TY 2021 Form 990

(A) Name and title	(B) Average hours per week (list any hours for related organizations below dotted line)	(C) Position (do not check more than one box, unless person is both an officer and a director/trustee)	(E) Reportable compensation from related organizations (W-2/1099-MISC/1099-NEC)
(1) JEANNE MOCKARD CFA...................................................................... DIRECTOR	1.50 .................	X			0	0	0
(2) ELIZABETH WHELAN PHD...................................................................... DIRECTOR	0.50 .................	X			0	0	0
(3) AGNES B KANE MD PHD...................................................................... DIRECTOR	0.25 .................	X			0	0	0
(4) PRACHI SAMUDRA...................................................................... DIRECTOR	0.50 .................	X			0	0	0
(5) SARAH DEVAN...................................................................... DIRECTOR	0.50 .................	X			0	0	0
(6) CATHIE RAGOVIN MD...................................................................... DIRECTOR	0.50 .................	X			0	0	0
(7) LISA GOODWIN-ROBBINS RA CCS...................................................................... CHAIR	1.50 .................	X	X		0	0	0
(8) GEORGIA MCGAUGHEY PHD...................................................................... TREASURER	1.00 .................	X	X		0	0	0
(9) PATTI A STOLL...................................................................... VICE-CHAIR	1.50 .................	X	X		0	0	0
(10) CINDY SHULAK-ROME...................................................................... CLERK	0.25 .................	X	X		0	0	0
(11) JULIA BRODY PHD...................................................................... EXECUTIVE DIRECTOR/SENIOR	40.00 .................		X		165,139	0	22,356
(12) RUTHANN RUDEL...................................................................... DIRECTOR OF RESEARCH	37.00 .................			X	128,802	0	20,291
(13) CHRISTOPHER SWARTZ...................................................................... MANAGING DIRECTOR	40.00 .................			X	118,583	0	12,048
(14) RACHEL SARVEY...................................................................... DIRECTOR OF DEVELOPMENT	40.00 .................			X	106,372	0	17,847
(15) DIANE CZWAKIEL...................................................................... DIRECTOR OF FINANCE & ADMINISTRATION	32.00 .................			X	103,926	0	21,573
(16) LAUREN SCHAIDER...................................................................... SENIOR SCIENTIST	40.00 .................			X	112,318	0	16,527

- TIN:

SCHEDULE A
(Form 990)

Department of the Treasury
Internal Revenue Service

Public Charity Status and Public Support

Complete if the organization is a section 501(c)(3) organization or a section 4947(a)(1) nonexempt charitable trust.
right arrow

Attach to Form 990 or Form 990-EZ.
right arrow

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2021

Open to Public
Inspection

Name of the organization

SILENT SPRING INSTITUTE INC

Employer identification number

04-3237106

Part I

Reason for Public Charity Status (All organizations must complete this part.) See instructions.

The organization is not a private foundation because it is: (For lines 1 through 12, check only one box.)

A church, convention of churches, or association of churches described in section 170(b)(1)(A)(i).

A school described in section 170(b)(1)(A)(ii). (Attach Schedule E (Form 990).)

A hospital or a cooperative hospital service organization described in section 170(b)(1)(A)(iii).

A medical research organization operated in conjunction with a hospital described in section 170(b)(1)(A)(iii). Enter the hospital's name, city, and state:

An organization operated for the benefit of a college or university owned or operated by a governmental unit described in section 170(b)(1)(A)(iv). (Complete Part II.)

A federal, state, or local government or governmental unit described in section 170(b)(1)(A)(v).

An organization that normally receives a substantial part of its support from a governmental unit or from the general public described in section 170(b)(1)(A)(vi). (Complete Part II.)

A community trust described in section 170(b)(1)(A)(vi). (Complete Part II.)

An agricultural research organization described in 170(b)(1)(A)(ix) operated in conjunction with a land-grant college or university or a non-land grant college of agriculture. See instructions. Enter the name, city, and state of the college or university:

An organization that normally receives: (1) more than 33 1/3% of its support from contributions, membership fees, and gross receipts from activities related to its exempt functions—subject to certain exceptions, and (2) no more than 33 1/3% of its support from gross investment income and unrelated business taxable income (less section 511 tax) from businesses acquired by the organization after June 30, 1975. See section 509(a)(2). (Complete Part III.)

An organization organized and operated exclusively to test for public safety. See section 509(a)(4).

An organization organized and operated exclusively for the benefit of, to perform the functions of, or to carry out the purposes of one or more publicly supported organizations described in section 509(a)(1) or section 509(a)(2). See section 509(a)(3). Check the box on lines 12a through 12d that describes the type of supporting organization and complete lines 12e, 12f, and 12g.

Type I. A supporting organization operated, supervised, or controlled by its supported organization(s), typically by giving the supported organization(s) the power to regularly appoint or elect a majority of the directors or trustees of the supporting organization. You must complete Part IV, Sections A and B.

Type II. A supporting organization supervised or controlled in connection with its supported organization(s), by having control or management of the supporting organization vested in the same persons that control or manage the supported organization(s). You must complete Part IV, Sections A and C.

Type III functionally integrated. A supporting organization operated in connection with, and functionally integrated with, its supported organization(s) (see instructions). You must complete Part IV, Sections A, D, and E.

Type III non-functionally integrated. A supporting organization operated in connection with its supported organization(s) that is not functionally integrated. The organization generally must satisfy a distribution requirement and an attentiveness requirement (see instructions). You must complete Part IV, Sections A and D, and Part V.

Check this box if the organization received a written determination from the IRS that it is a Type I, Type II, Type III functionally integrated, or Type III non-functionally integrated supporting organization.

Enter the number of supported organizations ...............................

Provide the following information about the supported organization(s).

(i) Name of supported organization	(ii) EIN	(iv) Is the organization listed in your governing document?		(v) Amount of monetary support (see instructions)	(vi) Amount of other support (see instructions)
(i) Name of supported organization	(ii) EIN	Yes	No	(v) Amount of monetary support (see instructions)	(vi) Amount of other support (see instructions)


Total

For Paperwork Reduction Act Notice, see the Instructions for
Form 990 or 990-EZ.

Cat. No. 11285F

Schedule A (Form 990) 2021

Page 2

Part II

Support Schedule for Organizations Described in Sections 170(b)(1)(A)(iv) and 170(b)(1)(A)(vi)
(Complete only if you checked the box on line 5, 7, or 8 of Part I or if the organization failed to qualify under Part III. If the organization failed to qualify under the tests listed below, please complete Part III.)

Section A. Public Support

Calendar year (or fiscal year beginning in)		(a) 2017	(b) 2018	(c) 2019	(d) 2020	(e) 2021	(f) Total
1	Gifts, grants, contributions, and membership fees received. (Do not include any "unusual grant.") ..	2,322,244	2,388,576	3,814,878	4,560,422	4,726,692	17,812,812
2	Tax revenues levied for the organization's benefit and either paid to or expended on its behalf....
3	The value of services or facilities furnished by a governmental unit to the organization without charge..
4	Total. Add lines 1 through 3	2,322,244	2,388,576	3,814,878	4,560,422	4,726,692	17,812,812
5	The portion of total contributions by each person (other than a governmental unit or publicly supported organization) included on line 1 that exceeds 2% of the amount shown on line 11, column (f) ..						84,635
6	Public support. Subtract line 5 from line 4.						17,728,177

Section B. Total Support

Calendar year (or fiscal year beginning in)		(a) 2017	(b) 2018	(c) 2019	(d) 2020	(e) 2021	(f) Total
7	Amounts from line 4..	2,322,244	2,388,576	3,814,878	4,560,422	4,726,692	17,812,812
8	Gross income from interest, dividends, payments received on securities loans, rents, royalties and income from similar sources...	1,739	2,711	3,162	4,293	2,943	14,848
9	Net income from unrelated business activities, whether or not the business is regularly carried on..
10	Other income. Do not include gain or loss from the sale of capital assets (Explain in Part VI.)..	1,387	1,305	4,566	2,550	2,082	11,890
11	Total support. Add lines 7 through 10						17,839,550

Gross receipts from related activities, etc. (see instructions) ..................

First 5 years. If the Form 990 is for the organization's first, second, third, fourth, or fifth tax year as a section 501(c)(3) organization, check this box and stop here ........................................ right arrow

Section C. Computation of Public Support Percentage

Public support percentage for 2021 (line 6, column (f) divided by line 11, column (f)) .........

99.380 %

Public support percentage for 2020 Schedule A, Part II, line 14 ...............

97.080 %

16a

33 1/3% support test—2021. If the organization did not check the box on line 13, and line 14 is 33 1/3 % or more, check this box
and stop here. The organization qualifies as a publicly supported organization ....................... right arrow

33 1/3% support test—2020. If the organization did not check a box on line 13 or 16a, and line 15 is 33 1/3% or more, check this
box and stop here. The organization qualifies as a publicly supported organization ..................... right arrow

17a

10%-facts-and-circumstances test—2021. If the organization did not check a box on line 13, 16a, or 16b, and line 14
is 10% or more, and if the organization meets the "facts-and-circumstances" test, check this box and stop here. Explain
in Part VI how the organization meets the "facts-and-circumstances" test. The organization qualifies as a publicly supported
organization ..................................................... right arrow

10%-facts-and-circumstances test—2020. If the organization did not check a box on line 13, 16a, 16b, or 17a, and line
15 is 10% or more, and if the organization meets the "facts-and-circumstances" test, check this box and stop here.
Explain in Part VI how the organization meets the "facts-and-circumstances" test. The organization qualifies as a publicly
supported organization ................................................ right arrow

Private foundation. If the organization did not check a box on line 13, 16a, 16b, 17a, or 17b, check this box and see
instructions ..................................................... right arrow

Schedule A (Form 990) 2021

Page 3

Part III

Support Schedule for Organizations Described in Section 509(a)(2)
(Complete only if you checked the box on line 10 of Part I or if the organization failed to qualify under Part II. If the organization fails to qualify under the tests listed below, please complete Part II.)

Section A. Public Support

Calendar year (or fiscal year beginning in)		(a) 2017	(b) 2018	(c) 2019	(d) 2020	(e) 2021	(f) Total
1	Gifts, grants, contributions, and membership fees received. (Do not include any "unusual grants.") .
2	Gross receipts from admissions, merchandise sold or services performed, or facilities furnished in any activity that is related to the organization's tax-exempt purpose
3	Gross receipts from activities that are not an unrelated trade or business under section 513 .....
4	Tax revenues levied for the organization's benefit and either paid to or expended on its behalf...
5	The value of services or facilities furnished by a governmental unit to the organization without charge
6	Total. Add lines 1 through 5
7a	Amounts included on lines 1, 2, and 3 received from disqualified persons
b	Amounts included on lines 2 and 3 received from other than disqualified persons that exceed the greater of $5,000 or 1% of the amount on line 13 for the year.
c	Add lines 7a and 7b..
8	Public support. (Subtract line 7c from line 6.)

