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United States Department of Transportation United States Department of Transportation

Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
120-38 Transport Category Airplanes Cabin Ozone Concentrations

Provides guidance concerning acceptable means, but not the only means, for an air carrier to demonstrate compliance with the maximum permissible cabin ozone (03) concentrations established by Section 121.578 of the Federal Aviation Regulations.

Active AFS-260 1980-10-10
120-32 Air Transportation of Handicapped Persons

Identifies some of the problems handicapped air travelers face and provides some guidelines to airline personnel to help alleviate these problems.

Active AFS-223 1977-03-25
120-50A Guidelines for Operational Approval of Windshear Training Programs

Provides guidance for approval of low-altitude windshear training for operations under Title 14 of the Code of Federal Regulations, parts 121 and 135.

Active AFS-210 1996-02-09
120-44A Air Carrier First Aid Programs

Provides guidance about first aid program resources, subjects, equipment, and pertinent regulations.

Active AFS-203 2001-06-06
120-60B Ground Deicing and Anti-icing Program

Provides one means, but not the only means, for obtaining approval of a Ground Deicing and Anti-icing Program, and for ensuring compliance with FAR Section 121.629.

Active AFS-220 2004-12-20
120-54A Advanced Qualification Program - (Change 1)

This advisory circular (AC) provides the Federal Aviation Administration (FAA) guidance for approval of an Advanced Qualification Program (AQP) under AQP regulatory guidance.

Active AFS-280 2006-06-23
120-63 Helicopter Simulator Qualification

Provides a suggested means of compliance with the FAR regarding the evaluation and qualification of helicopter simulators to be used in training and checking

Active AFS-205 1994-10-11
120-62 Takeoff Safety Training Aid

Announces the availability of a joint industry/FAA Takeoff Safety Training Aid to help air carriers and pilots increase safety during the takeoff phase of flight.

Active AFS-210 1994-09-12
120-42B Extended Operations (ETOPS and Polar Operations)

States an acceptable means but not the only means for obtaining approval under FAR Section 121.161 for two-engine airplanes to operate over a route that contains a point farther than one hour flying time at the normal one-engine inoperative cruise speed (in still air) from an adequate airport.

Active AFS-220 2008-06-13
120-64 Operational Use & Modification of Electronic Checklists

Provides an acceptable means, but not the only means, to address the processes for approval, operational use, and modification of electronic checklists (ECL) and ECL data by air carriers.

Active AFS-200N 1996-04-24
120-84 Aging Aircraft Inspections and Records Reviews

This advisory circular (AC) provides guidance pertaining to aging aircraft inspections and records reviews accomplished to satisfy the requirements of the Aging Aircraft Safety Final Rule.

Active AFS-309 2004-10-22
120-100 Basics of Aviation Fatigue

Summarizes the content of the FAA international symposium on fatigue, “Aviation Fatigue Management Symposium: Partnerships for Solutions”, June 17-19, 2008; Describes fundamental concepts of human cognitive fatigue and how it relates to safe Provides information on conditions that contribute to cognitive fatigue; and fatigue and/or mitigate the effects of fatigue.

Active AFS-200 2010-06-07
120-98A Operator Information for Incorporating Fuel Tank Flammability Reduction Requirements into a Maintenance or Inspection Program (Including Change 1)

This advisory circular (AC) provides information and describes an acceptable means of compliance (AMC) with the Reduction of Fuel Tank Flammability in Transport Category Airplanes, final rule.

Active AFS-300 2012-06-22
120-111 Upset Prevention and Recovery Training - with Changes

This advisory circular (AC) describes the recommended training for airplane Upset Prevention and Recovery Training (UPRT).

Active AFS-200 2015-04-14
120-72A Maintenance Human Factors Training

1.Provides descriptions of references and training materials to ensure that thereader can assemble a Maintenance Human Factors (MxHF) training programmatched to the applicable needs of their specific organization. 2.Provides many sources of current information to develop, implement,reinforce, and assess MxHF training materials. 3.Streamlines MxHF training development at the local level. 4.Is not mandatory, like any AC, and does not constitute a regulation

Active AFS-300 2017-04-11
120-71B Standard Operating Procedures and Pilot Monitoring Duties for Flight Deck Crewmembers

This advisory circular (AC) provides guidance for the design, development, implementation, evaluation, and updating of standard operating procedures (SOP), and for pilot monitoring (PM) duties.

Active AFS-200 2017-01-10
120-59B Internal Evaluation Programs

This AC provides information and guidance to persons operating under Title 14 of the Code of Federal Regulations (14 CFR) who are designing, developing, and implementing an Internal Evaluation Program (IEP).

