17 JAN: The POSEIDON notice is updated to provide Amendment 3, which allows eligible entities to request an extension of up to 3 business days due to impacts from the wildfires in California. No other changes have been made to the terms and conditions of the solicitation.

9 DEC:  The POSEIDON notice is updated as follows: 

1. The POSEIDON ISO is amended with all changes written in green. The substantive changes relate to specifying the POSEIDON Program is for adults (i.e., persons 18 and older), to emphasize the commercial entity requirements as those of the Commercialization Partner, and to include a sample Letter of Intent (LOI) for use by proposers intending to negotiate a Multi-Party Teaming Agreement (MPTA) pre-award.
2. Eligible proposers are reminded conforming full proposal submissions will include all elements described in Appendix C of the ISO (e.g., an accurately completed Appendix A is mandatory for conformance);
3. Proposers are encouraged to continue checking the Questions and Answers (i.e., FAQs) at the link provided below.
4. The full proposal due date, for eligible proposers, remains 22 JAN 2025 at 5:00pm EST.

19 NOV:  The POSEIDON notice is updated as follows: 

1. Four attachments are uploaded to support submission of full proposals from eligible proposers. Eligible proposers are those who submitted a conforming Solution Summary and received feedback of either Encourage or Discourage. The four attachments are mandatory and are the Cost Proposal Spreadsheet, Solution Pitch Deck format, SOW format, and Schedule and Milestones format.
2. The required template/format for Volume III Administrative and Policy Requirements Submission is the format provided in Appendix C (i.e., there is no separate template/attachment).
3. Eligible proposers are reminded that conforming full proposal submissions will include all elements described in Appendix C of the ISO (e.g., an accurately completed Appendix A is mandatory for conformance).
4. Full proposals, due 22 JAN 2025 at 5:00pm EST, shall assume a project start date of 15 August 2025. This date will likely be revised prior to award based on the actual timeline required for evaluation, selection, and negotiations required for award(s).
5. Eligible proposers should continue to use the POSEIDON@arpa-h.gov email box for questions. The Government will post broadly applicable answers to the POSEIDON FAQs at the link below. Questions that are specific to a particular solution/proposer will be addressed directly via email.
6. ARPA-H does not anticipate responding to ineligible proposers; in terms of full proposal Solution submissions and/or questions to the POSEIDON email box. As a reminder, eligible proposers are those who submitted a Conforming Solution Summary and received feedback in the form of either Encourage or Discourage. For interested entities who are not eligible, please consider one of ARPA-H’s other funding opportunities at https://arpa-h.gov/engage-and-transition/open-funding-opportunities as a way to work with ARPA-H to accelerate better health outcomes for all.

04 NOV:  The POSEIDON ISO is amended to extend the closing date of the solicitation from 12:00pm EST to 3:00pm EST. No other changes have been made to the ISO.

01 NOV: The POSEIDON posting is updated to provide two additional proposer inquiries with responses. No changes have been made to the ISO. Further, proposers are again encouraged to review all POSEIDON frequently asked questions (FAQs) at the link below if they have a question.

Question 3:  Does the DHHS Salary Cap apply to ARPA-H proposals?

Response 1:  The DHHS Salary Cap applies to proposals/awards received in response to ARPA-H solicitations in the same circumstances where it would apply to other DHHS solicitations/awards. The Government does not anticipate the salary cap will apply to proposals/awards received in response to the POSEIDON ISO. This is based on the anticipated contract types (e.g., Fixed Price) and the information requested from proposers (i.e., the Government does not anticipate requesting direct labor rates as part of the Cost Volume in full proposals).

Question 4:  Who needs to submit a Solution?  Is it the PI?

Response 4:  There are no requirements related to who registers in the ARPA-H Solution Submission System to upload a Solution.

15 OCT: The POSEIDON posting is updated to provide an optional Solution Summary submission aid and two proposer inquiries with responses. No changes have been made to the ISO. 

Question 1:  We are a proposer outside of the United States and do not have an address in the USA, so we do not have zip code or state for the dropdown menu.  How should we enter our address