The HTS distinguishes coatings primarily by their dispersion medium — water-based (aqueous) versus non-aqueous (solvent-based) — as well as by pigment content and binder type. These distinctions can place otherwise similar products in different tariff lines with different duty rates. Importers should obtain detailed technical data sheets from suppliers to support accurate classification.

Yes. Antifouling coatings containing biocidal active ingredients (such as copper compounds or certain organic biocides) are regulated as pesticides under FIFRA and must be EPA-registered before they can be imported for sale or distribution in the US. Importers must verify that the specific antifouling formulation has a valid EPA registration number and that labeling complies with FIFRA requirements.