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Marine Cofferdam from Canada

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 — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Submit engineering plans proving watertight floating enclosure design

USACE permits often needed; prepare environmental impact docs early