A prior section 7515, Pub. L. 115–73, title I, § 104(a), Oct. 26, 2017, 131 Stat. 1236, related to discipline of supervisors based on retaliation against whistleblowers, prior to repeal by Pub. L. 115–91, div. A, title X, § 1097(e)(1)(A), Dec. 12, 2017, 131 Stat. 1621.