Systematic Targeting Of MicroPlastics (STOMP)

April 20, 2026 - Amendment 1 to STOMP ISO ARPA-H-SOL-26-152

This amendment corrects the Figure number on Page 11 and incorporates Figure 6 on Page 15.

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All questions submitted to the ISO will be compiled and addressed. Responses will be posted to the STOMP Frequently Asked Questions (FAQ) page. Potential proposers are encouraged to monitor the FAQ page regularly for the latest information and updates: https://arpa-h.gov/explore-funding/programs/stomp/faqs

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The Advanced Research Projects Agency for Health (ARPA-H) is posting this Innovative Solutions Opening (ISO) in support of the Systematic Targeting Of MicroPlastics (STOMP) Program. ARPA-H anticipates multiple Other Transaction (OT) Agreements will result from this announcement. Interested parties are invited to review the STOMP_ISO_ARPA-H-SOL-26-152 and assciated attachments.

Additionally, proposers are encouraged to review the separate Special Notice, ARPA-H-SN-26-150, for information regarding the STOMP Proposers’ Day. Special Notice (SN), ARPA-H-SN-26-150, is an independent announcement and is not attached to this ISO announcement.