2026 07 23__Amendment 00004 80MSFC26R0002 Cover Letter with Appendix A.pdf

Attachment J-16 provides the wage determinations that are to be incorporated into the contract;

however, all of the wage determinations have updates that were published in May 2026. Will the Government please confirm that the wage determinations provided in Attachment J-16 are the correct versions to be used?

Wage Determinations are updated and provided with the release of Amendment 00004.

Would the Government please verify that the Period of Performance is: 01/18/2027- 05/17/2032, with an optional ordering period of 05/18/2032 - 05/17/2035 and an Option to Extend Services 05/18/2035 - 11/17/2035 and update the documents to reflect correct dates?

Attachment L-1 Excel Pricing Model is updated and provided with the release of Amendment 0004.

Can you please confirm whether Year 1 in the Excel Pricing Model should begin on May 18, 2027, to align with the dates in RFP Section B, and whether all subsequent contract years should be adjusted accordingly? Section B of the RFP identifies the contract Base Period as beginning on May 18, 2027.

However, the “C - Prod Factor” tab of the Excel Pricing Model shows Year 1 beginning on July 1, 2027.

Attachment L-1 Excel Pricing Model is updated and provided with the release of Amendment 0004.

The originally issued cover letter identified the Source Selection Authority (SSA) and voting members. Please confirm that the identified SSA and voting members remain unchanged or provide an updated list if revisions have occurred.

The previously identified SSA and voting members remain unchanged.

Amendment 00003 references firm-fixed-price task orders under the "skills augmentation" portion of the scope. Please clarify the Government's intended definition and of "skills augmentation".

Description of skills augmentation (as compared to the other scope area of end-item deliverables) is included in Section 1.0 of PWS Attachment J-1.

Section B clause MSFC 52.216-91 Supplies and/or Services to be Provided and Type of Contract provides additional description of skills augmentation (paragraph c) versus end-item deliverables (paragraph d).

Offerors previously provided notification of intent to submit prior to Amendment 00003. Please confirm whether Offerors must resubmit their notification of intent or whether previously submitted notifications remain valid.

The previous submission remains valid.

Please confirm whether Offerors who previously coordinated the submission of a test file must coordinate an additional test file submission.

The previous submission remains valid.

The referenced proposal submission link is currently not functioning. Please confirm that the link has been restored or provide an updated proposal submission link.

The proposal submission link has been restored.

A summary of Amendment 00004 changes is captured in the 2026 07 23__Amendment 00004 80MSFC26R0002 SF30 and Continuation Page.pdf and fully described in the 2026 07 23__ 80MSFC26R0002 Amendment 00003 to Amendment 00004 Appendix C Change Log.pdf.

Interested parties are encouraged to consider these changes carefully and review the ESSCA II RFP in its entirety.

The Government has provided 80MSFC26R0002 Amendment 00004 Proposal Submission Reminders as Appendix A to this letter. All potential Offerors are encouraged to review Appendix A.

This RFP, as amended, does not commit NASA MSFC to pay any proposal preparation costs, nor does it obligate NASA MSFC to procure or contract for these services. This request is not an authorization to proceed and does not authorize payment for any charges incurred by the offeror for performing any of the work called for in this solicitation.

A “Blackout Notice” was issued to NASA personnel on January 30, 2026, and remains in effect.

Inquiries/communications pertaining to this acquisition must be directed only to the Contracting Officer listed below.

NASA appreciates your continued interest in the ESSCA II acquisition.

Casey Hardy

Contracting Officer

Appendix A Proposal Submission Reminders

As a result of this amendment, all potential Offerors, inclusive of those that previously submitted proposals in response to the solicitation, are required to submit a full proposal in accordance with the solicitation instructions to be considered for award.

Proposal Submission Reminders

Proposals submitted in response to this solicitation shall be due no later than August 6, 2026, 2:00 p.m. Central Time (CT). All proposals must provide a validity date of at least 365 days from this date.

All Offerors are required to acknowledge Amendments 00001, 00002, 00003 and 0004 in accordance with Box 14 of the SF30, demonstrated by submission of a signed version of each amendment SF30 with Volume IV – Contract.

Proposals for this solicitation are required to be submitted through NASA’s Enterprise File Sharing and Sync Box (EFSS Box), a FedRAMP Moderate certified platform. Potential Offerors, especially those that have not previously submitted a proposal utilizing NASA’s EFSS Box, are encouraged to review the solicitation instruction entitled “Electronic Proposal Delivery - Proposal Marking and Delivery Through NASA’s EFSS Box,” which provides detailed instructions related to the submission of a proposal via EFSS Box. Offerors are encouraged to check with their corporate IT staff to determine if there are firewall restrictions that would need to be addressed prior to the submission of proposal files through NASA’s EFSS Box.

Note for Offerors that Previously Submitted Proposals

Offerors who previously coordinated external submission of Attachment L-2, Past Performance Questionnaire to the Government may elect not to re-initiate completion of those questionnaires, assuming the Offeror’s past performance referenced contracts remain unchanged from its initial proposal submission. If an Offeror elects to coordinate resubmission of Past Performance Questionnaires or coordinate submission of Past Performance Questionnaires for new referenced contracts, these documents must be submitted by the proposal submission due date, August 6, 2026, 2:00 p.m. Central Time (CT).