# US Section 106 historic preservation regulatory changes > Live situation record from CLSTR: https://clstr.news/situations/us-section-106-historic-preservation-regulatory-changes > Updated: 2026-08-31T20:32:33.000Z. Sources: 14. Developments: 2. The Advisory Council on Historic Preservation (ACHP) approved revisions to Section 106 of the National Historic Preservation Act on July 24. These changes aim to reduce public input and weaken protections for historic sites during federal projects. In response, a coalition of over 600 organizations—including Tribal Nations, museums, and conservation groups—submitted an open letter and brief to Congress. The coalition is urging lawmakers to protect Section 106, which mandates that federal agencies evaluate the impact of federally funded or approved projects on historic sites and consult with local officials, the public, and Tribal Nations. Signatories to the movement include the U.S. Committee of the Blue Shield. Advocates argue that the proposed regulatory rewrites and potential statutory rollbacks would diminish protections for cultural property by limiting mandatory consultation requirements with Tribal Nations and local officials. ## Timeline ### 2026-08-31: U.S. heritage groups petition Congress to protect Section 106 Over 600 organizations, including Tribal Nations, have petitioned Congress to protect Section 106 of the National Historic Preservation Act against proposed regulatory changes. 14 sources. https://clstr.news/cluster/coalition-of-600-organizations-urges-congress-to-protect-section-106 ### 2026-08-06: US Section 106 Changes Threaten Historic Preservation Amid 250th Independence Celebrations ACHP approved revisions to Section 106 that could weaken historic preservation, while a House Democratic report alleges Freedom 250 misdirected millions meant for the US 250th independence celebrations. 5 sources. https://clstr.news/cluster/us-section-106-changes-threaten-historic-preservation-amid-250th-independence-celebrations --- Cite as: US Section 106 historic preservation regulatory changes. CLSTR, https://clstr.news/situations/us-section-106-historic-preservation-regulatory-changes