2 U.S.C. § 6112
Compensation of Deputy President pro tempore of Senate
Effective January 5, 1977 , the compensation of a Deputy President pro tempore of the Senate shall be at a rate equal to the rate of annual compensation of the President pro tempore and the Majority and Minority Leaders of the Senate.
( Pub. L. 95–26, title I , May 4, 1977 , 91 Stat. 79 .)