Section B. Total Support

Calendar year (or fiscal year beginning in)		(a) 2017	(b) 2018	(c) 2019	(d) 2020	(e) 2021	(f) Total
9	Amounts from line 6...
10a	Gross income from interest, dividends, payments received on securities loans, rents, royalties and income from similar sources..
b	Unrelated business taxable income (less section 511 taxes) from businesses acquired after June 30, 1975.
c	Add lines 10a and 10b.
11	Net income from unrelated business activities not included on line 10b, whether or not the business is regularly carried on.
12	Other income. Do not include gain or loss from the sale of capital assets (Explain in Part VI.) ..
13	Total support. (Add lines 9, 10c, 11, and 12.)..

First 5 years. If the Form 990 is for the organization's first, second, third, fourth, or fifth tax year as a section 501(c)(3) organization,
check this box and stop here............................................. right arrow

Section C. Computation of Public Support Percentage

Public support percentage for 2021 (line 8, column (f) divided by line 13, column (f)) .........

Public support percentage from 2020 Schedule A, Part III, line 15 ...............

Section D. Computation of Investment Income Percentage

Investment income percentage for 2021 (line 10c, column (f) divided by line 13, column (f)) ......

Investment income percentage from 2020 Schedule A, Part III, line 17 .............

19a

331/3% support tests—2021. If the organization did not check the box on line 14, and line 15 is more than 33 1/3%, and line 17 is not more than 33 1/3%, check this box and stop here. The organization qualifies as a publicly supported organization ....... right arrow

33 1/3% support tests—2020. If the organization did not check a box on line 14 or line 19a, and line 16 is more than 33 1/3% and line 18 is not more than 33 1/3%, check this box and stop here. The organization qualifies as a publicly supported organization .... right arrow

Private foundation. If the organization did not check a box on line 14, 19a, or 19b, check this box and see instructions .... right arrow

Schedule A (Form 990) 2021

Page 4

Part IV

Supporting Organizations

(Complete only if you checked a box on line 12 of Part I. If you checked box 12a, of Part I, complete Sections A and B. If you checked box 12b, of Part I, complete Sections A and C. If you checked box 12c, of Part I, complete Sections A, D, and E. If you checked box12d, of Part I, complete Sections A and D, and complete Part V.)

Section A. All Supporting Organizations

Yes

Are all of the organization’s supported organizations listed by name in the organization’s governing documents?
If "No," describe in Part VI how the supported organizations are designated. If designated by class or purpose,
describe the designation. If historic and continuing relationship, explain.

Did the organization have any supported organization that does not have an IRS determination of status under section 509(a)(1) or (2)? If "Yes," explain in Part VI how the organization determined that the supported organization was described in section 509(a)(1) or (2).

Did the organization have a supported organization described in section 501(c)(4), (5), or (6)? If "Yes," answer lines 3b and 3c below.

Did the organization confirm that each supported organization qualified under section 501(c)(4), (5), or (6) and satisfied the public support tests under section 509(a)(2)? If "Yes," describe in Part VI when and how the organization made the determination.

Did the organization ensure that all support to such organizations was used exclusively for section 170(c)(2)(B) purposes? If "Yes," explain in Part VI what controls the organization put in place to ensure such use.

Was any supported organization not organized in the United States ("foreign supported organization")? If “Yes” and if you checked box 12a or 12b in Part I, answer lines 4b and 4c below.

Did the organization have ultimate control and discretion in deciding whether to make grants to the foreign supported organization? If “Yes,” describe in Part VI how the organization had such control and discretion despite being controlled or supervised by or in connection with its supported organizations.

Did the organization support any foreign supported organization that does not have an IRS determination under sections 501(c)(3) and 509(a)(1) or (2)? If “Yes,” explain in Part VI what controls the organization used to ensure that all support to the foreign supported organization was used exclusively for section 170(c)(2)(B) purposes.

Did the organization add, substitute, or remove any supported organizations during the tax year? If “Yes,” answer lines 5b and 5c below (if applicable). Also, provide detail in Part VI, including (i) the names and EIN numbers of the supported organizations added, substituted, or removed; (ii) the reasons for each such action; (iii) the authority under the organization's organizing document authorizing such action; and (iv) how the action was accomplished (such as by amendment to the organizing document).

Type I or Type II only. Was any added or substituted supported organization part of a class already designated in the organization's organizing document?

Substitutions only. Was the substitution the result of an event beyond the organization's control?

Did the organization provide support (whether in the form of grants or the provision of services or facilities) to anyone other than (i) its supported organizations, (ii) individuals that are part of the charitable class benefited by one or more of its supported organizations, or (iii) other supporting organizations that also support or benefit one or more of the filing organization’s supported organizations? If “Yes,” provide detail in Part VI.

Did the organization provide a grant, loan, compensation, or other similar payment to a substantial contributor (defined in section 4958(c)(3)(C)), a family member of a substantial contributor, or a 35% controlled entity with regard to a substantial contributor? If “Yes,” complete Part I of Schedule L (Form 990) .

Did the organization make a loan to a disqualified person (as defined in section 4958) not described on line 7? If “Yes,” complete Part I of Schedule L (Form 990).

Was the organization controlled directly or indirectly at any time during the tax year by one or more disqualified persons, as defined in section 4946 (other than foundation managers and organizations described in section 509(a)(1) or (2))? If “Yes,” provide detail in Part VI.

Did one or more disqualified persons (as defined on line 9a) hold a controlling interest in any entity in which the supporting organization had an interest? If “Yes,” provide detail in Part VI.

Did a disqualified person (as defined on line 9a) have an ownership interest in, or derive any personal benefit from, assets in which the supporting organization also had an interest? If “Yes,” provide detail in Part VI.

10a

Was the organization subject to the excess business holdings rules of section 4943 because of section 4943(f) (regarding certain Type II supporting organizations, and all Type III non-functionally integrated supporting organizations)? If “Yes,” answer line 10b below.

10a

Did the organization have any excess business holdings in the tax year? (Use Schedule C, Form 4720, to determine whether the organization had excess business holdings).

10b

Schedule A (Form 990) 2021

Page 5

Part IV

Supporting Organizations (continued)

Yes

Has the organization accepted a gift or contribution from any of the following persons?

A person who directly or indirectly controls, either alone or together with persons described on lines 11b and 11c below, the governing body of a supported organization?

11a

A family member of a person described on 11a above?

11b

A 35% controlled entity of a person described on line 11a or 11b above? If “Yes” to 11a, 11b, or 11c, provide detail in Part VI.

11c

Section B. Type I Supporting Organizations

Yes

Did the officers, directors, trustees, or membership of one or more supported organizations have the power to regularly appoint or elect at least a majority of the organization’s directors or trustees at all times during the tax year? If “No,” describe in Part VI how the supported organization(s) effectively operated, supervised, or controlled the organization’s activities. If the organization had more than one supported organization, describe how the powers to appoint and/or remove directors or trustees were allocated among the supported organizations and what conditions or restrictions, if any, applied to such powers during the tax year.

Did the organization operate for the benefit of any supported organization other than the supported organization(s) that operated, supervised, or controlled the supporting organization? If “Yes,” explain in Part VI how providing such benefit carried out the purposes of the supported organization(s) that operated, supervised or controlled the supporting organization.

Section C. Type II Supporting Organizations

Yes

Were a majority of the organization’s directors or trustees during the tax year also a majority of the directors or trustees of each of the organization’s supported organization(s)? If “No,” describe in Part VI how control or management of the supporting organization was vested in the same persons that controlled or managed the supported organization(s).

Section D. All Type III Supporting Organizations

Yes

Did the organization provide to each of its supported organizations, by the last day of the fifth month of the organization’s tax year, (i) a written notice describing the type and amount of support provided during the prior tax year, (ii) a copy of the Form 990 that was most recently filed as of the date of notification, and (iii) copies of the organization’s governing documents in effect on the date of notification, to the extent not previously provided?

Were any of the organization’s officers, directors, or trustees either (i) appointed or elected by the supported organization(s) or (ii) serving on the governing body of a supported organization? If "No," explain in Part VI how the organization maintained a close and continuous working relationship with the supported organization(s).

By reason of the relationship described in line 2 above, did the organization’s supported organizations have a significant voice in the organization’s investment policies and in directing the use of the organization’s income or assets at all times during the tax year? If "Yes," describe in Part VI the role the organization’s supported organizations played in this regard.

Section E. Type III Functionally-Integrated Supporting Organizations

Check the box next to the method that the organization used to satisfy the Integral Part Test during the year (see instructions):

The organization satisfied the Activities Test. Complete line 2 below.

The organization is the parent of each of its supported organizations. Complete line 3 below.

The organization supported a governmental entity. Describe in Part VI how you supported a government entity (see instructions)

Activities Test. Answer lines 2a and 2b below.

Yes

Did substantially all of the organization’s activities during the tax year directly further the exempt purposes of the supported organization(s) to which the organization was responsive? If "Yes," then in Part VI identify those supported organizations and explain how these activities directly furthered their exempt purposes, how the organization was responsive to those supported organizations, and how the organization determined that these activities constituted substantially all of its activities.

Did the activities described on line 2a, above constitute activities that, but for the organization’s involvement, one or more of the organization’s supported organization(s) would have been engaged in? If "Yes," explain in Part VI the reasons for the organization’s position that its supported organization(s) would have engaged in these activities but for the organization’s involvement.

Parent of Supported Organizations. Answer lines 3a and 3b below.

Did the organization have the power to regularly appoint or elect a majority of the officers, directors, or trustees of each of the supported organizations?If "Yes" or "No", provide details in Part VI.

Did the organization exercise a substantial degree of direction over the policies, programs and activities of each of its supported organizations? If "Yes," describe in Part VI. the role played by the organization in this regard.

Schedule A (Form 990) 2021

Page 6

Part V

Type III Non-Functionally Integrated 509(a)(3) Supporting Organizations

Check here if the organization satisfied the Integral Part Test as a qualifying trust on Nov. 20, 1970 (explain in Part VI). See instructions. All other Type III non-functionally integrated supporting organizations must complete Sections A through E.

