Members of the Board of Supervisors serve on various regional agencies, committees, and subcommittees. Links to the calendars for these bodies, including dates, times and locations for meetings where three or more members of the Board of Supervisors may be present, are below.

• Metropolitan Washington Council of Governments
  (Air Quality Committee, Region Forward Committee, Regional Transportation Planning Board)
• George Mason University Fairfax Campus Advisory Board
• Northern Virginia Regional Commission
• Northern Virginia Transportation Commission
• Virginia Association of Counties