Rulemaking
Rulemaking is the quasi-legislative process through which federal administrative agencies in the United States formulate, amend, or repeal regulations—known as rules—that implement and interpret statutes delegated by Congress, carrying the binding force of law.[1][2] These rules address detailed policy implementation in areas such as environmental protection, public health, and economic regulation, filling gaps left by broad legislative directives.[3][4] The Administrative Procedure Act (APA) of 1946 establishes the core framework for rulemaking, requiring agencies to publish notices of proposed rules in the Federal Register, solicit and respond to public comments, and justify final rules based on the administrative record.[5][6] Informal notice-and-comment rulemaking under APA § 553 predominates, promoting transparency while allowing agencies flexibility, whereas formal rulemaking—entailing trial-like hearings—is rare and limited to statutes explicitly mandating it.[7][8] This process enables agencies to adapt regulations to empirical evidence and changing conditions, but it has fueled concerns over unaccountable bureaucratic power, as agencies wield significant discretion in interpreting ambiguous laws.[4] Rulemaking's expansion alongside the administrative state has achieved regulatory achievements like standardized safety standards and environmental safeguards, yet it remains contentious due to instances of regulatory overreach, inadequate cost-benefit analysis, and challenges to congressional delegation of lawmaking authority.[3][9] Recent judicial developments, including the 2024 Supreme Court decision in Loper Bright Enterprises v. Raimondo overturning Chevron deference, have curtailed agency interpretive latitude, emphasizing that courts must independently interpret statutes rather than defer to agency views, thereby reasserting separation-of-powers principles.[4]