Section was formerly classified to section 5791b of Title 42, The Public Health and Welfare, prior to editorial reclassification and renumbering as this section.

2021—Pub. L. 116–283, § 10001(b)(1)(A), inserted “and major transportation routes” after “along highways” in section catchline.

Subsec. (a). Pub. L. 116–283, § 10001(b)(1)(B), inserted “(referred to in this section as the ‘Secretary’)” after “Secretary of Transportation” and “and at airports, maritime ports, border crossing areas and checkpoints, and ports of exit from the United States” after “along highways”.

Subsec. (b)(1). Pub. L. 116–283, § 10001(b)(1)(C)(i), substituted “other information systems to notify motorists, aircraft passengers, ship passengers, and travelers” for “other motorist information systems to notify motorists” and inserted “, aircraft passengers, ship passengers, and travelers” after “necessary to notify motorists”.

Subsec. (b)(2)(A). Pub. L. 116–283, § 10001(b)(1)(C)(ii)(I), substituted “other information systems to notify motorists, aircraft passengers, ship passengers, and travelers” for “other motorist information systems to notify motorists”.

Subsec. (b)(2)(D). Pub. L. 116–283, § 10001(b)(1)(C)(ii)(II), inserted “, aircraft passengers, ship passengers, and travelers” after “support the notification of motorists”.

Subsec. (b)(2)(E). Pub. L. 116–283, § 10001(b)(1)(C)(ii)(III), inserted “, aircraft passengers, ship passengers, and travelers” after “motorists” in two places.

Subsec. (b)(2)(F), (G). Pub. L. 116–283, § 10001(b)(1)(C)(ii)(IV), (V), inserted “, aircraft passengers, ship passengers, and travelers” after “motorists”.

Subsec. (c). Pub. L. 116–283, § 10001(b)(1)(D), substituted “other information systems to notify motorists, aircraft passengers, ship passengers, and travelers” for “other motorist information systems” in two places.

Subsec. (d). Pub. L. 116–283, § 10001(b)(1)(E), amended subsec. (d) generally. Prior to amendment, text read as follows: “The Federal share of the cost of any activities funded by a grant under this section may not exceed 80 percent.”

Subsec. (g). Pub. L. 116–283, § 10001(b)(1)(F), substituted “In this chapter” for “In this section” and “American Samoa, Guam, Puerto Rico, the Northern Mariana Islands, the Virgin Islands of the United States, and any other territory of the United States” for “or Puerto Rico”.

Subsec. (h). Pub. L. 116–283, § 10001(b)(1)(G), substituted “each of fiscal years 2019 through 2023” for “fiscal year 2004”.