Below are a variety of business resources used to assist in the import process: 

U.S. Customs and Border Patrol - Basic Importing and Exporting: From the Department of Homeland Security, a Basics Guide for Importing and Exporting, including guides on the Toxic Substances Control Act, Export Documents, Licenses, and Requirements 

Importing- Licenses and Permits: Determine the need for a license of permit

Importing into the U.S.- Guide for Commercial Importers