47 C.F.R. § 2.924 Marketing of electrically identical equipment having multiple trade names and models or type numbers under the same FCC Identifier.
Title 47 - Telecommunication
The grantee of an equipment authorization may market devices having different model/type numbers or trade names without additional authorization from the Commission, provided that such devices are electrically identical and the equipment bears an FCC Identifier validated by a grant of equipment authorization. A device will be considered to be electrically identical if no changes are made to the device authorized by the Commission, or if the changes made to the device would be treated as class I permissive changes within the scope of §2.1043(b)(1). Changes to the model number or trade name by anyone other than the grantee, or under the authorization of the grantee, shall be performed following the procedures in §2.933. [62 FR 10470, Mar. 7, 1997, as amended at 63 FR 36598, July 7, 1998]
Title 47: Telecommunication
PART 2—FREQUENCY ALLOCATIONS AND RADIO TREATY MATTERS; GENERAL RULES AND REGULATIONS
Subpart J—Equipment Authorization Procedures
Application Procedures for Equipment Authorizations
§ 2.924 Marketing of electrically identical equipment having multiple trade names and models or type numbers under the same FCC Identifier.

