• Flight Standards Service Topics
  • Customer Service Initiative
  • Key Officials
  • Programs
  • Civil Aviation Registry
  • Air Transportation Division
    • Branches
      • 121 Air Carrier Operations
      • 135 Air Carrier Operations
      • Air Carrier Training and 142 Training Center
      • National Simulator Program
      • Program Management
      • Voluntary Safety Programs
    • Customer Service Initiative
    • Whistleblower Protection Program
  • Aircraft Maintenance Division
  • Certification & Surveillance Division
  • Flight Technologies & Procedures Division
  • General Aviation & Commercial Division
  • Regulatory Support Division
  • Regional Divisions

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The Program Management Branch is responsible for Title 14 Code of Federal Regulations (CFR) Part 298, Subpart B, Exemptions, for CFR Part 135 On-Demand Air Taxi/Air Carrier Operations.

• OST Form 4507 (PDF) : Air Taxi Operator and Commuter Air Carrier Registration and Amendments Under CFR Part 298 Subpart B.
• OST Form 6410 (PDF) : US Air Carrier Certification of (Liability) Insurance.
• OST Form 6411 (PDF) : Foreign Air Carriers Certificate of Insurance: Policies of Insurance for Aircraft Accident Bodily Injury and Property Damage Liability.

Send completed forms 4507 and 6410 to:
Federal Aviation Administration
Air Transportation Division, AFS-260, Room 831
800 Independence Avenue, SW
Washington, DC 20591

Fax: (202) 267-5229