[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR93.317] [Page 282] TITLE 14--AERONAUTICSAND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 93--SPECIAL AIR TRAFFIC RULES AND AIRPORT TRAFFIC PATTERNS--Table of Contents Subpart U--Special Flight Rules in the Vicinity of Grand Canyon National Park, AZ Sec. 93.317 Commercial Special Flight Rules Area operation curfew. Unless otherwise authorized by the Flight Standards District Office, no person may conduct a commercial Special Flight Rules Area operation in the Dragon and Zuni Point corridors during the following flight-free periods: (a) Summer season (May 1-September 30)-6 p.m. to 8 a.m. daily; and (b) Winter season (October 1-April 30)-5 p.m. to 9 a.m. daily. [65 FR 17732, Apr. 4, 2000]