Title 14 Code of Federal Regulations

• Part 31, Airworthiness Standards: Manned Free Balloons
• Part 43, Maintenance, Preventive Maintenance, Rebuilding, and Alteration
• Part 91, General Operating and Flight Rules

Advisory Circulars (AC)

• 20-41, Substitute Technical Standard Order (TSO) Aircraft Equipment
• 20-45, Safetying of Turnbuckles on Civil Aircraft
• 20-127, Use of Society of Automotive Engineers (SAE) Class H11 Bolts
• 21-16, RTCA, Inc. Document RTCA/DO-160E, Environmental Conditions and Test Procedures for Airborne Equipment
• 21-41, Replacing MIL-S-8879C With SAE AS8879
• 43.13-1, [Large AC. This includes Change 1.] Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair

• Balloon Control Force Guidance (PDF) (Small Airplane Directorate Memorandum, dated Dec 22, 1999)
• Production Flight Test of Balloons (PDF) (Small Airplane Directorate Memorandum, dated Feb 9, 2000)