The Internal Revenue Service announced today that the general effective date for the regulations regarding section 403(b) arrangements that were proposed in 2004 (including the related controlled group regulations under section 414(c)) will be extended.In order to provide employers, employees, insurance carriers, and mutual funds involved in section 403(b) arrangements a reasonable advance period before the regulations go into effect, the final regulations generally will not be effective earlier than January 1, 2008.