Except as provided in subsection (b) of this section, it shall not be unlawful under any of the antitrust laws, or under a State law similar to any of the antitrust laws, for 2 or more persons described in section 501(c)(3) of title 26 that are exempt from taxation under section 501(a) of title 26 to use, or to agree to use, the same annuity rate for the purpose of issuing 1 or more charitable gift annuities.
Subsection (a) of this section shall not apply with respect to the enforcement of a State law similar to any of the antitrust laws, with respect to conduct described in subsection (a) of this section occurring after the State enacts a statute, not later than 3 years after December 8, 1995, that expressly provides that subsection (a) of this section shall not apply with respect to such conduct.