19 U.S.C. § 1806
Definitions
For purposes of this chapter—
(1)
Repealed. Pub. L. 93–618, title VI, § 602(d) , Jan. 3, 1975 , 88 Stat. 2072 .
(2)
The term “duty or other import restriction” includes (A) the rate and form of an import duty, and (B) a limitation, prohibition, charge, and exaction other than duty, imposed on importation or imposed for the regulation of imports.
(3)
to (5) Repealed. Pub. L. 93–618, title VI, § 602(d) , Jan. 3, 1975 , 88 Stat. 2072 .
(6)
The term “modification”, as applied to any duty or other import restriction, includes the elimination of any duty.
( Pub. L. 87–794, title IV, § 405 , Oct. 11, 1962 , 76 Stat. 902 ; Pub. L. 93–618, title VI, § 602(d) , Jan. 3, 1975 , 88 Stat. 2072 .)