1991—Pub. L. 102–83 renumbered section 1901 of this title as this section.

1977—Par. (1). Pub. L. 95–116 struck out “on or after September 16, 1940” after “or air service” in cls. (A) and (B).

1976—Par. (1). Pub. L. 94–433, § 303(1), (2), substituted “on or after September 16, 1940” for “during World War II or thereafter” in cls. (A) and (B).

1974—Par. (1)(A). Pub. L. 93–538, § 2(1), substituted “World War II or thereafter” for “World War II, or the Korean conflict; or if the disability is the result of an injury incurred or disease contracted in or aggravated by active military, naval, or air service performed after January 31, 1955, and the injury was incurred or the disease was contracted in line of duty as a direct result of the performance of military duty.”

Par. (1)(B). Pub. L. 93–538, § 2(2), substituted “World War II or thereafter” for “World War II, the Korean conflict, or the Vietnam era; or if such disability is the result of an injury incurred or disease contracted in or aggravated by any other active military, naval, or air service performed after January 31, 1955, and the injury was incurred or the disease was contracted in line of duty as a direct result of the performance of military duty.”

Par. (2). Pub. L. 93–538, § 2(2), substituted definition of “adaptive equipment” for definition of “World War II”.

Section 1(b) of Pub. L. 95–116 provided that: “The amendment made by subsection (a) of this section [amending this section] shall become effective October 1, 1977.”

Amendment by Pub. L. 94–433 effective Oct. 1, 1976, see section 406 of Pub. L. 94–433, set out as a note under section 1101 of this title.

Section 6 of Pub. L. 93–538 provided that: “The provisions of this Act [enacting section 1904 [now 3904] of this title, amending this section and sections 1902 and 1903 [now 3902 and 3903] of this title, and enacting provisions set out as a note under this section] shall become effective on the first day of the second calendar month following the date of enactment [Dec. 22, 1974], except that clause (3) of section 3 [amending section 1902 [now 3902] of this title] shall take effect on January 11, 1971.”

For short title of Pub. L. 91–666, Jan. 11, 1971, 84 Stat. 1998, which enacted this chapter, as the “Disabled Veterans’ and Servicemen’s Automobile Assistance Act of 1970”, see section 1 of Pub. L. 91–666, set out as a Short Title of 1971 Amendment note under section 101 of this title.