What is a subcommittee?

A subcommittee is a smaller group within a congressional committee, focused on a specific subset of the committee's broader policy area. Subcommittees allow committees to divide their workload and develop specialized expertise on particular issues within their jurisdiction. Most major standing committees in both the House and Senate have subcommittees.

The House Appropriations Committee, for example, has 12 subcommittees, each handling appropriations for a specific area such as Defense, Agriculture, Labor and HHS, or Homeland Security. The Senate Appropriations Committee has a similar subcommittee structure. The House Energy and Commerce Committee has subcommittees on Communications and Technology, Energy, Environment, Health, and others. The Senate Judiciary Committee has subcommittees on the Constitution, the federal courts, immigration, antitrust, and other specific areas.

Subcommittee chairs and ranking members are appointed by the full committee chair and ranking member, respectively, and are usually senior members of the majority and minority parties on the committee. Subcommittees hold hearings on legislation and policy issues within their jurisdiction. They can mark up bills, meaning they can consider and adopt amendments to the legislation. After subcommittee markup, bills typically go to the full committee for further consideration before reaching the chamber floor. Subcommittees also conduct oversight investigations of executive agencies and programs in their area.

The structure of subcommittees varies by chamber and committee. Some committees give substantial power to their subcommittees, with most legislative and oversight work happening at the subcommittee level. Other committees concentrate authority at the full committee level, with subcommittees playing more limited roles. The trend in recent decades has generally been toward stronger full committee chairs and somewhat weaker subcommittees, though significant variation remains.

Subcommittees give members of Congress more opportunities to develop expertise and influence policy. Members who serve on key subcommittees can become leading voices on specific issues, even if they are not chairs of full committees. The subcommittee structure also lets Congress address technical and complex policy areas that would be difficult to handle at the full committee level.

Some subcommittees are particularly powerful and politically significant. Appropriations subcommittees, for example, control specific portions of federal spending and are heavily lobbied by interests affected by their decisions. Subcommittees on health, judiciary issues, and tax policy often handle some of the most important and contentious legislation.