	Section A - Adjusted Net Income		(A) Prior Year	(B) Current Year (optional)
1	Net short-term capital gain	1
2	Recoveries of prior-year distributions	2
3	Other gross income (see instructions)	3
4	Add lines 1 through 3	4
5	Depreciation and depletion	5
6	Portion of operating expenses paid or incurred for production or collection of gross income or for management, conservation, or maintenance of property held for production of income (see instructions)	6
7	Other expenses (see instructions)	7
8	Adjusted Net Income (subtract lines 5, 6 and 7 from line 4)	8

	Section B - Minimum Asset Amount		(A) Prior Year	(B) Current Year (optional)
1	Aggregate fair market value of all non-exempt-use assets (see instructions for short tax year or assets held for part of year):	1
a	Average monthly value of securities	1a
b	Average monthly cash balances	1b
c	Fair market value of other non-exempt-use assets	1c
d	Total (add lines 1a, 1b, and 1c)	1d
e	Discount claimed for blockage or other factors (explain in detail in Part VI):
2	Acquisition indebtedness applicable to non-exempt use assets	2
3	Subtract line 2 from line 1d	3
4	Cash deemed held for exempt use. Enter 0.015 of line 3 (for greater amount, see instructions).	4
5	Net value of non-exempt-use assets (subtract line 4 from line 3)	5
6	Multiply line 5 by 0.035	6
7	Recoveries of prior-year distributions	7
8	Minimum Asset Amount (add line 7 to line 6)	8

	Section C - Distributable Amount		Current Year
1	Adjusted net income for prior year (from Section A, line 8, Column A)	1
2	Enter 85% of line 1	2
3	Minimum asset amount for prior year (from Section B, line 8, Column A)	3
4	Enter greater of line 2 or line 3	4
5	Income tax imposed in prior year	5
6	Distributable Amount. Subtract line 5 from line 4, unless subject to emergency temporary reduction (see instructions)	6

Check here if the current year is the organization's first as a non-functionally-integrated Type III supporting organization (see instructions)

Schedule A (Form 990) 2021

Page 7

Part V

Type III Non-Functionally Integrated 509(a)(3) Supporting Organizations(continued)

Section D - Distributions		Current Year
1 Amounts paid to supported organizations to accomplish exempt purposes	1
2 Amounts paid to perform activity that directly furthers exempt purposes of supported organizations, in excess of income from activity	2
3 Administrative expenses paid to accomplish exempt purposes of supported organizations	3
4 Amounts paid to acquire exempt-use assets	4
5 Qualified set-aside amounts (prior IRS approval required - provide details in Part VI)	5
6 Other distributions (describe in Part VI). See instructions	6
7Total annual distributions. Add lines 1 through 6.	7
8 Distributions to attentive supported organizations to which the organization is responsive (provide details in Part VI). See instructions	8
9 Distributable amount for 2021 from Section C, line 6	9
10 Line 8 amount divided by Line 9 amount	10

Section E - Distribution Allocations (see instructions)		(i) Excess Distributions	(ii) Underdistributions Pre-2021	(iii) Distributable Amount for 2021
1 Distributable amount for 2021 from Section C, line 6
2 Underdistributions, if any, for years prior to 2021 (reasonable cause required-- explain in Part VI). See instructions.
3 Excess distributions carryover, if any, to 2021:
a From 2016.......
b From 2017.......
c From 2018.......
d From 2019.......
e From 2020.......
fTotal of lines 3a through e
g Applied to underdistributions of prior years
h Applied to 2021 distributable amount
i Carryover from 2016 not applied (see instructions)
j Remainder. Subtract lines 3g, 3h, and 3i from line 3f.
4Distributions for 2021 from Section D, line 7:
$
a Applied to underdistributions of prior years
b Applied to 2021 distributable amount
c Remainder. Subtract lines 4a and 4b from line 4.
5 Remaining underdistributions for years prior to 2021, if any. Subtract lines 3g and 4a from line 2. If the amount is greater than zero, explain in Part VI. See instructions.
6 Remaining underdistributions for 2021. Subtract lines 3h and 4b from line 1. If the amount is greater than zero, explain in Part VI. See instructions.
7 Excess distributions carryover to 2022. Add lines 3j and 4c.
8 Breakdown of line 7:
a Excess from 2017.....
b Excess from 2018.....
c Excess from 2019.....
d Excess from 2020.....
e Excess from 2021.....

Schedule A (Form 990) (2021)

Schedule A (Form 990) 2021

Page 8

Part VI

Supplemental Information. Provide the explanations required by Part II, line 10; Part II, line 17a or 17b; Part III, line 12; Part IV, Section A, lines 1, 2, 3b, 3c, 4b, 4c, 5a, 6, 9a, 9b, 9c, 11a, 11b, and 11c; Part IV, Section B, lines 1 and 2; Part IV, Section C, line 1; Part IV, Section D, lines 2 and 3; Part IV, Section E, lines 1c, 2a, 2b, 3a and 3b; Part V, line 1; Part V, Section B, line 1e; Part V Section D, lines 5, 6, and 8; and Part V, Section E, lines 2, 5, and 6. Also complete this part for any additional information. (See instructions).

Facts And Circumstances Test

Return Reference	Explanation
SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:	HONORARIUMS - 2017 AMOUNT: $ 1,287. 2018 AMOUNT: $ 1,305. 2019 AMOUNT: $ 4,566. 2020 AMOUNT: $ 2,550. 2021 AMOUNT: $ 750. OTHER INCOME - 2017 AMOUNT: $ 100. 2021 AMOUNT: $ 1,332.

Schedule A (Form 990) 2021

Additional Data

Software ID:
Software Version:

- TIN:

Schedule B
(Form 990)

Department of the Treasury
Internal Revenue Service

Schedule of Contributors

Attach to Form 990, 990-EZ, or 990-PF.

Go to www.irs.gov/Form990 for the latest information.

OMB No. 1545-0047

2021

Name of the organization

SILENT SPRING INSTITUTE INC

Employer identification number

04-3237106

Organization type (check one):

Filers of:

Section:

Form 990 or 990-EZ

501(c)( ) (enter number) organization

4947(a)(1) nonexempt charitable trust not treated as a private foundation

527 political organization

Form 990-PF

501(c)(3) exempt private foundation

4947(a)(1) nonexempt charitable trust treated as a private foundation

501(c)(3) taxable private foundation

Check if your organization is covered by the General Rule or a Special Rule.
Note: Only a section 501(c)(7), (8), or (10) organization can check boxes for both the General Rule and a Special Rule. See instructions.

General Rule

For an organization filing Form 990, 990-EZ, or 990-PF that received, during the year, contributions totaling $5,000 or more (in money or other property) from any one contributor. Complete Parts I and II. See instructions for determining a contributor's total contributions.

Special Rules

For an organization described in section 501(c)(3) filing Form 990 or 990-EZ that met the 33¹/3% support test of the regulations
under sections 509(a)(1) and 170(b)(1)(A)(vi), that checked Schedule A (Form 990 or 990-EZ), Part II, line 13, 16a, or 16b, and that received from any one contributor, during the year, total contributions of the greater of (1) $5,000 or (2) 2% of the amount on (i) Form 990, Part VIII, line 1h, or (ii) Form 990-EZ, line 1. Complete Parts I and II.

For an organization described in section 501(c)(7), (8), or (10) filing Form 990 or 990-EZ that received from any one contributor,
during the year, total contributions of more than $1,000 exclusively for religious, charitable, scientific, literary, or educational purposes, or for the prevention of cruelty to children or animals. Complete Parts I, II, and III.

For an organization described in section 501(c)(7), (8), or (10) filing Form 990 or 990-EZ that received from any one contributor,
during the year, contributions exclusively for religious, charitable, etc., purposes, but no such contributions totaled more than $1,000. If this box is checked, enter here the total contributions that were received during the year for an exclusively religious, charitable, etc., purpose. Don't complete any of the parts unless the General Rule applies to this organization because it received nonexclusively religious, charitable, etc., contributions totaling $5,000 or more during the year ......... Arrow Bullet

Caution: An organization that isn't covered by the General Rule and/or the Special Rules doesn't file Schedule B (Form 990,
990-EZ, or 990-PF), but it must answer “No” on Part IV, line 2, of its Form 990; or check the box on line H of its Form 990-EZ
or on its Form 990PF, Part I, line 2, to certify that it doesn't meet the filing requirements of Schedule B (Form 990,
990-EZ, or 990-PF).

For Paperwork Reduction Act Notice, see the Instructions
for Form 990, 990-EZ, or 990-PF.

Cat. No. 30613XSchedule B (Form 990) (2021)

Schedule B (Form 990) (2021) Page 2

Name of organization SILENT SPRING INSTITUTE INC

Part I Contributors	Contributors (see instructions). Use duplicate copies of Part I if additional space is needed.
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
RESTRICTED	,	$ RESTRICTED	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
Schedule B (Form 990) (2021)

Schedule B (Form 990) (2021)

Page 3

Name of organization SILENT SPRING INSTITUTE INC		Employer identification number 04-3237106

Part II	Noncash Property (see instructions). Use duplicate copies of Part II if additional space is needed.
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (See instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (See instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (See instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (See instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (See instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (See instructions)	(d) Date received
		$
Schedule B (Form 990) (2021)

Schedule B (Form 990) (2021)

Page 4


Name of organization SILENT SPRING INSTITUTE INC			Employer identification number 04-3237106
Part III Exclusively religious, charitable, etc., contributions to organizations described in section 501(c)(7), (8), or (10) that total more than $1,000 for the year from any one contributor. Complete columns (a) through (e) and the following line entry. For organizations completing Part III, enter the total of exclusively religious, charitable, etc., contributions of $1,000 or less for the year. (Enter this information once. See instructions.) $ Use duplicate copies of Part III if additional space is needed.

(a)
No. from Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

(a)
No. from Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

(a)
No. from Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

(a)
No. from Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

Schedule B (Form 990) (2021)

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE D
(Form 990)

Department of the Treasury
Internal Revenue Service

Supplemental Financial Statements

Complete if the organization answered "Yes," on Form 990,
Part IV, line 6, 7, 8, 9, 10, 11a, 11b, 11c, 11d, 11e, 11f, 12a, or 12b.
SchDMd Bullet

Attach to Form 990.
SchDMd Bullet

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2021

Open to Public Inspection

Name of the organization

SILENT SPRING INSTITUTE INC

Employer identification number

04-3237106

Part I

Organizations Maintaining Donor Advised Funds or Other Similar Funds or Accounts. Complete if the organization answered "Yes" on Form 990, Part IV, line 6.

		(a) Donor advised funds	(b) Funds and other accounts
1	Total number at end of year .........
2	Aggregate value of contributions to (during year)
3	Aggregate value of grants from (during year)
4	Aggregate value at end of year ........

Did the organization inform all donors and donor advisors in writing that the assets held in donor advised funds are the organization’s property, subject to the organization’s exclusive legal control? ............

Yes No

Did the organization inform all grantees, donors, and donor advisors in writing that grant funds can be used only for charitable purposes and not for the benefit of the donor or donor advisor, or for any other purpose conferring impermissible private benefit? ...................................

Yes No

Part II

Conservation Easements.
Complete if the organization answered "Yes" on Form 990, Part IV, line 7.

Purpose(s) of conservation easements held by the organization (check all that apply).

