A professional who computes duties, tariffs, and weight, volume, and price conversions of merchandise exported to or imported from foreign countries. Responsibilities include:

• Examines documents, such as invoices, bills of lading, and shipping statements, to verify conversion of merchandise weights or volumes into system used by other country.
• Converts foreign currency figures into United States monetary equivalents, or domestic currency into foreign equivalents, using rate charts.
• Calculates duties or tariffs to be paid on merchandise, using calculating machine.
• May correspond with foreign companies.
• May be designated according to type of transaction as Customs-Entry Clerk; Export Clerk; Import Clerk.