FAA Order JO 7110.65 (aka seventy-one ten dot sixty-five, or .65) is an FAA directive that prescribes air traffic control (ATC) procedures and phraseology for use by personnel providing ATC services in the USA. The current version and subsequent lettered versions (as well as changes to the current version) are published according to the publication schedule contained within the order (paragraph 1-1-6), usually every 6 months. [1] The latest version is 7110.65AA. [2]
This order prescribes air traffic control procedures and phraseology for use by persons providing air traffic control services. Controllers are required to be familiar with the provisions of this order that pertain to their operational responsibilities and to exercise their best judgment if they encounter situations not covered by it. It is the FAA's authoritative source concerning ATC matters. [3]
The order is produced in Adobe Portable Document (PDF) and HTML format by FAA's Mission Support Services, Publications & Administration Group, AJV-P12. It is distributed to select offices in Washington headquarters, regional offices, service area offices, the William J. Hughes Technical Center, and the Mike Monroney Aeronautical Center. Copies are also sent to all air traffic field facilities, international aviation field offices, and to the interested aviation public.
The Federal Aviation Administration (FAA) is a U.S. federal government agency within the U.S. Department of Transportation which regulates civil aviation in the United States and surrounding international waters. Its powers include air traffic control, certification of personnel and aircraft, setting standards for airports, and protection of U.S. assets during the launch or re-entry of commercial space vehicles. Powers over neighboring international waters were delegated to the FAA by authority of the International Civil Aviation Organization.
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC is to prevent collisions, organize and expedite the flow of traffic in the air, and provide information and other support for pilots.
In United States and Canadian aviation, the Aeronautical Information Manual (AIM) is the respective nation's official guide to basic flight information and air traffic control procedures.
A flight service station (FSS) is an air traffic facility that provides information and services to aircraft pilots before, during, and after flights, but unlike air traffic control (ATC), is not responsible for giving instructions or clearances or providing separation. They do, however, relay clearances from ATC for departure or approaches. The people who communicate with pilots from an FSS are referred to as flight service specialists.
A UNICOM station is an air-ground communication facility operated by a non-air traffic control private agency to provide advisory service at uncontrolled aerodromes and airports and to provide various non-flight services, such as requesting a taxi, even at towered airports. It is also known as an aeronautical advisory station, with these terms being used mostly in the Americas. The equivalent European/ICAO service is known as (aerodrome) flight information service, abbreviated as AFIS or FIS. From an ICAO perspective, UNICOM, historically most commonly provided by flight service stations, is an implementation of FIS.
An aerodrome beacon, airport beacon, rotating beacon or aeronautical beacon is a beacon installed at an airport or aerodrome to indicate its location to aircraft pilots at night.

The National Air Traffic Controllers Association (NATCA) is a labor union in the United States. It is affiliated with the AFL–CIO, and is the exclusive bargaining representative for air traffic controllers employed by the Federal Aviation Administration (FAA). It also represents a range of workers related to the air traffic control (ATC) industry, and the FAA itself.
In aviation, a non-towered airport is an airport without a control tower, or air traffic control (ATC) unit. The vast majority of the world's airports are non-towered. In the United States, there are close to 20,000 non-towered airports compared to approximately 500 airports with control towers. Airports with a control tower without 24/7 ATC service follow non-towered airport procedures when the tower is closed but the airport remains open, for example at night.
Special use airspace (SUA) is a type of special airspaces in the United States designated for operations of a nature such that limitations may be imposed on aircraft not participating in those operations. Often these operations are of a military nature. The designation of SUAs identifies for other users the areas where such activity occurs, provides for segregation of that activity from other users, and allows charting to keep airspace users informed of potential hazards.
A transponder is an electronic device that produces a response when it receives a radio-frequency interrogation. Aircraft have transponders to assist in identifying them on air traffic control radar. Collision avoidance systems have been developed to use transponder transmissions as a means of detecting aircraft at risk of colliding with each other.
The Boston Consolidated TRACON (A90) is located in Merrimack, New Hampshire. A90 opened in 2004 after 8 years of development. The A90 function transferred to the new Boston Consolidated TRACON on February 22, 2004. The MHT function transferred over on March 7, 2004. Manchester TRACON used to be located at Manchester Airport below the old ATCT. Boston TRACON used to be located at the Logan International Airport Control Tower before being consolidated. The new facility is 63,000 square feet (5,900 m2). A Terminal Radar Approach Control, or TRACON, is responsible for descending airplanes from the ARTCC and lining them up for landing at their destination airport, as well as climbing departures before handing off to the ARTCC.
ATC Zero is an official term used by the U.S. Federal Aviation Administration (FAA) that means the FAA is unable to safely provide the published ATC services within the airspace managed by a specific facility. The term is always used in conjunction with a facility reference. FAA ATC facilities include Air Route Traffic Control Centers (ARTCC); Terminal Radar Control facility (TRACON), Air Traffic Control Tower (ATCT), Flight Service Stations (FSS), or the Air Traffic Control System Command Center (ATCSCC). The term is defined in FAA Order JO 1900.47, Air Traffic Control Operational Contingency Plans. It is one of three designations used by the FAA to describe degraded operations and invoke operational contingency plans.
Wake turbulence categories and wake turbulence groups are defined by the International Civil Aviation Organization for the purpose of separating aircraft in flight, due to wake turbulence.
In United States aviation, MARSA designates the delegation of responsibility for separation of aircraft in flight to military authorities by civilian air traffic control authorities. MARSA is an acronym for Military Authority Assumes Responsibility for Separation of Aircraft.
Mike Monroney Aeronautical Center is a regional office of the United States Federal Aviation Administration on the grounds of Will Rogers Airport in Oklahoma City. With around 7,500 direct federal employees, the Aeronautical Center is one of the Department of Transportation's largest facilities outside the Washington, DC area, and one of the 10 largest employers in the Oklahoma City metropolitan area. It is named for Senator Mike Monroney of Oklahoma, who wrote and sponsored the Federal Aviation Act of 1958.
Kansas City Air Route Traffic Control Center, is one of 22 Federal Aviation Administration (FAA) Area Control Centers. It is located at 250 S. Rogers Rd. Olathe, Kansas, United States.
Aeronautical phraseology is a set of communication rules for simplified English language communication between an air traffic controller and the pilot in command of an aircraft. In the majority of countries, the aeronautical phraseology in use is based on standards developed by the International Civil Aviation Organization.