Preservation of land for public use (e.g., recreation or education) Preservation of an historically important land area

Protection of natural habitat Preservation of a certified historic structure

Preservation of open space

Complete lines 2a through 2d if the organization held a qualified conservation contribution in the form of a conservation easement on the last day of the tax year.


a	Total number of conservation easements ......................	2a
b	Total acreage restricted by conservation easements ....................	2b
c	Number of conservation easements on a certified historic structure included in (a) .....	2c
d	Number of conservation easements included in (c) acquired after 7/25/06, and not on a historic structure listed in the National Register ...	2d

Number of conservation easements modified, transferred, released, extinguished, or terminated by the organization during the
tax year SchDMd Bullet

Number of states where property subject to conservation easement is located SchDMd Bullet

Does the organization have a written policy regarding the periodic monitoring, inspection, handling of violations, and enforcement of the conservation easements it holds? ............

Yes No

Staff and volunteer hours devoted to monitoring, inspecting, handling of violations, and enforcing conservation easements during the year
SchDMd Bullet

Amount of expenses incurred in monitoring, inspecting, handling of violations, and enforcing conservation easements during the year
SchDMd Bullet

Does each conservation easement reported on line 2(d) above satisfy the requirements of section 170(h)(4)(B)(i) and section 170(h)(4)(B)(ii)? .............................

Yes No

In Part XIII, describe how the organization reports conservation easements in its revenue and expense statement, and
balance sheet, and include, if applicable, the text of the footnote to the organization’s financial statements that describes
the organization’s accounting for conservation easements.

Part III

Organizations Maintaining Collections of Art, Historical Treasures, or Other Similar Assets.
Complete if the organization answered "Yes" on Form 990, Part IV, line 8.

If the organization elected, as permitted under FASB ASC 958, not to report in its revenue statement and balance sheet works of art, historical treasures, or other similar assets held for public exhibition, education, or research in furtherance of public service, provide, in Part XIII, the text of the footnote to its financial statements that describes these items.

If the organization elected, as permitted under FASB ASC 958, to report in its revenue statement and balance sheet works of art, historical treasures, or other similar assets held for public exhibition, education, or research in furtherance of public service, provide the following amounts relating to these items:

(i)

Revenue included on Form 990, Part VIII, line 1 ......................... SchDMd Bullet

(ii)

Assets included in Form 990, Part X ............................... SchDMd Bullet

If the organization received or held works of art, historical treasures, or other similar assets for financial gain, provide the
following amounts required to be reported under FASB ASC 958 relating to these items:

Revenue included on Form 990, Part VIII, line 1 .......................... SchDMd Bullet

Assets included in Form 990, Part X ............................... SchDMd Bullet

For Paperwork Reduction Act Notice, see the Instructions for Form 990.

Cat. No. 52283D

Schedule D (Form 990) 2021

Page 2

Part III

Organizations Maintaining Collections of Art, Historical Treasures, or Other Similar Assets (continued)

Using the organization’s acquisition, accession, and other records, check any of the following that are a significant use of its collection items (check all that apply):

Public exhibition

Loan or exchange programs

Scholarly research

Other

Preservation for future generations

Provide a description of the organization’s collections and explain how they further the organization’s exempt purpose in
Part XIII.

During the year, did the organization solicit or receive donations of art, historical treasures or other similar
assets to be sold to raise funds rather than to be maintained as part of the organization’s collection?...

Yes No

Part IV

Escrow and Custodial Arrangements. Complete if the organization answered "Yes" on Form 990, Part IV, line 9, or reported an amount on Form 990, Part X, line 21.

Is the organization an agent, trustee, custodian or other intermediary for contributions or other assets not
included on Form 990, Part X? ....................................

Yes No


b	If "Yes," explain the arrangement in Part XIII and complete the following table:		Amount
c	Beginning balance .............................	1c
d	Additions during the year ............................	1d
e	Distributions during the year ..........................	1e
f	Ending balance ................................	1f

Did the organization include an amount on Form 990, Part X, line 21, for escrow or custodial account liability? ...

Yes No

If "Yes," explain the arrangement in Part XIII. Check here if the explanation has been provided in Part XIII ....

Part V

Endowment Funds.
Complete if the organization answered "Yes" on Form 990, Part IV, line 10.

		(a) Current year	(b) Prior year	(c) Two years back	(d) Three years back	(e) Four years back

1a	Beginning of year balance ....
b	Contributions ...
c	Net investment earnings, gains, and losses
d	Grants or scholarships ...
e	Other expenditures for facilities and programs ...
f	Administrative expenses ....
g	End of year balance ......

Provide the estimated percentage of the current year end balance (line 1g, column (a)) held as:

Board designated or quasi-endowment SchDMd Bullet

Permanent endowment SchDMd Bullet

Term endowment SchDMd Bullet

The percentages on lines 2a, 2b, and 2c should equal 100%.

Are there endowment funds not in the possession of the organization that are held and administered for the
organization by:

Yes

(i) Unrelated organizations .................

3a(i)

(ii) Related organizations .................

3a(ii)

If "Yes" on 3a(ii), are the related organizations listed as required on Schedule R? .........

Describe in Part XIII the intended uses of the organization's endowment funds.

Part VI

Land, Buildings, and Equipment.
Complete if the organization answered "Yes" on Form 990, Part IV, line 11a. See Form 990, Part X, line 10.

Description of property		(a) Cost or other basis (investment)	(b) Cost or other basis (other)	(c) Accumulated depreciation	(d) Book value

1a	Land .....
b	Buildings ....
c	Leasehold improvements	96,505	35,662	60,843
d	Equipment ....	145,305	124,056	21,249
e	Other .....
Total. Add lines 1a through 1e. (Column (d) must equal Form 990, Part X, column (B), line 10(c).)..				82,092

Schedule D (Form 990) 2021

Page 3

Part VII

Investments - Other Securities.
Complete if the organization answered "Yes" on Form 990, Part IV, line 11b. See Form 990, Part X, line 12.

(a) Description of security or category (including name of security)	(b) Book value	(c) Method of valuation: Cost or end-of-year market value
(1) Financial derivatives.........
(2) Closely-held equity interests........
(3)Other
(A)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
Total. (Column (b) must equal Form 990, Part X, col. (B) line 12.)

Part VIII

Investments - Program Related. Complete if the organization answered 'Yes' on Form 990, Part IV, line 11c. See Form 990, Part X, line 13.

(a) Description of investment	(b) Book value	(c) Method of valuation: Cost or end-of-year market value

(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Total. (Column (b) must equal Form 990, Part X, col.(B) line 13.)

Part IX

Other Assets.
Complete if the organization answered 'Yes' on Form 990, Part IV, line 11d. See Form 990, Part X, line 15.

(a) Description				(b) Book value

(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Total. (Column (b) must equal Form 990, Part X, col.(B) line 15.)...........

Part X

Other Liabilities.
Complete if the organization answered 'Yes' on Form 990, Part IV, line 11e or 11f. See Form 990, Part X, line 25.

1.(a) Description of liability	(b) Book value
(1) Federal income taxes

(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Total. (Column (b) must equal Form 990, Part X, col.(B) line 25.)
2. Liability for uncertain tax positions. In Part XIII, provide the text of the footnote to the organization's financial statements that reports the organization's liability for uncertain tax positions under FIN 48 (ASC 740). Check here if the text of the footnote has been provided in Part XIII

Schedule D (Form 990) 2021

Page 4

Part XI Reconciliation of Revenue per Audited Financial Statements With Revenue per Return. Complete if the organization answered 'Yes' on Form 990, Part IV, line 12a.
1	Total revenue, gains, and other support per audited financial statements .......		1	4,731,717
2	Amounts included on line 1 but not on Form 990, Part VIII, line 12:
a	Net unrealized gains (losses) on investments ....	2a
b	Donated services and use of facilities .........	2b
c	Recoveries of prior year grants ...........	2c
d	Other (Describe in Part XIII.) ............	2d
e	Add lines 2a through 2d .....................		2e	0
3	Subtract line 2e from line 1..................		3	4,731,717
4	Amounts included on Form 990, Part VIII, line 12, but not on line 1:
a	Investment expenses not included on Form 990, Part VIII, line 7b .	4a
b	Other (Describe in Part XIII.) ...........	4b
c	Add lines 4a and 4b....................		4c	0
5	Total revenue. Add lines 3 and 4c. (This must equal Form 990, Part I, line 12.) ......		5	4,731,717

Part XII Reconciliation of Expenses per Audited Financial Statements With Expenses per Return. Complete if the organization answered 'Yes' on Form 990, Part IV, line 12a.
1	Total expenses and losses per audited financial statements ...........		1	4,148,837
2	Amounts included on line 1 but not on Form 990, Part IX, line 25:
a	Donated services and use of facilities .........	2a
b	Prior year adjustments ............	2b
c	Other losses ................	2c
d	Other (Describe in Part XIII.) ............	2d
e	Add lines 2a through 2d....................		2e	0
3	Subtract line 2e from line 1...................		3	4,148,837
4	Amounts included on Form 990, Part IX, line 25, but not on line 1:
a	Investment expenses not included on Form 990, Part VIII, line 7b ..	4a
b	Other (Describe in Part XIII.) ............	4b
c	Add lines 4a and 4b.....................		4c	0
5	Total expenses. Add lines 3 and 4c. (This must equal Form 990, Part I, line 18.) ......		5	4,148,837

Part XIII

Supplemental Information

Provide the descriptions required for Part II, lines 3, 5, and 9; Part III, lines 1a and 4; Part lV, lines 1b and 2b; Part V, line 4; Part X, line 2; Part XI, lines 2d and 4b; and Part XII, lines 2d and 4b. Also complete this part to provide any additional information.

Return Reference

Explanation

PART X, LINE 2:

THE INSTITUTE IS A NONPROFIT INSTITUTE AS DESCRIBED IN SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES ON TRADE OR BUSINESS PROFITS GENERATED BY ACTIVITIES RELATED TO THE INSTITUTE'S EXEMPT FUNCTION. THE INSTITUTE MAY BE SUBJECT TO FEDERAL AND STATE INCOME TAXES FOR PROFITS GENERATED FROM TRADE OR BUSINESS ACTIVITIES UNRELATED TO THE INSTITUTE'S EXEMPT FUNCTION. AS OF JUNE 30, 2022, MANAGEMENT BELIEVES THAT THE INSTITUTE HAS NOT GENERATED ANY UNRELATED BUSINESS TAXABLE INCOME. THE INSTITUTE ASSESSES THE RECORDING OF UNCERTAIN TAX POSITIONS BY EVALUATING THE MINIMUM RECOGNITION THRESHOLD AND MEASUREMENT REQUIREMENTS A TAX POSITION MUST MEET BEFORE BEING RECOGNIZED AS A BENEFIT IN THE FINANCIAL STATEMENTS. THE INSTITUTE'S POLICY IS TO RECOGNIZE INTEREST AND PENALTIES ACCRUED ON ANY UNCERTAIN TAX POSITIONS AS A COMPONENT OF INCOME TAX EXPENSE, IF ANY, IN ITS STATEMENT OF ACTIVITIES. THE INSTITUTE HAS NOT RECOGNIZED ANY LIABILITIES FOR UNCERTAIN TAX POSITIONS OR UNRECOGNIZED BENEFITS AS OF JUNE 30, 2022. THE INSTITUTE DOES NOT EXPECT ANY MATERIAL CHANGE IN UNCERTAIN TAX BENEFITS WITHIN THE NEXT 12 MONTHS.

