39 U.S.C. § 5

Effective October 1, 1994, each of the figures contained in section 506(b)(3)(A)(iii) of the Supplemental Appropriations Act, 1973 (2 U.S.C. 58(b)(3)(A)(iii)) [now 2 U.S.C. 6314(b)(3)(A)(iii)] is increased by $50,000: Provided, That, in any fiscal year beginning with fiscal year 1995, a Senator may use funds provided for official office expenses, but not to exceed $50,000, for mass mailing, as defined in section 6(b)(1) and all such mass mailings shall be under the frank.