Major Questions Doctrine
What does "Major Questions Doctrine" mean in law?
A canon of statutory interpretation holding that courts should not defer to an agency's claim of broad regulatory authority over matters of vast economic and political significance unless Congress has clearly authorized the agency to act. Formally articulated in West Virginia v. EPA (2022), the doctrine requires 'clear congressional authorization' before an agency may assert power over issues of major national significance, especially when the agency claims authority in areas beyond its traditional expertise or in ways that transform its regulatory role. The doctrine operates as a substantive limit on Chevron deference: even if a statute is ambiguous, the agency loses deference on major questions absent a clear statement from Congress. Critics argue the doctrine lacks a principled definition of 'major' and shifts power from agencies to courts.
Definition
A canon of statutory interpretation holding that courts should not defer to an agency's claim of broad regulatory authority over matters of vast economic and political significance unless Congress has clearly authorized the agency to act. Formally articulated in West Virginia v. EPA (2022), the doctrine requires 'clear congressional authorization' before an agency may assert power over issues of major national significance, especially when the agency claims authority in areas beyond its traditional expertise or in ways that transform its regulatory role. The doctrine operates as a substantive limit on Chevron deference: even if a statute is ambiguous, the agency loses deference on major questions absent a clear statement from Congress. Critics argue the doctrine lacks a principled definition of 'major' and shifts power from agencies to courts.
Example
In West Virginia v. EPA, the Supreme Court applied the major questions doctrine to reject the EPA's claim that the Clean Air Act authorized it to restructure the nation's energy grid through its Clean Power Plan, holding that such a transformative assertion of authority required clear congressional authorization.