14 C.F.R. § 1221.105 Establishment of NASA Program Identifiers.
Title 14 - Aeronautics and Space
A separate and unique identifier may be designed and approved in connection with or in commemoration of a major NASA program. Each approved identifier shall be officially identified by its title such as “Apollo,” “Skylab,” “Viking,” “Space Shuttle,” “Space Station,” or a major NASA anniversary. NASA Program Identifiers shall be used as set forth in §1221.112 pursuant to approval as set forth in §1221.114.
Title 14: Aeronautics and Space
PART 1221—THE NASA SEAL AND OTHER DEVICES, AND THE CONGRESSIONAL SPACE MEDAL OF HONOR
Subpart 1221.1—NASA Seal, NASA Insignia, NASA Logotype, NASA Program Identifiers, NASA Flags, and the Agency's Unified Visual Communications System
§ 1221.105 Establishment of NASA Program Identifiers.

