To prohibit the District of Columbia from requiring tribunals in court or administrative proceedings in the District of Columbia to defer to the Mayor of the District of Columbia's interpretation of statutes and regulations, and for other purposes.

This section forbids any court or administrative body in the District of Columbia from automatically accepting (deferring to) the Mayor's or a D.C. agency's interpretation of a law or regulation that the Mayor or agency is responsible for enforcing. This applies both when reviewing specific decisions or orders and when evaluating new rules adopted by the Mayor or an agency, thereby requiring D.C. tribunals to interpret the law independently.

This section explicitly revokes a specific D.C. law, the "Review of Agency Action Clarification Amendment Act of 2025 (D.C. Law 26-37)." It also restores any previous laws that D.C. Law 26-37 might have changed or repealed, effectively undoing the effects of that D.C. law as if it had never been enacted. This implies D.C. Law 26-37 was the local legislation that established or clarified the deference doctrine this federal bill seeks to eliminate.