Federal Aviation Regulations

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The Federal Aviation Regulations, or FARs, are rules prescribed by the Federal Aviation Administration (FAA) governing all aviation activities in the United States. The FARs are part of Title 14 of the Code of Federal Regulations (CFR). A wide variety of activities are regulated, such as airplane design, typical airline flights, pilot training activities, hot-air ballooning, lighter-than-air aircraft, man-made structure heights, obstruction lighting and marking, and even model rocket launches and model aircraft operation. The rules are designed to promote safe aviation, protecting pilots, passengers and the general public from unnecessary risk. They are also intended to protect the national security of the United States, especially in light of the September 11, 2001 attacks.



The FARs are organized into sections, called parts due to their organization within the CFR. Each part deals with a specific type of activity. For example, 14 CFR Part 141 contains rules for pilot training schools. The sections most relevant to aircraft pilots and AMTs (Aviation Maintenance Technicians) are listed below. Many of the FARs are designed to regulate certification of pilots, schools, or aircraft rather than the operation of airplanes. In other words, once an airplane design is certified using some parts of these regulations, it is certified regardless of whether the regulations change in the future. For that reason, newer planes are certified using newer versions of the FARs, and in many aspects may be thus considered safer designs.

  • Part 1 – Definitions and Abbreviations
  • Part 13 – Investigation and Enforcement Procedures
  • Part 21 – Certification Procedures for Products and Parts
  • Part 23 – Airworthiness Standards: Normal, Utility, Acrobatic and Commuter Airplanes
  • Part 25 – Airworthiness Standards: Transport Category Airplanes
  • Part 27 – Airworthiness Standards: Normal Category Rotorcraft
  • Part 29 – Airworthiness Standards: Transport Category Rotorcraft
  • Part 33 – Airworthiness Standards: Aircraft Engines
  • Part 34 – Fuel Venting and Exhaust Emission Requirements for Turbine Engine Powered Airplanes
  • Part 35 – Airworthiness Standards: Propellers
  • Part 39 – Airworthiness Directives
  • Part 43 – Maintenance, Preventive Maintenance, Rebuilding, and Alteration
  • Part 45 – Identification and Registration Marking
  • Part 47 – Aircraft Registration
  • Part 61 – Certification: Pilots, Flight Instructors, and Ground Instructors
  • Part 65 – Certification: Airmen Other Than Flight Crewmembers
  • Part 67 – Medical Standards and Certification
  • Part 71 – Designation of Class A, Class B, Class C, Class D, and Class E Airspace Areas; Airways; Routes; and Reporting Points
  • Part 73 – Special Use Airspace
  • Part 91 – General Operating and Flight Rules
  • Part 97 – Standard Instrument Approach Procedures
  • Part 101 – Moored Balloons, Kites, Unmanned Rockets and Unmanned Free Balloons
  • Part 103 – Ultralight Vehicles
  • Part 105 – Parachute Operations
  • Part 119 – Certification: Air Carriers and Commercial Operators
  • Part 121 – Operating Requirements: Domestic, Flag, and Supplemental Operations
  • Part 125 – Certification and Operations: Airplanes Having a Seating Capacity of 20 or More Passengers or a Payload Capacity of 6,000 Pounds or More
  • Part 133 – Rotorcraft External-Load Operations
  • Part 135 – Operating Requirements: Commuter and On Demand Operations and Rules Governing Persons on Board Such Aircraft
  • Part 136 – Commercial Air Tours and National Parks Air Tour Management
  • Part 137 – Agricultural Aircraft Operations
  • Part 139 – Certification of Airports
  • Part 141 – Flight Schools
  • Part 142 – Training Centers
  • Part 145 – Repair Stations
  • Part 147 – Aviation Maintenance Technicians Schools
  • Part 183 – Representatives of The Administrator

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