Small Airplanes

Title 14 Code of Federal Regulations (14 CFR)

  • Part 21, Certification Procedures for Products, Articles, and Parts
  • Part 23, Airworthiness Standards: Normal, Utility, Acrobatic, and Commuter Category Airplanes
  • Part 34, Fuel Venting and Exhaust Emission Requirements for Turbine Engine Powered Airplanes
  • Part 36, Noise Standards: Aircraft Type and Airworthiness Certification
  • Part 43, Maintenance, Preventive Maintenance, Rebuilding, and Alteration


  • PS-ACE100-2001-006, Static Strength Substantiation of Composite Airplane Structure
  • PS-ACE100-2001-004, Guidance for Reviewing Certification Plans to Address Human Factors for Certification of Part 23 Small Airplanes

Advisory Circulars (ACs)

Industry Standards


Small Airplanes Issues List (SAIL)

In order to ensure that certification issues are identified upfront for all small airplane projects, the Aircraft Certification Service, Policy and Innovation (P&I) Division maintains a product issues list of known certification-related issues that may require P&I involvement – the Small Airplane Issues List. The Small Airplane Issues List is intended to contain all known certification issues; however, new certification issues are identified periodically. For example, the first time a new design feature is certified on a small airplane, the design feature would not be on the Small Airplane Issues List, but would still require P&I involvement.

Part 23 Amendment 23-64 Implementation Procedures Guide

Civil Aviation Authority of China (CAAC)

European Aviation Safety Agency (EASA)

National Agency for Civil Aviation in Brazil (ANAC)

United Kingdom Civil Aviation Authority (UK CAA)

  • The above EASA Significant Standards Differences (SSD) lists also apply for the UK CAA, if the product is using the EASA CS regulations. If an amendment pairing using the EASA lists is not shown here for your project, the Small Airplane Standards Branch will need to evaluate and develop a new SSD list. If the product is using the English BCARs, contact the Small Airplane Standards Branch before applying for validation.
  • The above EASA Safety/Special Emphasis Items (SEI) lists also apply for the UK CAA.

Technical Standard Orders (TSO)

  • TSO-C22, Safety Belts
  • TSO-C39, 9g Transport Airplane Seats Certified by Static Testing
  • TSO-C114, Torso Restraint Systems
  • TSO-C127, Rotorcraft, Transport Airplane, and Normal and Utility Airplane Seating Systems
Last updated: Thursday, December 15, 2022