14 C.F.R. § 73.1 Applicability.
Title 14 - Aeronautics and Space
The airspace that is described in subpart B and subpart C of this part is designated as special use airspace. These parts prescribe the requirements for the use of that airspace.
Title 14: Aeronautics and Space
PART 73—SPECIAL USE AIRSPACE
Subpart A—General
§ 73.1 Applicability.