United States Code Title 45 — Railroads § 645. Repealed. Pub. L. 99–272, title IV, § 4007(b), Apr. 7, 1986, 100 Stat. 108 § 645. Repealed. Pub. L. 99–272, title IV, § 4007(b), Apr. 7, 1986, 100 Stat. 108