Conn. Agencies Regs. § 14-67l-1
Each motor vehicle displaying a general distinguishing number plate pursuant to Section 14-67n of the General Statutes shall be operated by a person who has in his or her possession a supplemental identification document issued by the junk yard licensee indicating such person is validly entrusted with such vehicle. The supplemental identification document shall be prepared in duplicate on a form which is not smaller than 3 3/8 inches by 2 inches. Except as indicated below the type shall be no smaller than 8 point type and contain the following information:
No supplemental identification document may be issued to expire more than six months from the date of issuance. The duplicate copy of this supplemental identification document shall be retained by the licensee at the licensee's place of business for a period of six months from the date of its expiration and shall be available for examination by any police officer or inspector designated by the commissioner of motor vehicles.
Conn. Agencies Regs. § 14-67l-1