AC90-66A—Recommended Standard Traffic Patterns and Practices for Aeronautical Operations at Airports without Operating Control Towers Pilots use this advisory circular for guidance when flying in the airport traffic pattern.
AC91-45C—Waivers: Aviation Events; Chapter 6: Waiver Provisions Skydivers use this advisory circular for guidance for demo jumps at special events, when a Certificate of Waiver or Authorization is required by FAR Part 105.
AC105-2C—Sport Parachute Jumping This advisory circular provides suggestions to improve sport parachuting safety and disseminates information to assist all parties associated with sport parachuting in complying with FAR Part 105. Note: FAR 105 was revised in July 2001, with renumbering and significant changes, particularly in the areas of jump notification and equipment. AC No: 105-2C does not yet reflect those changes, but USPA is working with the FAA on an update.