Agencies of the bureaucracy do more than carry out laws: they write detailed rules with the force of law, under authority Congress delegates. Who keeps them in line? All three branches, and the public. Congress uses the same tools it uses in budget and oversight.
| Who | How they hold agencies accountable |
|---|---|
| Congress | writes the laws that create agencies and limit their authority; funds them (or does not); holds hearings and investigations; confirms top officials; can overturn rules by passing a new law (including under the Congressional Review Act) |
| The President | appoints and directs agency heads; can remove most of them; the Office of Management and Budget reviews major rules |
| The courts | decide whether a rule follows the statute and the Constitution and whether the agency followed fair procedures (the Administrative Procedure Act, 1946) |
| The public | comments on proposed rules published in the Federal Register (notice and comment); interest groups lobby and sue |
Why it works
Congress cannot write every detail (the safe level of a chemical, the rules for a radio license), so it sets goals and delegates the details. That brings expertise but raises a question of democratic control. The checks above answer it. Courts also decide what statutes mean. Under the Chevron rule of 1984, courts deferred to an agency's reasonable reading of an ambiguous statute; the Court overruled Chevron in 2024, and courts now decide the best reading themselves. Political scientists also describe iron triangles: stable alliances among an agency, the congressional committee that oversees it, and the interest groups it regulates or serves, which can make policy hard for outsiders to change. Looser, broader issue networks of experts and advocates also shape policy.
Key idea
Agencies write rules under authority Congress delegates; Congress checks them with hearings, budgets and new laws; the President appoints and directs their leaders; courts review whether rules follow the law; iron triangles link agencies, committees and interest groups.
Worked example: Name the check
An agency issues a rule. A company sues, saying the rule goes beyond what the statute allows. Which branch decides, and what question does it ask?
- The courts.
- They ask whether the statute authorizes the rule (deciding the statute's best meaning themselves) and whether the agency followed required procedures.
Answer: The judicial branch: does the rule fit the statute and the procedures?
Worked example: Spot the triangle
A farm agency, the House Agriculture Committee and a farmers' association work closely together on crop programs for decades. What do political scientists call that?
- An agency, a committee and an interest group in a stable, mutually helpful alliance.
Answer: An iron triangle.
Common mistake
Thinking agencies make law on their own. Agency rules must rest on authority Congress has delegated, must follow required procedures (notice and comment), and can be set aside by courts or overturned by Congress. Check: every valid rule traces back to a statute.