Marine Cofferdam from Japan
A temporary floating enclosure used to create dry work areas underwater for construction like bridge piers. HTS 8907.90.00.90 covers it as other floating structures, specifically cofferdams.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit engineering plans proving watertight floating enclosure design
• USACE permits often needed; prepare environmental impact docs early