5. Definitions In this Act: (1) Congressional district The term congressional district includes the district of a Delegate or Resident Commissioner to the Congress. (2) Nonbinding referendum The term nonbinding referendum means the referendum required by section 4(a) of this Act. (3) State The term State includes the District of Columbia, the Commonwealth of Puerto Rico, the Commonwealth of the Northern Mariana Islands, Guam, American Samoa, and the Virgin Islands of the United States.