14 C.F.R. § 93.315 Requirements for commercial Special Flight Rules Area operations.
Title 14 - Aeronautics and Space
Each person conducting commercial Special Flight Rules Area operations must be certificated in accordance with Part 119 for Part 135 or 121 operations and hold appropriate Grand Canyon National Park Special Flight Rules Area operations specifications. [65 FR 17732, Apr. 4, 2000]
Title 14: Aeronautics and Space
PART 93—SPECIAL AIR TRAFFIC RULES
Subpart U—Special Flight Rules in the Vicinity of Grand Canyon National Park, AZ
§ 93.315 Requirements for commercial Special Flight Rules Area operations.

