1986—Pub. L. 99–570 substituted “$1,000 for the first passenger and $500 for each additional such passenger” for “$500 for each such passenger”.

1970—Pub. L. 91–271 substituted reference to appropriate customs officer for reference to collector.

For effective date of amendment by Pub. L. 91–271, see section 203 of Pub. L. 91–271, set out as a note under section 1500 of this title.