Restrictions.
CFR · 2024-01-01 · US · Title 14
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.
official document · source cfr-2024 · id 14:§ 73.13