42 U.S.C. § 2000cc–1: Protection of religious exercise of institutionalized persons

(a) General ruleNo government shall impose a substantial burden on the religious exercise of a person residing in or confined to an institution, as defined in section 1997 of this title, even if the burden results from a rule of general applicability, unless the government demonstrates that imposition of the burden on that person—(1) is in furtherance of a compelling governmental interest; and (2) is the least restrictive means of furthering that compelling governmental interest. (b) Scope of applicationThis section applies in any case in which—(1) the substantial burden is imposed in a program or activity that receives Federal financial assistance; or (2) the substantial burden affects, or removal of that substantial burden would affect, commerce with foreign nations, among the several States, or with Indian tribes.