Representative Martha Roby serves on the powerful House Committee on Appropriations, which oversees the whole range of government spending.

Rep. Roby serves on the following Subcommittees:

- Defense

- Labor, Health and Human Services, Education, and Related Agencies

- Commerce, Justice, Science, and Related Agencies Subcommittee

Representative Roby also serves on the House Judiciary Committee and sits on the Crime, Terrorism, Homeland Security, and Investigations Subcommittee.