Schedule D (Form 990) 2021

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE G (Form 990)

Department of the Treasury
Internal Revenue Service

Supplemental Information Regarding
Fundraising or Gaming Activities

Complete if the organization answered "Yes" on Form 990, Part IV, lines 17, 18, or 19, or if the organization entered more than $15,000 on Form 990-EZ, line 6a. right arrow

Attach to Form 990 or Form 990-EZ.
right arrow

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2021

Open to Public Inspection

Name of the organization
SILENT SPRING INSTITUTE INC

Employer identification number

04-3237106

Part I

Fundraising Activities.Complete if the organization answered "Yes" on Form 990, Part IV, line 17.

Form 990-EZ filers are not required to complete this part.

Indicate whether the organization raised funds through any of the following activities. Check all that apply.

a	Mail solicitations	e	Solicitation of non-government grants
b	Internet and email solicitations	f	Solicitation of government grants
c	Phone solicitations	g	Special fundraising events
d	In-person solicitations

Did the organization have a written or oral agreement with any individual (including officers, directors, trustees

or key employees listed in Form 990, Part VII) or entity in connection with professional fundraising services?

YesNo

If "Yes," list the 10 highest paid individuals or entities (fundraisers) pursuant to agreements under which the fundraiser is
to be compensated at least $5,000 by the organization.

(i) Name and address of individual or entity (fundraiser)	(iii) Did fundraiser have custody or control of contributions?
	Yes	No










Total . . . . . . . . . . . . . . . . . . . .

List all states in which the organization is registered or licensed to solicit contributions or has been notified it is exempt from registration or licensing.

For Paperwork Reduction Act Notice, see the Instructions for Form 990 or 990-EZ.

Cat. No. 50083H

Schedule G (Form 990) 2021

Page 2

Part II

Fundraising Events. Complete if the organization answered "Yes" on Form 990, Part IV, line 18, or reported more than $15,000 of fundraising event contributions and gross income on Form 990-EZ, lines 1 and 6b. List events with gross receipts greater than $5,000.

		(a) Event #1 OCT 2021 GALA (event type)	(d) Total events (add col. (a) through col. (c))
1	Gross receipts . . . . .	464,286	464,286
2	Less: Contributions . . . .	454,364	454,364
3	Gross income (line 1 minus line 2) . . . . . .	9,922	9,922

4	Cash prizes . . . . .	0
5	Noncash prizes . . . .	0
6	Rent/facility costs . . . .	31,000	31,000
7	Food and beverages . . .	11,422	11,422
8	Entertainment . . . .	8,375	8,375
9	Other direct expenses . . .	29,172	29,172
10	Direct expense summary. Add lines 4 through 9 in column (d) . . . . . . . . . .		79,969
11	Net income summary. Subtract line 10 from line 3, column (d). . . . . . . . . .		-70,047

Part III

Gaming. Complete if the organization answered "Yes" on Form 990, Part IV, line 19, or reported more than $15,000 on Form 990-EZ, line 6a.

		(a) Bingo	(b) Pull tabs/Instant bingo/progressive bingo	(c) Other gaming	(d) Total gaming (add col.(a) through col.(c))
1	Gross revenue . . . . .

2	Cash prizes . . . . .
3	Noncash prizes . . . .
4	Rent/facility costs . . . .
5	Other direct expenses . . .

Volunteer labor . . . .

	Yes %
	No

	Yes %
	No

	Yes %
	No

Direct expense summary. Add lines 2 through 5 in column (d) . . . . . . . . . . right arrow

Net gaming income summary. Subtract line 7 from line 1, column (d). . . . . . . . . right arrow

Enter the state(s) in which the organization conducts gaming activities:

Is the organization licensed to conduct gaming activities in each of these states? . . . . . . . .

YesNo

If "No," explain:

10a

Were any of the organization's gaming licenses revoked, suspended or terminated during the tax year? . . .

YesNo

If "Yes," explain:

Schedule G (Form 990) 2021

Page 3

Does the organization conduct gaming activities with nonmembers? . . . . . . . . . . .

YesNo

Is the organization a grantor, beneficiary or trustee of a trust or a member of a partnership or other entity

formed to administer charitable gaming? . . . . . . . . . . . . . . . . .

YesNo

Indicate the percentage of gaming activity conducted in:

The organization's facility . . . . . . . . . . . . . . . . . .

13a

An outside facility . . . . . . . . . . . . . . . . . . . .

13b

Enter the name and address of the person who prepares the organization's gaming/special events books and records:

Name

Address

15a

Does the organization have a contract with a third party from whom the organization receives gaming

revenue? . . . . . . . . . . . . . . . . . . . . . . . .

YesNo

If "Yes," enter the amount of gaming revenue received by the organization right arrow

$ and the

amount of gaming revenue retained by the third party right arrow

$ .

If "Yes," enter name and address of the third party:

Name

Address

Gaming manager information:

Name

Gaming manager compensation right arrow

Description of services provided right arrow

Director/officer Employee Independent contractor

Mandatory distributions:

Is the organization required under state law to make charitable distributions from the gaming proceeds to

retain the state gaming license? . . . . . . . . . . . . . . . . . . .

YesNo

Enter the amount of distributions required under state law distributed to other exempt organizations or spent

in the organization's own exempt activities during the tax year right arrow

Part IV

Supplemental Information. Provide the explanations required by Part I, line 2b, columns (iii) and (v); and Part III, lines 9, 9b, 10b, 15b, 15c, 16, and 17b, as applicable. Also provide any additional information. See instructions.

Return Reference	Explanation

Schedule G (Form 990) 2021

Additional Data

Software ID:
Software Version:

- TIN:

Schedule J
(Form 990)

Department of the Treasury
Internal Revenue Service

Compensation Information

For certain Officers, Directors, Trustees, Key Employees, and Highest
Compensated Employees
SchJMediumBullet

Complete if the organization answered "Yes" on Form 990, Part IV, line 23.
SchJMediumBullet

Attach to Form 990.
SchJMediumBullet

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2021

Open to Public Inspection

Name of the organization

SILENT SPRING INSTITUTE INC

Employer identification number

04-3237106

Part I

Questions Regarding Compensation

Yes

Check the appropiate box(es) if the organization provided any of the following to or for a person listed on Form
990, Part VII, Section A, line 1a. Complete Part III to provide any relevant information regarding these items.

First-class or charter travel Housing allowance or residence for personal use

Travel for companions Payments for business use of personal residence

Tax idemnification and gross-up payments Health or social club dues or initiation fees

Discretionary spending account Personal services (e.g., maid, chauffeur, chef)

If any of the boxes on Line 1a are checked, did the organization follow a written policy regarding payment or reimbursement or provision of all of the expenses described above? If "No," complete Part III to explain .....

Did the organization require substantiation prior to reimbursing or allowing expenses incurred by all
directors, trustees, officers, including the CEO/Executive Director, regarding the items checked on Line 1a? ....

Indicate which, if any, of the following the filing organization used to establish the compensation of the
organization's CEO/Executive Director. Check all that apply. Do not check any boxes for methods
used by a related organization to establish compensation of the CEO/Executive Director, but explain in Part III.

Compensation committee Written employment contract

Independent compensation consultant Compensation survey or study

Form 990 of other organizations Approval by the board or compensation committee

During the year, did any person listed on Form 990, Part VII, Section A, line 1a, with respect to the filing organization or a related organization:

Receive a severance payment or change-of-control payment? .............

Participate in, or receive payment from, a supplemental nonqualified retirement plan? .........

Participate in, or receive payment from, an equity-based compensation arrangement? .........

If "Yes" to any of lines 4a-c, list the persons and provide the applicable amounts for each item in Part III.

Only 501(c)(3), 501(c)(4), and 501(c)(29) organizations must complete lines 5-9.

For persons listed on Form 990, Part VII, Section A, line 1a, did the organization pay or accrue any
compensation contingent on the revenues of:

The organization? ....................

Any related organization? .......................

If "Yes," on line 5a or 5b, describe in Part III.

For persons listed on Form 990, Part VII, Section A, line 1a, did the organization pay or accrue any
compensation contingent on the net earnings of:

The organization? ..................

Any related organization? ......................

If "Yes," on line 6a or 6b, describe in Part III.

For persons listed on Form 990, Part VII, Section A, line 1a, did the organization provide any nonfixed
payments not described in lines 5 and 6? If "Yes," describe in Part III ............

Were any amounts reported on Form 990, Part VII, paid or accured pursuant to a contract that was
subject to the initial contract exception described in Regulations section 53.4958-4(a)(3)? If "Yes," describe
in Part III ..........................

If "Yes" on line 8, did the organization also follow the rebuttable presumption procedure described in Regulations section 53.4958-6(c)? .........................

For Paperwork Reduction Act Notice, see the Instructions for Form 990.

Cat. No. 50053T

Schedule J (Form 990) 2021

Page 2

Part II

Officers, Directors, Trustees, Key Employees, and Highest Compensated Employees. Use duplicate copies if additional space is needed.

For each individual whose compensation must be reported on Schedule J, report compensation from the organization on row (i) and from related organizations, described in the
instructions, on row (ii). Do not list any individuals that are not listed on Form 990, Part VII.
Note. The sum of columns (B)(i)-(iii) for each listed individual must equal the total amount of Form 990, Part VII, Section A, line 1a, applicable column (D) and (E) amounts for that individual.

(A) Name and Title		(B) Breakdown of W-2, 1099-MISC compensation, and/or 1099-NEC			(C) Retirement and other deferred compensation	(D) Nontaxable benefits	(E) Total of columns (B)(i)-(D)	(F) Compensation in column (B) reported as deferred on prior Form 990
(A) Name and Title		(i) Base compensation	(ii) Bonus & incentive compensation	(iii) Other reportable compensation	(C) Retirement and other deferred compensation	(D) Nontaxable benefits	(E) Total of columns (B)(i)-(D)
1JULIA BRODY PHD EXECUTIVE DIRECTOR/SENIOR	(i) (ii)	165,139 ------------- 0	0 ------------- 0	0 ------------- 0	10,100 ------------- 0	12,256 ------------- 0	187,495 ------------- 0	0 ------------- 0

Schedule J (Form 990) 2021

Page 3

Part III

Supplemental Information

Provide the information, explanation, or descriptions required for Part I, lines 1a, 1b, 3, 4a, 4b, 4c, 5a, 5b, 6a, 6b, 7, and 8, and for Part II. Also complete this part for any additional information.

Return Reference	Explanation

Schedule J (Form 990) 2021

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE M
(Form 990)

Department of the Treasury

Internal Revenue Service

Noncash Contributions

Complete if the organizations answered "Yes" on Form 990, Part IV, lines 29 or 30.
Right pointing arrow large image

Attach to Form 990.
Right pointing arrow large image

Go to www.irs.gov/Form990 for the latest information.