Active AFS-200 2018-10-30
120-66C Aviation Safety Action Program

This AC provides guidance for establishing an Aviation Safety Action Program (ASAP). The objective of an ASAP is to encourage employees of air carriers, repair stations, or other entities (collectively referred to as "eligible entities") to voluntarily report safety information that may be critical to identifying potential precursors to accidents.

Active AFS-200 2020-03-31
120-27F Aircraft Weight and Balance Control

This AC provides operators with guidance on how to develop and receive approval for a Weight and Balance (W&B) control program for aircraft and operated under Title 14 of the Code of Federal Regulations (14 CFR) part 91 subpart K (part 91K) , and parts 121, 125, and 135.

Active AFS-200 2019-05-06
120-51E Crew Resource Management Training

Provides FAA guidance for approval of an Advanced Qualification Program (AQP) under SFAR 58.

Active AFS-210 2004-01-22
120-73 Damage Tolerance Assessment of Repairs to Pressurized Fuselages

Provides guidance to operators of certain transport category airplanes operated under 14 CFR Parts 91, 121, 125, and 129.

Active ANM-100 2000-12-14
120-94 Aircraft Electrical Wiring Interconnection Systems Training Program Active ANM-100 1997-11-20
120-87C Use of Child Restraint Systems on Aircraft

This advisory circular (AC) provides information and practices regarding the use of child restraint systems (CRS) on aircraft.

Active AFS-200 2015-09-24
120-61B In-flight Radiation Exposure

This advisory circular (AC) provides basic background information and links to sources of more detailed information that can be used to improve air carrier programs that inform crewmembers about in-flight ionizing radiation exposure.

Active AFS-200 2014-11-21
120-16G Air Carrier Maintenance Programs

This advisory circular (AC) explains what the term “maintenance program” means. Our explanation describes the scope and content of air carrier aircraft maintenance programs.

Active AFS-300 2016-01-04
120-35D Flightcrew Member Line Operational Simulations: Line-Oriented Flight Training, Special Purpose Operational Training, Line Operational Evaluation

This advisory circular (AC) presents guidelines for the design and implementation of Line Operational Simulations (LOS), including Line-Oriented Flight Training (LOFT), Special Purpose Operational Training (SPOT), and Line Operational Evaluation (LOE) for flightcrew members.

Active AFS-200 2015-03-13
120-116 Operations and Airworthiness Considerations for U.S.-Based Leasing Companies Operating U.S.-Registered Large Transport Category Airplanes Which Part 125 Would Apply

This advisory circular (AC) provides additional information and guidance for U.S.-based leasing companies conducting operations of large transport category airplanes with a valid U.S. registration certificate that meet Title 14 of the Code of Federal Regulations (14 CFR) part 125 applicability.

Active AFS-800 2017-10-27
120-117 Voluntary Disclosure Reporting Program for Apparent Violations of the Drug and Alcohol Testing Regulations

Any employer or contractor regulated under Title 14 ofthe Code ofFederal Regulations (14 CFR) part 120 may voluntarily disclose to the Federal Aviation Administration (FAA) violations ofthe drug and alcohol testing regulations under the voluntary disclosure reporting program (VDRP) described in this Advisory Circular (AC).

Active AAM-800 2017-12-20
120-57C Low Visibility Operations/Surface Movement Guidance and Control Systems (LVO/SMGCS)

This AC provides guidance for airport operators when developing an LVO/SMGCS Plan. There may be valid safety and operational reasons for a specific LVO/SMGCS Plan to vary from the AC 120-57 (current edition) guidance due to unique local issues, environmental factors, or volume of traffic operations.

Active AFS-400 2023-09-26
120-102B Incorporation of Electrical Wiring Interconnection Systems Instructions for Continued Airworthiness into an Operator’s Maintenance Program

This AC is not mandatory and does not constitute a regulation. This AC describes an acceptable means, but not the only means, for Title 14 of the Code of Federal Regulations (14 CFR) part 121 certificate holders (CH) and part 129 operators (part 129, § 129.14) of U.S.

Active AFS-300 2024-06-03
120-126A Guidelines to Establish, Implement, and Maintain a DOT/FAA Drug and Alcohol Testing Program

This advisory circular (AC) provides guidelines for establishing, implementing, and maintaining a drug and alcohol testing program in accordance with Title 14 of the Code of Federal Regulations (14 CFR), part 120 and Title 49 of the CFR (49 CFR) part 40.

Active AAM-800 2025-04-08
120-95A Portable Oxygen Concentrators

This advisory circular (AC) explains Federal Aviation Administration (FAA) requirements for the use of portable oxygen concentrators (POC) on board aircraft.

Active AFS-200 2016-05-24
120-114 Pilot Training and Checking (14 CFR Part 121 Subparts N and O, including Appendices E and F)

This advisory circular (AC) provides information regarding pilot training and checking under Title 14 of the Code of Federal Regulations (14 CFR) part 121 subparts N and O, including part 121 appendices E and F.

