Certain vertical shaft engines with a displacement between 99 cubic centimeters and up to 225cc, and parts thereof — China — A-570-124

This trade measure concerns certain vertical-shaft engines in a specified displacement range, along with some parts. “Vertical shaft” describes the engine’s output shaft orientation, while “displacement” is the engine’s cylinder volume, commonly measured in cubic centimeters (cc). The legal product description is called the scope, and it may depend on technical features—not only the product name or tariff classification.

AD/CVD means antidumping and countervailing duties. Antidumping (AD) duties address imports sold at less than normal value, while countervailing (CVD) duties address benefits from foreign-government subsidies. These measures typically affect importers, manufacturers, distributors, and related parties bringing covered engines or parts into the United States. They matter because additional duties may apply, and importers may have entry, deposit, certification, recordkeeping, and later duty-assessment obligations. The official scope and agency instructions control; a customs broker or trade attorney may be needed for a difficult scope question.

What to check

• Compare the product’s engine design, shaft orientation, displacement, and included parts with the official scope language, including exclusions and technical definitions.
• Confirm the correct HTSUS classification, but do not treat the tariff number as conclusive; scope language generally controls whether merchandise is covered.
• Identify the country of origin and any relevant manufacturing or assembly steps, because AD/CVD treatment can depend on origin and the measure’s specific coverage.
• Check official Customs and Commerce instructions for entry documentation, cash-deposit requirements, certifications, and possible later liquidation or duty assessment.
• Request a formal scope ruling or consult a qualified customs broker or trade attorney if the product is borderline, modified, bundled, or imported as a part.