OMB No. 1545-0047

2021

Open to Public Inspection

Name of the organization

SILENT SPRING INSTITUTE INC

Employer identification number

04-3237106

Part I

Types of Property

	(a) Check if applicable	(b) Number of contributions or items contributed	(c) Noncash contribution amounts reported on Form 990, Part VIII, line 1g	(d) Method of determining noncash contribution amounts
1 Art—Works of art ....
2 Art—Historical treasures .
3 Art—Fractional interests ..
4 Books and publications ..
5 Clothing and household goods .......
6 Cars and other vehicles ..
7 Boats and planes ....
8 Intellectual property ...
9 Securities—Publicly traded .	X	3	250,201	FMV
10 Securities—Closely held stock .
11 Securities—Partnership, LLC, or trust interests ....
12 Securities—Miscellaneous ..
13 Qualified conservation contribution—Historic structures .....
14 Qualified conservation contribution—Other ...
15 Real estate—Residential .
16 Real estate—Commercial ..
17 Real estate—Other ...
18 Collectibles .....
19 Food inventory ...
20 Drugs and medical supplies .
21 Taxidermy ......
22 Historical artifacts ....
23 Scientific specimens ..
24 Archeological artifacts ...
25 Other ( )
26 Other ( )
27 Other ( )
28 Other ( )

Number of Forms 8283 received by the organization during the tax year for contributions
for which the organization completed Form 8283, Part IV, Donee Acknowledgement

Yes

30a

During the year, did the organization receive by contribution any property reported in Part I, lines 1 through 28, that it must hold for at least three years from the date of the initial contribution, and which isn't required to be used for exempt purposes for the entire holding period? ...................

30a

If "Yes," describe the arrangement in Part II.

Does the organization have a gift acceptance policy that requires the review of any nonstandard contributions?

32a

Does the organization hire or use third parties or related organizations to solicit, process, or sell noncash

contributions? ..........................

32a

If "Yes," describe in Part II.

If the organization didn't report an amount in column (c) for a type of property for which column (a) is checked,

describe in Part II.

For Paperwork Reduction Act Notice, see the Instructions for Form 990.

Cat. No. 51227J

Schedule M (Form 990) (2021)

Page 2

Part IISupplemental Information. Provide the information required by Part I, lines 30b, 32b, and 33, and whether the organization is reporting in Part I, column (b), the number of contributions, the number of items received, or a combination of both. Also complete this part for any additional information.

Return Reference	Explanation

Schedule M (Form 990) (2021)

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE O
(Form 990)

Department of the Treasury
Internal Revenue Service

Supplemental Information to Form 990 or 990-EZ

Complete to provide information for responses to specific questions on
Form 990 or 990-EZ or to provide any additional information.
MediumBullet

Attach to Form 990 or 990-EZ.
MediumBullet

Go to www.irs.gov/Form990 for the latest information.

