Federal Aviation Regulations

The rules are designed to promote safe aviation, protecting pilots, flight attendants, passengers and the general public from unnecessary risk.

[1] FAA Order 1320.46C (Advisory Circular System) section 10 (Using references in the text of an AC) para.

This title is available in digital and printed form, and can be referenced online using the Electronic Code of Federal Regulations (e-CFR).

The table of contents, as reflected in the e-CFR updated December 20, 2018:[3] Each title of the CFR is organized into sections, called parts.

The familiar weight and propulsion classifications of small airplane regulations would be replaced by performance and risk-based standards for aircraft weighing less than 19,000 pounds and seating 19 or fewer passengers.

[7] Prior to August 30, 2017, Part 23 had a large number of regulations to ensure airworthiness in areas such as structural loads, airframe, performance, stability, controllability, and safety mechanisms, how the seats must be constructed, oxygen and air pressurization systems, fire prevention, escape hatches, flight management procedures, flight control communications, emergency landing procedures, and other limitations, as well as testing of all the systems of the aircraft.

The Cessna 177, Cirrus SR20 and Piper PA-34 Seneca are well-known airplanes types that were certified to standards set out in FAR Part 23.

Prior to that date, airworthiness standards for airplanes in the normal, utility and acrobatic categories were promulgated in Part 3 of the US Civil Air Regulations.

Many well-known types of light airplane, like the Cessna 150 and Piper Cherokee are certified to these older standards, even though they remained in production after 1965.

Prior to that date, airworthiness standards for airplanes in the transport category were promulgated in Part 4b of the US Civil Air Regulations which was in effect by November 1945.

Effective August 27, 1957, Special Civil Air Regulation (SR) 422 was the basis for certification of the first turbine-powered transport airplanes, such as the Boeing 707, the Lockheed Electra, and the Fairchild 27.

Rotorcraft up to 7,000 lb Maximum takeoff weight and 9 or fewer passengers are type certified in this part.

Rotorcraft with more than 20,000 lb (9,100 kg) maximum takeoff weight must be certified to additional Category A standards defined in this part.

[9] These are the regulations that define the operation of small non-commercial aircraft within the United States, however, many other countries defer to these rules.

Temporary flight restrictions often encompass major sporting events, natural disaster areas, air shows, space launches, and Presidential movements.

Before the September 11, 2001 attacks, most TFRs were in the interest of safety to flying aircraft with occasional small restrictions for Presidential movements.

Since 9/11, TFRs have been routinely used to restrict airspace for 30 nautical miles around the President, with a 10-nautical-mile (18.5 km) radius no-fly zone for non-scheduled flights.

They are also available to other high-profile figures such as presidential and vice-presidential candidates (though not all do so, as Senator John Kerry, who did not ask for any TFR during the 2004 election).

[14] TFRs can also be instituted for special military operations, such as with the 2023 Chinese balloon incident, where the FAA put into place one of the largest airspace restrictions in U.S. history, with an area approximately twice the size of Massachusetts and more than five times the restricted airspace surrounding Washington, D.C.[15] The responsibility for screening requests for TFR and for subsequent granting or denying them, lies with the FAA's Office of System Operations Security.

Part 65 is certification for airmen other than flight crewmembers; such as Air Traffic Control Tower Operators, Aircraft Dispatchers, Mechanics, Repairmen and Parachute Riggers.

Historically, this business model has been used by tour operators and casinos to offer occasional flights between smaller cities and popular leisure destinations.

Example of a presidential TFR surrounding Charleston, South Carolina