Trump-appointed members of the federal Advisory Council on Historic Preservation voted 16–5 on July 24, 2026, to advance proposed changes to rules governing Section 106 review, the federal process that slows or halts infrastructure projects when they may affect historic sites or artifacts. Section 106 review is a mandatory step under federal law that requires agencies to consider the impact of their projects on historic properties, involve Native tribes in decisions, and allow public input before proceeding.
The proposal marks a significant shift in how the federal government balances development against cultural preservation. Trump appoints 20 of the council's 24 seats, giving his appointees control of the body. The rule changes now move to inter-agency review and will eventually appear in the Federal Register for public comment, but the outcome is largely predetermined by the council's composition.
Table of Contents
- What Would the New Rules Actually Change?
- Why Is the Administration Pushing This?
- Who Gets Affected—and How?
- What's the Timeline?
What Would the New Rules Actually Change?
The proposed changes would make tribal consultation and public participation discretionary rather than mandatory, meaning federal agencies could skip these steps if they chose to. They would also narrow protections to focus only on properties deemed historically "significant," potentially excluding many smaller or locally important sites from any review at all.
The rewrite replaces the current step-by-step review process with a system where agencies conduct their own assessments and file certified reports instead of working through a structured multi-party review. This removes independent oversight and condenses timelines that currently span months or years into weeks.
Why Is the Administration Pushing This?
The Trump administration argues that traditional Section 106 review creates unnecessary delays for federal infrastructure projects. According to this rationale, the current process is cumbersome, expensive, and slows economic development without meaningful benefit.
The administration contends that a streamlined approach would allow critical infrastructure to move forward faster. Critics counter that the rollbacks appear designed to target specific Trump initiatives, including a proposed Triumphal Arch monument in Washington, D.C. They argue the changes weaken protections for historically significant sites across the country to serve one administration's agenda, rather than solving a genuine problem with the existing system.
Who Gets Affected—and How?
The changes affect federal projects nationwide, weakening protections for historic sites and archaeological resources across all states, not just Washington, D.C. This includes highway expansions, dam projects, pipeline routes, military installations, and any other federal undertaking that currently requires Section 106 review. Native American tribes lose mandatory consultation rights, and communities have no guaranteed voice in decisions affecting their local heritage.
Development companies and federal agencies benefit from faster permitting and lower compliance costs. Preservationists, archaeologists, and tribes lose leverage to protect sites or demand project modifications. State historic preservation offices would have reduced authority to challenge federal agency decisions.
What's the Timeline?
The proposed rule changes now proceed to inter-agency review before publication in the Federal Register, with an anticipated 30-day public comment period. Inter-agency review typically takes weeks to months; the Federal Register comment period is legally mandated at 30 days minimum but could extend longer if challenges arise.
After comment closes, the administration would issue a final rule, likely without substantial changes given the council's solid vote. The proposed rules are not yet final, so readers concerned about specific projects should monitor the Federal Register for the exact publication date and use the comment period to submit objections.