OMB No. 1545-0047

2021

Open to Public
Inspection

Name of the organization

SILENT SPRING INSTITUTE INC

Employer identification number

04-3237106

Return Reference	Explanation
FORM 990, PART III, LINE 4A, PROGRAM SERVICE ACCOMPLISHMENTS:	FOUNDED IN 1994, SILENT SPRING INSTITUTE IS A LEADING SCIENTIFIC RESEARCH ORGANIZATION DEDICATED TO UNCOVERING THE LINKS BETWEEN CHEMICALS IN OUR EVERYDAY ENVIRONMENT AND WOMEN'S HEALTH, WITH A FOCUS ON BREAST CANCER PREVENTION. WITH NEARLY 160 PEER-REVIEWED SCIENTIFIC ARTICLES TO DATE, THE INSTITUTE'S RESEARCH SUPPORTS THE DEVELOPMENT OF SAFER CHEMICALS, MARKET SHIFT AWAY FROM TOXIC CHEMICALS IN PRODUCTS, AND MORE HEALTH-PROTECTIVE REGULATORY POLICIES. OUR ACCOMPLISHMENTS OVER THE PAST YEAR INCLUDE: CHEMICALS AND CANCER: CANCER AND THE ENVIRONMENT FORUMS: IN FEBRUARY, 2022, SILENT SPRING PARTNERED WITH DANA-FARBER CANCER INSTITUTE AND OTHER INSTITUTIONS AND ORGANIZATIONS TO HOST A SERIES OF THREE 2-HOUR WORKSHOPS TO HELP CLINICIANS BE PREPARED TO TALK ABOUT THE EFFECTS OF ENVIRONMENTAL EXPOSURES ON CANCER RISKS. OVER 600 CLINICIANS, COMMUNITY MEMBERS, SCIENTISTS, AND OTHERS REGISTERED FOR THE FORUMS, AND MORE THAN 250 CLINICIANS RECEIVED CONTINUING EDUCATION CREDITS (CECS). CANCER & ENVIRONMENT FORUMS 2022 REPRESENTED A HUGE SHIFT IN WHICH MAJOR CANCER RESEARCHERS CAME TOGETHER WITH SILENT SPRING TO JOIN FORCES IN CANCER PREVENTION EDUCATION. SAFER CHEMICALS PROGRAM: THE GOAL OF THE SAFER CHEMICALS PROGRAM IS TO SHIFT THE BURDEN SO THAT IT'S NO LONGER ON CONSUMERS TO REDUCE THEIR EXPOSURES TO TOXICS, BUT ON COMPANIES AND REGULATORS TO ENSURE THE CHEMICALS THAT MAKE THEIR WAY INTO CONSUMER PRODUCTS ARE SAFE. AS PART OF THE PROGRAM, WE PUBLISHED A NEW REVIEW IN CURRENT ENVIRONMENTAL HEALTH REPORTS, IN WHICH WE HIGHLIGHT THE LATEST SCIENCE LINKING EXPOSURE TO TOXIC CHEMICALS NOT ONLY WITH BREAST CANCER, BUT ALSO WITH EARLY BREAST DEVELOPMENT, PROBLEMS BREASTFEEDING, AND INCREASED BREAST DENSITY. THE REVIEW POINTS OUT THAT CURRENT METHODS USED BY REGULATORS TO SCREEN CHEMICALS FOR TOXIC EFFECTS DO NOT ADEQUATELY CONSIDER THEIR EFFECTS ON THE BREAST, ESPECIALLY DURING VULNERABLE TIME PERIODS. THE AUTHORS OUTLINE DIFFERENT WAYS IN WHICH REGULATORS COULD IMPROVE THEIR TESTING METHODS, AND THEREFORE THEIR ABILITY TO IDENTIFY CHEMICALS THAT HARM THE BREAST SO THAT THEY CAN BE PROPERLY REGULATED. PFAS RESEARCH: PFAS-REACH: TO ADDRESS HEALTH CONCERNS FROM EXPOSURE TO PFAS IN DRINKING WATER AND TO SUPPORT IMPACTED COMMUNITIES, WE LAUNCHED PFAS-REACH (RESEARCH, EDUCATION, AND ACTION FOR COMMUNITY HEALTH). FUNDED BY NIEHS, THE PROJECT IS LED BY SILENT SPRING IN COLLABORATION WITH NORTHEASTERN UNIVERSITY AND MICHIGAN STATE UNIVERSITY. WE CONTINUE TO RECRUIT PARTICIPANTS FOR OUR CHILDREN'S HEALTH STUDY, WHICH IS INVESTIGATING THE EFFECTS OF PFAS ON THE IMMUNE SYSTEMS OF CHILDREN IN HYANNIS, MA AND AT THE PEASE INTERNATIONAL TRADEPORT IN PORTSMOUTH, NH, TWO COMMUNITIES THAT HAVE BEEN EXPOSED TO CONTAMINATED DRINKING WATER. WE ALSO MAINTAIN THE PFAS EXCHANGE, AN ONLINE RESOURCE TO SUPPORT CONSUMERS, POLICYMAKERS, FIREFIGHTERS, AND CLINICIANS. IN JULY, THE NATIONAL ACADEMIES OF SCIENCES, ENGINEERING, AND MEDICINE (NASEM) RELEASED A REPORT THAT CALLED FOR EXPANDED PFAS TESTING FOR PEOPLE WITH A HISTORY OF ELEVATED EXPOSURES TO PFAS. THE GOAL OF THE REPORT IS TO INFORM CDC'S GUIDANCE FOR CLINICIANS. IN DEVELOPING ITS RECOMMENDATIONS, NASEM CITED OUR MEDICAL SCREENING GUIDANCE FOR CLINICIANS AND PFAS-IMPACTED COMMUNITIES AS A MODEL RESOURCE. MASSACHUSETTS PFAS & YOUR HEALTH STUDY: THE MASSACHUSETTS PFAS AND YOUR HEALTH STUDY IS A FIVE-YEAR PROJECT LED BY SILENT SPRING INSTITUTE IN COLLABORATION WITH HARVARD T.H. CHAN SCHOOL OF PUBLIC HEALTH AND EASTERN RESEARCH GROUP. WE ARE INVESTIGATING THE RELATIONSHIP BETWEEN PFAS CONTAMINANTS IN DRINKING WATER AND THEIR EFFECTS ON HUMAN HEALTH. FINDINGS FROM THE STUDY WILL INFORM POLICIES TO PROTECT PUBLIC HEALTH AND SUPPORT COMMUNITIES IN REDUCING THEIR EXPOSURES. IT IS ONE OF SEVEN PROJECTS FUNDED BY THE U.S. CENTERS FOR DISEASE CONTROL AND PREVENTION (CDC) AND THE AGENCY FOR TOXIC SUBSTANCES AND DISEASE REGISTRY (ATSDR) AS PART OF THE ATSDR MULTI-SITE HEALTH STUDY ON PFAS. THE STUDY IS FOCUSING ON TWO COMMUNITIES IN EASTERN MASSACHUSETTS; HYANNIS ON CAPE COD AND THE TOWN OF AYER, WHERE PUBLIC DRINKING WATER SUPPLIES HAVE BEEN CONTAMINATED BY PFAS FROM THE USE OF FIREFIGHTING FOAMS AT NEARBY FIRE TRAINING AREAS. WE CONTINUE TO RECRUIT PARTICIPANTS IN HYANNIS AND AYER. THE GOAL IS TO ENROLL 1000 ADULTS AND 300 CHILDREN. PFAS IN CHILDREN'S TEXTILES: SILENT SPRING PUBLISHED A STUDY THAT SHOWS MANY CHILDREN'S PRODUCTS, INCLUDING THOSE WITH "GREEN CERTIFICATIONS", CONTAIN HARMFUL PFAS THAT WERE NOT LISTED ON THE LABEL. THE FINDINGS DEMONSTRATE THE PERVASIVENESS OF PFAS IN PRODUCTS AND THE CHALLENGES FOR CONSUMERS TRYING TO AVOID TOXIC CHEMICALS IN THEIR EVERYDAY LIVES. REPORTING IN THE JOURNAL OF ENVIRONMENTAL SCIENCE & TECHNOLOGY, WE TESTED 93 DIFFERENT PRODUCTS OFTEN USED BY CHILDREN AND ADOLESCENTS. PFAS WERE DETECTED MOST FREQUENTLY IN UPHOLSTERED FURNITURE, CLOTHING, AND PILLOW PROTECTORS. THE FINDINGS HIGHLIGHT THE NEED FOR GREEN CERTIFIERS TO INCLUDE PFAS IN THEIR CRITERIA AND TO CONDUCT A MORE THOROUGH REVIEW OF THE PRODUCTS THEY CERTIFY. ENVIRONMENTAL JUSTICE: POWER STUDY: WE PARTNERED WITH RESILIENT SISTERHOOD PROJECT (RSP) ON A STUDY CALLED PRODUCT OPTIONS IN WOMEN-ENGAGED RESEARCH (POWER) TO HELP BLACK WOMEN REDUCE THEIR EXPOSURES TO HARMFUL INGREDIENTS IN PRODUCTS THAT AFFECT THEIR HEALTH AND CONTRIBUTE TO HEALTH DISPARITIES. THIS YEAR, WE PILOTED A PROJECT IN WHICH WE EDUCATED 10 BLACK WOMEN SOCIAL MEDIA INFLUENCERS WHO SHARED CONTENT ABOUT EDCS AND ENVIRONMENTAL HEALTH WITH THEIR AUDIENCES. OVER 100,000 OF THEIR FOLLOWERS LIKED OR "SHARED" THE POSTS, ULTIMATELY REACHING MORE THAN 750,000 ACCOUNTS. BASED ON FOLLOW UP SURVEYS WITH FOLLOWERS OF THESE 10 INFLUENCERS, RESULTS SHOW THAT OUR PROGRAM: 1) INCREASED AWARENESS ABOUT CHEMICALS IN CONSUMER PRODUCTS THAT MAY INFLUENCE HEALTH, 2) INCREASED CONCERN ABOUT CHEMICALS IN CONSUMER PRODUCTS, AND 3) INCREASED MOTIVATION TO TAKE STEPS TO LIMIT EXPOSURE. ROC HOME (ROCHESTER HOME-BASED OPPORTUNITIES TO MINIMIZE ENVIRONMENTAL EXPOSURES): SILENT SPRING, THE UNIVERSITY OF ROCHESTER, THE NATIONAL CENTER FOR HEALTHY HOUSING, AND THE CITY OF ROCHESTER ARE PARTNERS IN A STUDY ON THE IMPACTS OF LEAD ABATEMENT PROGRAMS ON EXPOSURES TO HARMFUL ENVIRONMENTAL CHEMICALS IN THE HOME. WE ARE WORKING WITH 100 LOW-INCOME, OWNER-OCCUPANTS WITH YOUNG CHILDREN IN ROCHESTER, NY. WE ARE IN OUR SECOND YEAR OF THIS PROJECT FOCUSED ON MEASURING EXPOSURES TO PESTICIDES, PHTHALATES, AND FLAME RETARDANTS, AS WELL AS ALLERGENS AND LEAD. RESEARCHERS EXPECT THE FINDINGS WILL INFORM FUTURE HUD GRANT PROGRAMS, POLICIES, AND PRACTICES TO BETTER PROTECT CHILDREN'S ENVIRONMENTAL HEALTH. TAKING STOCK: WE ARE EXAMINING RACIAL/ETHNIC DIFFERENCES IN THE USE OF PERSONAL CARE AND CLEANING PRODUCTS AMONG WOMEN IN CALIFORNIA; CHARACTERIZING PERCEPTIONS, ACCESSIBILITY, AND USE OF PERSONAL CARE AND CLEANING PRODUCTS AMONG BLACK AND LATINA WOMEN IN SOUTH LOS ANGELES; AND ASSESSING THE CHEMICAL CONTENT OF SELECTED CONSUMER PRODUCTS USED BY BLACK AND LATINA WOMEN. WE ARE CURRENTLY ANALYZING BIOMONITORING AND PRODUCT USE DATA COLLECTED BY 70 BLACK AND LATINA WOMEN IN SOUTH LOS ANGELES. FINDINGS FROM THE STUDY WILL HELP COMMUNITIES DEVELOP GUIDANCE FOR WOMEN ON HOW TO PROTECT THEMSELVES FROM HARMFUL INGREDIENTS IN EVERYDAY PRODUCTS, AS WELL AS INFORM POLICIES AND THE DEVELOPMENT OF SAFER PRODUCTS. OCCUPATIONAL RISK FACTORS FOR BREAST CANCER AMONG IMMIGRANT WOMEN: WE ARE PARTNERING WITH HEALTHCARE WORKERS AT THE UNIVERSITY OF CALIFORNIA, SAN FRANCISCO MEDICAL CENTER AND SCIENTISTS AT THE UC BERKELEY TO UNDERSTAND OCCUPATIONAL EXPOSURES THAT PUT IMMIGRANT WOMEN WORKERS IN THIS SECTOR AT HEIGHTENED RISK OF DISEASE. IMMIGRANTS ACCOUNT FOR OVER A THIRD OF HEALTH CARE WORKERS IN CALIFORNIA, YET ARE AN UNDERSTUDIED GROUP DESPITE THEIR SIGNIFICANT RISK OF EXPOSURES TO POTENTIAL BREAST CARCINOGENS AND OTHER CHEMICALS OF CONCERN. TECHNOLOGY & COMMUNICATIONS: SILENT SPRING CONTINUES TO PROVIDE UNIQUE LEADERSHIP IN THE DEVELOPMENT OF DIGITAL TOOLS TO INCREASE ENVIRONMENTAL HEALTH LITERACY AND THE PUBLIC'S ENGAGEMENT IN REDUCING EXPOSURES TO HARMFUL CHEMICALS IN OUR EVERY DAY LIVES. OUR WORK WAS ALSO MENTIONED OR QUOTED IN 154 NEWS STORIES, INCLUDING ABC NEWS, THE GUARDIAN, THE HILL, NPR, VOX, BLOOMBERG, THE BOSTON GLOBE, AND THE HBO-DOCUMENTARY SERIES NOT SO PRETTY.
FORM 990, PART III, LINE 4A, PROGRAM SERVICE ACCOMPLISHMENTS CONTINUED:	DETOX ME APP: OUR POPULAR DETOX ME APP IS BEING USED IN MULTIPLE RESEARCH STUDIES AND PROJECTS. THE APP HAS OVER 270 TIPS FOR REDUCING TOXIC EXPOSURES, INCLUDING POLICY-LEVEL ACTIONS AND LINKS TO ADVOCACY, HAS REACHED MORE THAN 337,000 DOWNLOADS TO DATE. WE ARE USING DETOX ME IN THE PRECONCEPTION INTERVENTION PROGRAM FOR HEALTHY REPRODUCTION (PIPER) STUDY WITH HARVARD UNIVERSITY. THIS PILOT PROGRAM IS RECRUITING 30 COUPLES ATTEMPTING PREGNANCY THROUGH A BOSTON FERTILITY CLINIC. THE COUPLES WILL USE THE APP TO REDUCE EXPOSURES TO PHTHALATES AND PHENOLS DURING THE PRECONCEPTION PERIOD WITH THE GOAL OF IMPROVING OUTCOMES. IN ANOTHER COLLABORATION WITH HARVARD, WE ARE USING DETOX ME TO REDUCE EXPOSURES TO INDOOR AIR POLLUTION IN BOSTON HOMES. THE GOAL OF THE PROJECT IS TO BETTER UNDERSTAND HOW REAL-TIME AIR MONITORS AND EDUCATIONAL MODELS CAN BE USED TO PROMOTE PERSONAL MITIGATION. PART OF THE STUDY WILL ASSESS WHETHER USING DETOX ME ALTERS BEHAVIORS IN A WAY THAT IMPROVES INDOOR AIR QUALITY. REPORT BACK, SHARING CHEMICAL EXPOSURE RESULTS WITH STUDY PARTICIPANTS: AT SILENT SPRING, WE BELIEVE THAT PARTICIPANTS IN ENVIRONMENTAL HEALTH STUDIES HAVE A RIGHT TO KNOW THEIR PERSONAL EXPOSURE RESULTS, AND THAT EVEN UNCERTAIN RESULTS CAN PROVE USEFUL AND EMPOWERING. AS A PIONEER OF "REPORT-BACK AND A LEADER IN DEVELOPING INNOVATIVE METHODS FOR SHARING CHEMICAL EXPOSURE AND BIOMONITORING DATA WITH STUDY PARTICIPANTS, WE CONTINUE TO INVESTIGATE THE RELATIONSHIP BETWEEN RECEIVING RESULTS AND A PARTICIPANT'S PLANS TO LEARN ABOUT ENVIRONMENTAL CHEMICALS, SHARE INFORMATION, AND TAKE ACTION INDIVIDUALLY AND COLLECTIVELY TO REDUCE EXPOSURES.
FORM 990, PART VI, SECTION B, LINE 11B	A COPY OF THE FORM 990 IS DISTRIBUTED TO ALL BOARD MEMBERS FOR REVIEW AND APPROVAL BEFORE IT IS FILED.
FORM 990, PART VI, SECTION B, LINE 12C	SILENT SPRING INSTITUTE ANNUALLY DISTRIBUTES A CONFLICT OF INTEREST QUESTIONNAIRE TO BE COMPLETED AND RETURNED BY ALL KEY EMPLOYEES AND BOARD OF DIRECTOR MEMBERS.
FORM 990, PART VI, SECTION B, LINE 15	THE EXECUTIVE DIRECTOR'S SALARY IS REVIEWED AND APPROVED ANNUALLY BY THE BOARD OF DIRECTORS AT AN EXECUTIVE SESSION MEETING. SALARIES OF EXECUTIVE DIRECTORS AT COMPARABLE AGENCIES ARE USED TO DETERMINE THE EXECUTIVE DIRECTOR'S SALARY.
FORM 990, PART VI, SECTION C, LINE 19	GOVERNING DOCUMENTS, POLICIES AND STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST.
FORM 990, PART IX, LINE 11G	CONTRACTED SERVICES: PROGRAM SERVICE EXPENSES 23,742. MANAGEMENT AND GENERAL EXPENSES 10,149. FUNDRAISING EXPENSES 14,745. TOTAL EXPENSES 48,636. RECRUITMENT: PROGRAM SERVICE EXPENSES 1,245. MANAGEMENT AND GENERAL EXPENSES 959. FUNDRAISING EXPENSES 704. TOTAL EXPENSES 2,908.
FORM 990, PART XII, LINE 2C:	THE ORGANIZATION HAS A COMMITTEE THAT ASSUMES RESPONSIBILITY FOR OVERSIGHT FOR THE AUDIT OF ITS FINANCIAL STATEMENTS AND SELECTION OF AN INDEPENDENT ACCOUNTANT. THIS PROCESS HAS NOT CHANGED DURING THE YEAR.

