14 C.F.R. § 1221.111 Use of the NASA Logotype.
Title 14 - Aeronautics and Space
The NASA Logotype has been retired and is used only in an authentic historical context, and only with prior written approval of the NASA Administrator.
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
§ 1221.111 Use of the NASA Logotype.