What Is Administrative Law: Agencies, Regulations, and Judicial Review

This article is for informational purposes only and does not constitute legal advice. Consult a qualified attorney before taking any legal action.

What Is Administrative Law?

Administrative law is the body of law that governs the creation, operation, oversight, and judicial review of administrative agencies — the vast bureaucratic apparatus through which modern governments regulate the economy, public health, the environment, financial markets, and countless other areas of daily life. In the United States, administrative law primarily concerns federal agencies (such as the EPA, FCC, FDA, OSHA, and SEC), though most states have parallel administrative law systems governing state agencies.

Administrative agencies exercise three types of governmental power typically separated among the branches: they legislate by issuing binding regulations, they execute by enforcing statutes and regulations, and they adjudicate by resolving disputes through administrative hearings. This combination of powers — often described as the "fourth branch" of government — makes agencies uniquely powerful and, critics argue, uniquely in need of accountability.

The Administrative Procedure Act (APA)

The Administrative Procedure Act of 1946 (5 U.S.C. §§ 551–706) is the foundational federal statute governing how agencies operate. It establishes the procedures agencies must follow in rulemaking and adjudication, and provides a framework for judicial review of agency action. Key provisions include:

• Definitions of "rule," "order," "adjudication," and related terms.
• Procedural requirements for informal (notice-and-comment) and formal rulemaking.
• Requirements for formal adjudications, including the right to an evidentiary hearing before an administrative law judge (ALJ).
• Freedom of Information Act (FOIA) provisions requiring agencies to make records available to the public.
• Judicial review standards, including the arbitrary-and-capricious standard for informal agency action.

Rulemaking: How Agencies Make Law

Regulations (also called rules) issued by federal agencies have the force of law. The typical process for informal rulemaking (notice-and-comment rulemaking, the most common type) under APA § 553 is:

• Proposed rule: The agency publishes a Notice of Proposed Rulemaking (NPRM) in the Federal Register, setting out the proposed regulation and inviting public comment, typically for 30–60 days.
• Public comment period: Any person — individuals, corporations, advocacy groups, other agencies — may submit written comments. Agencies receive thousands of comments on major rules.
• Final rule: The agency considers the comments, may revise the proposed rule, and publishes a Final Rule in the Federal Register with a preamble explaining the rule and responding to significant comments. Final rules are codified in the Code of Federal Regulations (CFR).
• Effective date: Final rules typically take effect 30 days after publication in the Federal Register.

Administrative Adjudication

Many agencies resolve disputes through internal adjudicatory proceedings rather than courts. Social Security disability appeals, immigration removal proceedings, tax disputes (Tax Court), securities enforcement actions, and workplace safety violations are all adjudicated initially through agency processes. Administrative Law Judges (ALJs) — who are independent agency adjudicators, not Article III federal judges — preside over these proceedings.

Parties in formal agency adjudications have rights to notice of the charges, an opportunity to be heard (present evidence and argument), and a decision supported by findings of fact and conclusions of law. The ALJ\'s decision may be appealed to a higher level within the agency (e.g., the Benefits Review Board, the Board of Immigration Appeals) and ultimately to federal court.

Judicial Review of Agency Action

The APA provides that courts may set aside agency action that is "arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law." Courts apply different standards depending on what is being reviewed:

The Fall of Chevron Deference

For four decades, courts applied the Chevron U.S.A., Inc. v. Natural Resources Defense Council (1984) framework, which required courts to defer to an agency\'s reasonable interpretation of an ambiguous statute the agency administered. In Loper Bright Enterprises v. Raimondo (2024), the Supreme Court overruled Chevron, holding that courts must independently determine the best interpretation of ambiguous statutes without deferring to agency readings. This decision significantly shifts the balance of power between agencies and courts in regulatory interpretation disputes.

Constitutional Constraints on Agencies

Administrative agencies operate within constitutional constraints imposed by all three branches:

• Nondelegation doctrine: Congress cannot delegate legislative power to agencies without providing an "intelligible principle" guiding its exercise. Courts have rarely invalidated statutes on nondelegation grounds, but recent Supreme Court decisions suggest renewed interest in the doctrine.
• Separation of powers: Agencies must remain within the structure established by Congress; the President\'s removal power over agency heads has been an active area of litigation (Seila Law v. CFPB, 2020).
• Due process: Parties in agency adjudications have a constitutional right to notice and an opportunity to be heard before adverse government action.

Conclusion

Administrative law is the connective tissue between democratic governance and the technical, day-to-day regulation of a complex modern society. The APA\'s procedural requirements — particularly notice-and-comment rulemaking — provide a measure of public participation and accountability for the enormous power that agencies exercise. With Chevron deference overruled, the relative roles of agencies and courts in interpreting statutory authority are being recalibrated, making administrative law one of the most dynamic and consequential areas of contemporary American law.