2021—Subsec. (b)(10) to (17). Pub. L. 117–58, § 21104(a)(1), added pars. (10) to (16) and redesignated former par. (10) as (17).

Subsec. (d). Pub. L. 117–58, § 21104(c)(1), substituted “8-year” for “5-year”.

Subsec. (e)(1). Pub. L. 117–58, § 21104(c)(2), substituted “4 years” for “5 years”.

Subsecs. (f) to (h). Pub. L. 117–58, § 21104(a)(2), added subsecs. (f) to (h).

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.