HTS tariff line · chapter 73
7309.00.00
Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment
Analysis
HTS 7309.00.00 covers reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300 liters… under heading 7309 (reservoirs, tanks, vats and similar containers for any material (other than compressed or…). US Customs collects import statistics for it under 2 ten-digit suffixes, reported in number of items and kilograms.
Goods from countries without normal trade relations pay the column 2 rate of 45% instead of nothing, so origin decides between free entry and a 45% duty.
For statistics it divides in two: 7309.00.00.30 for tanks and 7309.00.00.90 for other. Both pay the same duty; the suffix records which kind was imported.
The normal trade relations rate here is zero, shared by about 77% of the 250 tariff lines in chapter 73, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.
It is the only US line under subheading 7309.00, so the six-digit code used by every Harmonized System country and the eight-digit US line describe the same goods; a foreign tariff or an exporter's invoice showing 7309.00 points straight here.