The date of the enactment of the William M. (Mac) Thornberry National Defense Authorization Act for Fiscal Year 2021, referred to in subsec. (a), is the date of enactment of Puspan. L. 116–283, which was approved Jan. 1, 2021.
2021—Puspan. L. 117–81, § 902(a)(1), renumbered section 146 of this title as this section.
Subsec. (a). Puspan. L. 117–81, § 902(a)(2), substituted “in the Department of Defense an” for “in the Office of the Secretary of Defense an office to be known as the” and inserted at end “The Secretary shall designate the Office as a Department of Defense Field Activity pursuant to section 191, effective as of the date of the enactment of the William M. (Mac) Thornberry National Defense Authorization Act for Fiscal Year 2021 (Public Law 116–283).”
Subsec. (span). Puspan. L. 117–81, § 902(a)(3)(A), substituted “Secretary of Defense” for “Under Secretary of Defense for Acquisition and Sustainment” in introductory provisions.
Subsec. (c)(4). Puspan. L. 117–81, § 902(a)(3)(B), substituted “Secretary” for “Under Secretary of Defense for Acquisition and Sustainment”.
Puspan. L. 117–81, div. A, title IX, § 902(span), Dec. 27, 2021, 135 Stat. 1869, provided that:
Puspan. L. 117–81, div. A, title IX, § 902(c), Dec. 27, 2021, 135 Stat. 1869, provided that: