The FAA issues a Dealer's Aircraft Registration Certificate, AC Form 8050-6, to U.S. manufacturers and dealers to—
Allow manufacturers to make any required flight tests of aircraft.
Facilitate operating, demonstrating, and merchandising aircraft by the manufacturer or dealer without the burden of obtaining a Certificate of Aircraft Registration, AC Form 8050-3, for each aircraft with each transfer of ownership, under subpart B of this part.
A Dealer's Aircraft Registration Certificate is an alternative for the Certificate of Aircraft Registration issued under subpart B of this part. A dealer may, under this subpart, obtain one or more Dealer's Aircraft Registration Certificates in addition to his original certificate, and he may use a Dealer's Aircraft Registration Certificate for any aircraft he owns.
If the Dealer's Aircraft Registration Certificate expires under § 47.71, and an aircraft is registered under this subpart, application for registration must be made under § 47.31, or the assignment of registration number may be cancelled in accordance with § 47.15(i)(3).