Importers generally need mill certificates or technical data sheets specifying the coating type, coat weight (grams per square meter), and base paper grade. Customs may request laboratory analysis if the coating type is disputed, as the nature of the coating determines both the HTS classification and whether any antidumping or countervailing duty orders apply.

Certain coated paper products have been subject to antidumping and countervailing duty orders from specific origins. The applicability depends on the precise product specification and country of origin. Importers should conduct an AD/CVD scope review with a licensed customs broker before committing to a supplier, as scope determinations can be narrow and fact-specific.