Section 337 of the tariff act of 1930 July 8, 2019 16 32 64 128 United states section 337 of the tariff act of 1930 337 of the tariff act of 1930 Section 318(a) of the tariff act of 1930 as amended 19 u.s.c. 1318(a) Us section 337 Tariff act of 1930 text Tariff act of 1930 full text