42 U.S.C. § 2000bb–2

As used in this chapter— (1) the term “government” includes a branch, department, agency, instrumentality, and official (or other person acting under color of law) of the United States, or of a covered entity; (2) the term “covered entity” means the District of Columbia, the Commonwealth of Puerto Rico, and each territory and possession of the United States; (3) the term “demonstrates” means meets the burdens of going forward with the evidence and of persuasion; and (4) the term “exercise of religion” means religious exercise, as defined in section 2000cc–5 of this title .