1996—Subsecs. (b) to (d). Pub. L. 104–208 added subsec. (b) and redesignated former subsecs. (b) and (c) as (c) and (d), respectively.

1991—Subsec. (a). Pub. L. 102–232 substituted “fined under title 18” for “fined not more than $2,000 (or, if greater, the amount provided under title 18)”.

1990—Subsec. (a). Pub. L. 101–649, § 543(b)(2), inserted “or attempts to enter” after “(1) enters” and “attempts to enter or” after “or (3)”, and substituted “shall, for the first commission of any such offense, be fined not more than $2,000 (or, if greater, the amount provided under title 18) or imprisoned not more than 6 months, or both, and, for a subsequent commission of any such offense, be fined under title 18, or imprisoned not more than 2 years” for “shall, for the first commission of any such offenses, be guilty of a misdemeanor and upon conviction thereof be punished by imprisonment for not more than six months, or by a fine of not more than $500, or by both, and for a subsequent commission of any such offenses shall be guilty of a felony and upon conviction thereof shall be punished by imprisonment for not more than two years, or by a fine of not more than $1,000”.

Subsec. (c). Pub. L. 101–649, § 121(b)(3), added subsec. (c).

1986—Pub. L. 99–639 designated existing provisions as subsec. (a) and added subsec. (b).

Pub. L. 104–208, div. C, title I, § 105(b), Sept. 30, 1996, 110 Stat. 3009–556, provided that: “The amendments made by subsection (a) [amending this section] shall apply to illegal entries or attempts to enter occurring on or after the first day of the sixth month beginning after the date of the enactment of this Act [Sept. 30, 1996].”

Amendment by Pub. L. 102–232 effective as if included in the enactment of the Immigration Act of 1990, Pub. L. 101–649, see section 310(1) of Pub. L. 102–232, set out as a note under section 1101 of this title.

Amendment by section 121(b)(3) of Pub. L. 101–649 effective Oct. 1, 1991, and applicable beginning with fiscal year 1992, see section 161(a) of Pub. L. 101–649, set out as a note under section 1101 of this title.

Amendment by section 543(b)(2) of Pub. L. 101–649 applicable to actions taken after Nov. 29, 1990, see section 543(c) of Pub. L. 101–649, set out as a note under section 1221 of this title.

For abolition of Immigration and Naturalization Service, transfer of functions, and treatment of related references, see note set out under section 1551 of this title.