Section, acts Apr. 14, 1910, ch. 160, § 6,
36 Stat. 299; Oct. 15, 1966,
Pub. L. 89–670, § 6(e)(1)(C),
80 Stat. 939, provided that it was the duty of the Secretary of Transportation to enforce the provisions of sections
11 to
16 of this title as to equipment of each car with safety appliances and that all powers theretofore granted to the Interstate Commerce Commission were extended to the Secretary for the purpose of such enforcement. See section
501
(b) of Title
49, Transportation.