Indiana Code Title 27. Insurance § 27-8-31-14

Sec. 14. (a) Any state is eligible to become a compacting state.  The compact becomes effective and binding upon legislative enactment of the compact into law by two (2) compacting states.  However, the commission shall become effective for purposes of adopting uniform standards for, reviewing, and giving approval or disapproval of products filed with the commission that satisfy applicable uniform standards only after twenty-six (26) states are compacting states or, alternatively, by states representing greater than forty percent (40%) of the premium volume for life insurance, annuity, disability income, and long term care insurance products, based on records of the NAIC for the prior year.  Thereafter, it becomes effective and binding as to any other compacting state upon enactment of the compact into law by that state.

(b) Amendments to the compact may be proposed by the commission for enactment by the compacting states.  An amendment does not become effective and binding upon the commission and the compacting states unless and until all compacting states enact the amendment into law.