date by which all Commission members’ terms have commenced, whichever is later. 10. Definitions In this Act: (1) Agency The term agency has the meaning given such term in section 551 of title 5, United States Code. (2) Unfunded mandate The term unfunded mandate has the meaning given the term Federal mandate in section 421(6) of the Congressional Budget Act of 1974 ( 2 U.S.C. 658(6) ).