39 U.S.C. § 415
Prohibition on restriction or elimination of services
The Postal Service may not restrict, eliminate, or adversely affect any service provided by the Postal Service as a result of the payment of any penalty imposed under the Occupational Safety and Health Act of 1970 ( 29 U.S.C. 651 et seq.).
(Added Pub. L. 105–241, § 4(a) , Sept. 28, 1998 , 112 Stat. 1573 .)