Active AFS-200 2016-09-29
120-17B Reliability Program Methods—Standards for Determining Time Limitations

This publication provides guidance for developing a reliability program, which are your standards for determining time limitations.

Active AFS-300 2018-12-19
120-119 Voluntary Safety Management System for Other Regulated Entities Transporting Dangerous Goods by Air

This Advisory Circular (AC) provides information for other regulated entities (e.g., entities storing, packaging, handling, shipping, or performing other functions in support of transporting dangerous goods by air in accordance with Title 49 of the Code of Federal Regulations (CFR) parts 171-180) choosing to voluntarily implement a Safety Management System (SMS).

Active AXH-1 2023-08-04
120-85B Carriage of Cargo

This AC provides operators with recommended procedures for managing cargo operations. Developing and using these comprehensive procedures is key to establishing a safe and efficient cargo operation.

Active AFS-200 2022-01-25
120-123 Flightpath Management

This AC provides guidance and recommended practices to operators under Title 14 of the Code of Federal Regulations (14 CFR) parts 121 and 135, as well as part 142 training centers, in developing operational policies, procedures, and training to support effective flightpath management (FPM).

Active AFS-200 2022-11-21
120-121 Safety Risk Management Involving Items in Aircraft Cargo Compartments

This AC provides guidance in performing a safety risk assessment, as part of Safety Risk Management (SRM), associated with the transport of various types of items in the aircraft cargo compartment and the value of considering the inherent hazardous properties of these items.

Active AFS-200 2021-09-01
120-125 Development and Use of an Operator's MEL, NEF Program, and CDL for Operations Under 14 CFR Parts 91K, 121, 125, and 135

This AC provides clarity on minimum equipment list (MEL), nonessential equipment and furnishings (NEF) program, Configuration Deviation List (CDL), and certain Federal Aviation Administration (FAA) requirements regarding the operation of aircraft with inoperative instruments and equipment.

Active AFS-200 2023-11-01
120-77A Performance Rules: Provisions Contained in an Operator Manual Under § 43.13(c)

This AC provides one means, but not the only means, of ensuring that the contemplated maintenance, alteration, or continue-in-service condition is in compliance with applicable regulations and existing policy.

Active AFS-300 2023-10-24
120-92D Safety Management Systems for Aviation Service Providers

This advisory circular (AC) provides information on implementing a Safety Management System (SMS) based on Title 14 of the Code of Federal Regulations (14 CFR) part 5 for aviation service providers operating or applying for a certificate or Letter of Authorization (LOA) to operate under 14 CFR part 91, § 91.147 or part 121 or 135.

Active AFS-900 2024-05-21
120-26P Assignment of Aircraft Call Signs and Associated Telephonies

This Advisory Circular (AC) describes the Federal Aviation Administration (FAA) Air Traffic Organization (ATO) requirements and process for the assignment and authorization for use of aircraft call signs, specifically, International Civil Aviation Organization (ICAO) three-letter designators (3LD), U.S. special designators, local designators, and their associated telephonies.

Active AJR-2 2024-11-14
120-78B Electronic Signatures, Electronic Recordkeeping, and Electronic Manuals

This advisory circular (AC) provides standards and guidance for electronic signatures, electronic recordkeeping, and electronic manual systems.

Active AFS-300 2024-12-11
120-89 Ground Deicing Using Infrared Energy

Provides guidelines and recommendation for deicing aircraft with infrared technology. Also provides means for obtaining approval for the use & inclusion of infrared technology in an operators deicing program.

Active AFS-220 2005-12-13
120-90 Line Operations Safety Audits

Provides the rationale and procedure for conducting an Line Operations Safety Audit (LOSA) at an airline.

Active AFS-230 2006-04-27
120-29A Criteria for Approval of Category I and Category II Weather Minima for Approach

This AC provides an acceptable means, but not the only means, for obtaining and maintaining approval of CAT I & II Weather Minima including the installation and approval of associated aircraft systems.

Active AFS-400 2002-08-12
120-43 The Influence of Beards on Oxygen Mask Efficiency

Provides information about the effects of beards on masks in continuous flow and demand oxygen systems.

Active AFS-220 1987-01-27
120-40B Airplane Simulator Qualification

Provides an acceptable means, but not the only means, of compliance with the Federal Aviation Regulations (FAR) regarding the evaluation of and qualification of airplane simulators used in training programs or airmen checking under Title 14 Code of Federal Regulations (CFR).

Active AFS-205 1991-07-29
120-47 Survival Equipment for use in Overwater Operations

Provides information regarding the survival items that should be carried during aircraft extended overwater operations.

