On July 23, 2007, the U.S. Treasury Department and the IRS released final regulations for Section 403(b) of the Internal Revenue Code. These regulations affect the Concordia Retirement Savings Plan (CRSP) as well as individual contracts that church workers may have set up on their own with other companies (such as Thrivent, Fidelity, American Funds, etc.). The regulations are generally effective Jan. 1, 2009, with one exception related to 90-24 transfers between 403(b) plans which was effective Sept. 24, 2007.