SCHEDULE O (Form 990) (Rev. January 2025) 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.
Attach to Form 990 or 990-EZ.
Go to www.irs.gov/Form990 for instructions and the latest information.
OMB No. 1545-0047
Open to Public Inspection
Name of the organization
SOCIETY FOR MASS SPECTROMETRY IMAGING
Employer identification number
81-3766415
Return Reference
Explanation
Part I, Line 16
This expense was made in payment of our international conference, IMSIS 3.
For Paperwork Reduction Act Notice, see the Instructions for Form 990 or 990-EZ.