A prior section 70101 was transferred and renumbered as section 50901 of Title 51, National and Commercial Space Programs.

2021—Subsec. (c). Pub. L. 117–58 substituted “Assistant Secretary for Multimodal Freight” for “Under Secretary of Transportation for Policy” in introductory provisions.

Section effective Oct. 1, 2015, see section 1003 of Pub. L. 114–94, set out as an Effective Date of 2015 Amendment note under section 5313 of Title 5, Government Organization and Employees.