14 C.F.R. § 73.13 Restrictions.
Title 14 - Aeronautics and Space
No person may operate an aircraft within a restricted area between the designated altitudes and during the time of designation, unless he has the advance permission of (a) The using agency described in §73.15; or (b) The controlling agency described in §73.17.
Title 14: Aeronautics and Space
PART 73—SPECIAL USE AIRSPACE
Subpart B—Restricted Areas
§ 73.13 Restrictions.