§2000cc–1. Protection of religious exercise of institutionalized persons
(a) General rule
No 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 application
This 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.