2026 07 23__Amendment 00004 80MSFC26R0002 Amendment 00003 to Amendment 00004 Appendix C Change Log.pdf

This is an amendment summary document that tracks substantive changes made to solicitation 80MSFC26R0002 between two sequential amendments posted to SAM.gov.

The document identifies two significant changes implemented between Amendment 00003 (posted July 6, 2026) and Amendment 00004 (posted July 23, 2026). The first change involves an update to the Excel Pricing Model in Attachment L-1, specifically modifying the "C-Prod Factor" performance period dates released within Amendment 00003 to reflect updated period of performance dates. The second change updates Attachment J-16, which contains wage determinations, revising the referenced wage determination revision numbers and published dates from December 3, 2025 to May 12, 2026, with corresponding updated revision numbers applied. The document explicitly notes that grammatical, typographical, and other non-substantive corrections throughout the RFP are not included in this summary.