For Paperwork Reduction Act Notice, see the Instructions for Form 990 or 990-EZ.

Cat. No. 51056K

Schedule O (Form 990) 2021

Additional Data

Software ID:
Software Version:

		Prior Year	Current Year
8	Contributions and grants (Part VIII, line 1h) .........	4,560,422	4,726,692
9	Program service revenue (Part VIII, line 2g) .........	0	0
10	Investment income (Part VIII, column (A), lines 3, 4, and 7d ) ....	4,293	2,943
11	Other revenue (Part VIII, column (A), lines 5, 6d, 8c, 9c, 10c, and 11e)	2,550	2,082
12	Total revenue—add lines 8 through 11 (must equal Part VIII, column (A), line 12)	4,567,265	4,731,717
13	Grants and similar amounts paid (Part IX, column (A), lines 1–3 )...	0	0
14	Benefits paid to or for members (Part IX, column (A), line 4).....	0	0
15	Salaries, other compensation, employee benefits (Part IX, column (A), lines 5–10)	2,203,419	2,334,137
16a	Professional fundraising fees (Part IX, column (A), line 11e) .....	41,314	10,000
b	Total fundraising expenses (Part IX, column (D), line 25) 311,828
17	Other expenses (Part IX, column (A), lines 11a–11d, 11f–24e)....	1,248,573	1,804,700
18	Total expenses. Add lines 13–17 (must equal Part IX, column (A), line 25)	3,493,306	4,148,837
19	Revenue less expenses. Subtract line 18 from line 12.......	1,073,959	582,880
		Beginning of Current Year	End of Year
20	Total assets (Part X, line 16).............	4,263,030	4,846,950
21	Total liabilities (Part X, line 26).............	519,520	520,560
22	Net assets or fund balances. Subtract line 21 from line 20.....	3,743,510	4,326,390

Sign Here

	Signature of officer	Date

	Type or print name and title


4a	(Code: ) (Expenses $ 3,446,499 including grants of $ ) (Revenue $ 750 )
	SEE SCHEDULE O

4b	(Code: ) (Expenses $ including grants of $ ) (Revenue $ )
	SEE SCHEDULE O

4c	(Code: ) (Expenses $ including grants of $ ) (Revenue $ )












4d	Other program services (Describe in Schedule O.)
	(Expenses $ including grants of $ ) (Revenue $ )
4e	Total program service expenses3,446,499

1b	Sub-Total................
c	Total from continuation sheets to Part VII, Section A....
d	Total (add lines 1b and 1c)...........	735,140	0	110,642

(A) Name and business address	(B) Description of services	(C) Compensation





2 Total number of independent contractors (including but not limited to those listed above) who received more than $100,000 of compensation from the organization 0

1	Briefly describe the organization’s mission or most significant activities: ADVANCING SCIENCE ON THE INFLUENCE OF ENVIRONMENTAL CHEMICALS ON WOMEN'S HEALTH, WITH A FOCUS ON BREAST CANCER PREVENTION.
2	Check this box
3	Number of voting members of the governing body (Part VI, line 1a) ........	3	10
4	Number of independent voting members of the governing body (Part VI, line 1b) .....	4	10
5	Total number of individuals employed in calendar year 2021 (Part V, line 2a) ......	5	32
6	Total number of volunteers (estimate if necessary) .............	6	18
7a	Total unrelated business revenue from Part VIII, column (C), line 12 ........	7a	0
b	Net unrelated business taxable income from Form 990-T, Part I, line 11 .........	7b	0

1a	Federated campaigns..		1a
b	Membership dues..		1b
c	Fundraising events..		1c	454,364
d	Related organizations		1d
e	Government grants (contributions)		1e	2,399,881

f	All other contributions, gifts, grants, and similar amounts not included above		1f	1,872,447

g	Noncash contributions included in lines 1a - 1f:$		1g	250,201

h Total. Add lines 1a-1f.......		4,726,692

		Business Code
2a
b
c
d
e
f	All other program service revenue.
g	Total. Add lines 2a–2f .....

3 Investment income (including dividends, interest, and othersimilar amounts) ......			2,943			2,943
4 Income from investment of tax-exempt bond proceeds
5 Royalties...........
		(ii) Personal	(i) Real
6a	Gross rents			6a
b	Less: rental expenses			6b
c	Rental income or (loss)			6c
d	Net rental income or (loss).......
		(ii) Other	(i) Securities
7a	Gross amount from sales of assets other than inventory			7a
b	Less: cost or other basis and sales expenses			7b
c	Gain or (loss)			7c
d	Net gain or (loss).........
8a	Gross income from fundraising events (not including $ 454,364of contributions reported on line 1c). See Part IV, line 18 ....
			8a	9,922
b	Less: direct expenses ...		8b	9,922
c	Net income or (loss) from fundraising events..			0
9a	Gross income from gaming activities. See Part IV, line 19 ...
			9a
b	Less: direct expenses ...		9b
c	Net income or (loss) from gaming activities..
10a	Gross sales of inventory, less returns and allowances ..
			10a
b	Less: cost of goods sold ..		10b
c	Net income or (loss) from sales of inventory..
Business Code			Miscellaneous Revenue
11a	OTHER REVENUE		900099	1,332			1,332
b	HONORARIUMS		541700	750	750
c
d	All other revenue ....
e	Total. Add lines 11a–11d ......			2,082
12	Total revenue. See instructions.....			4,731,717	750	0	4,275

1	Grants and other assistance to domestic organizations and domestic governments. See Part IV, line 21 ....
2	Grants and other assistance to domestic individuals. See Part IV, line 22 ...........
3	Grants and other assistance to foreign organizations, foreign governments, and foreign individuals. See Part IV, lines 15 and 16. .............
4	Benefits paid to or for members .......
5	Compensation of current officers, directors, trustees, and key employees ...........	204,637	153,477	51,160
6	Compensation not included above, to disqualified persons (as defined under section 4958(f)(1)) and persons described in section 4958(c)(3)(B) .........
7	Other salaries and wages........	1,699,825	1,367,391	209,003	123,431
8	Pension plan accruals and contributions (include section 401(k) and 403(b) employer contributions) ....	91,316	75,033	9,133	7,150
9	Other employee benefits .......	199,987	163,623	21,476	14,888
10	Payroll taxes ...........	138,372	112,647	16,039	9,686
11	Fees for services (non-employees):
a	Management ......
b	Legal .........	1,800	1,800
c	Accounting ...........	36,650		36,650
d	Lobbying ...........
e	Professional fundraising services. See Part IV, line 17	10,000			10,000
f	Investment management fees ......
g	Other (If line 11g amount exceeds 10% of line 25, column (A) amount, list line 11g expenses on Schedule O)	51,544	24,987	11,108	15,449
12	Advertising and promotion ....
13	Office expenses .......	25,767	20,544	526	4,697
14	Information technology ......
15	Royalties ..
16	Occupancy ...........	198,920	168,675	17,791	12,454
17	Travel ............	15,408	14,491	62	855
18	Payments of travel or entertainment expenses for any federal, state, or local public officials .
19	Conferences, conventions, and meetings ....	12,426	8,139		4,287
20	Interest ...........
21	Payments to affiliates .......
22	Depreciation, depletion, and amortization ..	34,525	28,656	3,452	2,417
23	Insurance ...	12,677	10,522	1,268	887
24	Other expenses. Itemize expenses not covered above (List miscellaneous expenses in line 24e. If line 24e amount exceeds 10% of line 25, column (A) amount, list line 24e expenses on Schedule O.)
a	SUBCONTRACT RESEARCH &	1,227,110	1,182,022	10,235	34,853
b	PROGRAM SUPPLIES	52,508	43,767	423	8,318
c	EVENTS	44,248			44,248
d	EQUIPMENT & MAINTENANCE	30,770	25,964	1,935	2,871
e	All other expenses	60,347	44,761	249	15,337
25	Total functional expenses. Add lines 1 through 24e	4,148,837	3,446,499	390,510	311,828
26	Joint costs. Complete this line only if the organization reported in column (B) joint costs from a combined educational campaign and fundraising solicitation. Check here if following SOP 98-2 (ASC 958-720).

1	Cash–non-interest-bearing ........			9,128	1	2,889
2	Savings and temporary cash investments .........			2,852,012	2	3,726,192
3	Pledges and grants receivable, net ......			1,291,558	3	972,244
4	Accounts receivable, net .............				4
5	Loans and other receivables from any current or former officer, director, trustee, key employee, creator or founder, substantial contributor, or 35% controlled entity or family member of any of these persons .......
					5
6	Loans and other receivables from other disqualified persons (as defined under section 4958(f)(1)), and persons described in section 4958(c)(3)(B) ...
					6
7	Notes and loans receivable, net ...........				7
8	Inventories for sale or use ............				8
9	Prepaid expenses and deferred charges ......			57,903	9	63,533
10a	Land, buildings, and equipment: cost or other basis. Complete Part VI of Schedule D	10a	241,810
b	Less: accumulated depreciation	10b	159,718	52,429	10c	82,092
11	Investments—publicly traded securities .				11
12	Investments—other securities. See Part IV, line 11 .....				12
13	Investments—program-related. See Part IV, line 11 ..				13
14	Intangible assets ...............				14
15	Other assets. See Part IV, line 11 ...........				15
16	Total assets. Add lines 1 through 15 (must equal line 33)...			4,263,030	16	4,846,950

17	Accounts payable and accrued expenses .....	495,862	17	503,404
18	Grants payable ...		18
19	Deferred revenue .........	23,658	19	17,156
20	Tax-exempt bond liabilities .........		20
21	Escrow or custodial account liability. Complete Part IV of Schedule D		21
22	Loans and other payables to any current or former officer, director, trustee, key employee, creator or founder, substantial contributor, or 35% controlled entity or family member of any of these persons .........
			22
23	Secured mortgages and notes payable to unrelated third parties ..		23
24	Unsecured notes and loans payable to unrelated third parties ..		24
25	Other liabilities (including federal income tax, payables to related third parties, and other liabilities not included on lines 17 - 24). Complete Part X of Schedule D		25
26	Total liabilities. Add lines 17 through 25..	519,520	26	520,560

	Organizations that follow FASB ASC 958, check here and complete lines 27, 28, 32, and 33.
27	Net assets without donor restrictions ..........	2,753,441	27	3,721,671
28	Net assets with donor restrictions ...........	990,069	28	604,719
	Organizations that do not follow FASB ASC 958, check here and complete lines 29 through 33.
29	Capital stock or trust principal, or current funds .....		29
30	Paid-in or capital surplus, or land, building or equipment fund ...		30
31	Retained earnings, endowment, accumulated income, or other funds		31
32	Total net assets or fund balances ...........	3,743,510	32	4,326,390
33	Total liabilities and net assets/fund balances ........	4,263,030	33	4,846,950