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Software & Airborne Electronic Hardware

Policy & Guidance

Advisory Circulars (AC)

  • AC 20-115D, Airborne Software Assurance Using EUROCAE ED-12() and RTCA DO-178()
  • AC 20-148, Reusable Software Components
  • AC 20-152, RTCA, Inc., Document RTCA/DO-254, Design Assurance Guidance for Airborne Electronic Hardware
  • AC 20-156, Aviation Databus Assurance
  • AC 20-170, Chg 1, Integrated Modular Avionics Development, Verification, Integration, and Approval Using RTCA/DO-297 and Technical Standard Order-C153
  • AC 20-171, Alternatives to RTCA/DO-178B for Software in Airborne Systems and Equipment
  • AC 20-174, Development of Aircraft and Systems


  • 8110.49A, Software Approval Guidelines
  • 8110.105A, Simple and Complex Electronic Hardware Approval Guidance

Policy Memos

Technical Standard Orders (TSO)

  • TSO-C153a, Integrated Modular Avionics Hardware Elements

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