Maria Cantwell serves on the following Senate committees:

• Senate Committee on Commerce, Science and Transportation
• Chairwoman, Subcommittee on Aviation Operations, Safety and Security
• Member, Subcommittee on Communications, Technology and the Internet
• Member, Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety and Security
• Member, Subcommittee on Oceans, Atmosphere, Fisheries, and Coast Guard
• Senate Committee on Energy and Natural Resources
  • Member, Subcommittee on Energy and Natural Resources
  • Member, Subcommittee on Water and Power
  • Member, Subcommittee on Public Lands, Forests and Mining
• Senate Committee on Finance
  • Member, Subcommittee on Energy, Natural Resources and Infrastructure
  • Member, Subcommittee on Taxation and IRS Oversight and Long-term Growth
  • Member, Subcommittee on Health Care
  • Member, Subcommittee on International Trade, Customs and Global Competitiveness
• Chairwoman, Senate Committee on Indian Affairs
• Senate Committee on Small Business and Entrepreneurship