42 USC 2000bb1 - Free exercise of religion protected

(a) In general 
Government shall not substantially burden a persons exercise of religion even if the burden results from a rule of general applicability, except as provided in subsection (b) of this section.
(b) Exception 
Government may substantially burden a persons exercise of religion only if it demonstrates that application of the burden to the person
(1) is in furtherance of a compelling governmental interest; and
(2) is the least restrictive means of furthering that compelling governmental interest.
(c) Judicial relief 
A person whose religious exercise has been burdened in violation of this section may assert that violation as a claim or defense in a judicial proceeding and obtain appropriate relief against a government. Standing to assert a claim or defense under this section shall be governed by the general rules of standing under article III of the Constitution.