Due to the high volume and complexity of its work, the Senate divides its tasks among 20 committees, 68 subcommittees, and 4 joint committees. Although the Senate committee system is similar to that of the House of Representatives, it has its own guidelines, within which each committee adopts its own rules. This creates considerable variation among the panels.
Informal congressional groups and organizations of Members with shared interests in specific issues or philosophies have been part of the American policymaking process since colonial times. Typically, these groups organize without official recognition by the chamber and are not funded through the appropriation process.
