A prior section 70102 was transferred and renumbered as section 50902 of Title 51, National and Commercial Space Programs.

2021—Subsec. (a). Pub. L. 117–58, § 21101(d)(2)(A), substituted “The Assistant Secretary for Multimodal Freight (referred to in this section as the ‘Assistant Secretary’)” for “Not later than 2 years after the date of enactment of this section, the Under Secretary of Transportation for Policy” in introductory provisions.

Subsec. (b)(4). Pub. L. 117–58, § 21101(d)(2)(B), substituted “Assistant Secretary” for “Under Secretary” in introductory provisions.

Subsec. (b)(12) to (17). Pub. L. 117–58, § 21102, added pars. (12) to (17).

Subsec. (c). Pub. L. 117–58, § 21101(d)(2)(C), substituted “Assistant Secretary” for “Under Secretary”.

Subsec. (d). Pub. L. 117–58, § 21101(d)(2)(D), substituted “Assistant Secretary” for “Under Secretary” 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.