Pub. L. 86-707, tit. V, pt. C, sec. 522

Sec. 522. Notwithstanding any provision of this Act and until such time as regulations are issued under this Act, employees shall continue to be paid allowances and differentials in accordance with rules and regulations issued pursuant to the laws in effect immediately prior to the enactment of this Act and such rules and regulations may be amended or revoked in accordance with the provisions of such laws.