Clamshell Dredger
A clamshell dredger is a vessel equipped with multiple clamshell buckets used for efficient bulk seabed material removal in port maintenance. Its principal function is dredging via grabs, with navigability being auxiliary. This qualifies it as a dredger under tariff item 8905.10.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 25% | — | 25% |
| 🇲🇽Mexico | 25% | — | 25% |
| 🇺🇸United States | 25% | — | 25% |
| 🇩🇪Germany | 25% | — | 25% |
| 🇯🇵Japan | 25% | — | 25% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the vessel is incomplete or not fully assembled
Chapter note 1 covers incomplete vessels lacking essential character.
If the equipment is a land-based excavator, not a vessel
Mechanical shovels and excavators fall under Chapter 84 when not vessel-mounted.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document that the clamshell buckets are integral to the dredging function to justify classification
• Be prepared to show the CBSA the vessel's operational design and purpose
• Verify if any environmental permits are needed for dredging operations in Canadian waters
Related Products under Tariff item 8905.10.00
Bucket Ladder Dredger
A bucket ladder dredger is a mechanical vessel equipped with an endless chain of buckets that excavate material from the seabed. It is used in coastal and river dredging operations where the primary function is excavation, with navigation being secondary. This vessel falls under tariff item 8905.10.00 as a dredger because its main purpose is dredging, not transport.
Cutter Suction Dredger
A cutter suction dredger is a self-propelled vessel with a rotating cutter head to loosen soil and pumps for excavation, primarily used for dredging channels and harbors. Its navigability is subsidiary to the main dredging function, making it a dredger under tariff item 8905.10.00.
Dippers Dredger
A dipper dredger is a backhoe-style vessel using a dipping bucket arm for excavating underwater material, common for precise trenching work. Its main function is dredging via the dipper mechanism, with subsidiary navigability, qualifying it under tariff item 8905.10.00.
Grab Dredger
A grab dredger is a vessel equipped with clamshell grabs suspended from cranes to scoop seabed material, used for grabbing and lifting dredged spoil. Its primary function is material grabbing for dredging, with navigability subsidiary, making it a dredger under tariff item 8905.10.00.
Non-Self-Propelled Dredger Pontoon
A non-self-propelled dredger pontoon is a floating platform towed to site, equipped with a dredging ladder and pumps for stationary excavation work. It lacks independent navigation, and its main function is dredging, so it is classified as a dredger under tariff item 8905.10.00.
Placer Gold Dredger
A placer gold dredger is a specialized floating vessel with sluice boxes and suction systems for alluvial gold mining dredging operations. Its primary function is mineral extraction via dredging, making it a dredger under tariff item 8905.10.00.