Rn = registration identification number. By the United States Federal Trade Commission (Ministry of Commerce? ) awarded to companies engaged in manufacturing, importing, wholesaling and selling (textiles, wool and fur) in the United States. Each company has only one RN code. With RN, the company name and address can be omitted, and the original importer can be found through this number. It has the same function as Canadian CA.

If overseas manufacturers need to import, wholesale and sell directly, and need to display the company name or brand on the signboard, they can apply to FTC for RN number and put this number on the trademark or color card.