Active AFS-220 1987-06-12
120-12A Private Carriage Versus Common Carriage of Persons or Property

Furnishes FAA personal and interested segments of industry with general guidelines for determining whether current or proposed transportation operations by air constitute private or common carriage.

Active AFS-820 1986-04-24
120-28D Criteria for Approval of Category III Weather Minima for Takeoff, Landing, and Rollout

States an acceptable means, not the only means, for obtaining approval of Category III Landing Weather Minima and low visibility takeoff, including the installation and approval of associated aircraft systems.

Active AFS-400 1999-07-13
120-83 Flight Deck Observer Seat and Associated Equipment

Provides guidance for 14 CFR parts 121, 125, and 135 certificate holders for obtaining an FAA finding regarding the operational safety/suitability of the Flight Deck Observer Seat and Associated Equipment.

Active AFS-220 2004-06-03
120-93 Damage Tolerance Inspections for Repairs and Alterations

This advisory circular (AC) provides guidance material for Type Certificate (TC) Holders, Supplemental Type Certificate (STC) Holders, and operators to comply with requirements in the Aging Airplane Safety Act to ensure the airworthiness of aging airplane parts and components.

Active ANM-100 2007-11-20
120-101 Part 121 Air Carrier Operational Control - Change 1

This advisory circular (AC) provides aviation safety inspectors (ASI) and air carrier management personnel with information to consider regarding certificate management and internal evaluation of operational control functions.

Active AFS-200 2010-06-28
120-79A Developing and Implementing an Air Carrier Continuing Analysis and Surveillance System

This advisory circular (AC) provides information for developing and implementing a Continuing Analysis and Surveillance System (CASS).

Active AFS-300 2010-09-07
120-74B Parts 91, 121, 125, and 135 Flightcrew Procedures During Taxi Operations

This advisory circular (AC) provides guidelines for the development and implementation of standard operating procedures (SOP) for conducting safe aircraft operations during taxiing to avoid causing a runway incursion.

Active AFS-200 2012-07-30
120-104 Establishing and Implementing Limit of Validity to Prevent Widespread Fatigue Damage

This advisory circular (AC)offers guidance on compliance with Title 14 Code of Federal Regulations (14 CFR) 26.21, 26.23, 121.1115, and 129.115.

Active ANM-100 2011-01-10
120-107 Use of Remote On-Ground Ice Detection System

This advisory circular (AC) provides a standard means for a certificate holder to obtain approval for use of a Remote On-Ground Ice Detection System (ROGIDS).

Active AFS-200 2011-01-10
120-97A Incorporation of Fuel Tank System Instructions for Continued Airworthiness into Operator Maintenance or Inspection Programs (Including Change 1)

On May 7, 2001, the Transport Airplane Fuel Tank System Design Review, Flammability Reduction and Maintenance and Inspection Requirements final rule was published in the Federal Register (FR).

Active AFS-300 2012-05-25
120-53B Guidance for Conducting and Use of Flight Standardization Board Evaluations - With Change 1

a. Evaluating Manufactured or Modified Aircraft. It provides a means but not the only means of evaluating manufactured or modified aircraft by the use of standard systems, processes, and tests necessary to determine pilot training and qualification requirements.

Active AFS-100 2013-11-05
120-103A Fatigue Risk Management Systems for Aviation Safety

(1) Describes the basic concepts of Fatigue Risk Management Systems (FRMS), as prescribed in Title 14 of the Code of Federal Regulations (14 CFR) part 117, § 117.7, and how they relate to aviation industry employees safely performing their duties.

Active AFS-220 2013-05-06
120-105A Foreign Terminal Instrument Procedures (FTIP) Acceptance/Review

This advisory circular (AC) establishes guidelines for U.S. operators to use when reviewing Foreign Terminal Instrument Procedures (FTIP).

Active AFS-410 2013-04-18
120-109A Stall Prevention and Recovery Training with Change 1

This advisory circular (AC) provides guidance for training, testing, and checking pilots to ensure correct responses to impending and full stalls.

Active AFS-200 2015-11-24
120-113 Best Practices for Engine Time In Service Interval Extensions - Change 1

This advisory circular (AC) provides information on engine time in service interval extensions.

Active AFS-300 2016-01-06
120-112 Use of Liquid Water Equivalent System to Determine Holdover Times or Check Times for Anti-Icing Fluids

This advisory circular (AC) provides guidance for the Federal Aviation Administration’s (FAA) standard for a Liquid Water Equivalent System (LWES).

Active AFS-200 2015-07-14
120-96A Operations Control Center (OCC) for Helicopter Air Ambulance (HAA) Operations

This advisory circular (AC) provides information and recommendations to assist helicopter air ambulance (HAA) operators with the development, implementation, and integration of an Operations Control Center (OCC).

Active AFS-200 2016-01-07
120-118 Criteria for Approval/Authorization of all Weather Operations for Takeoff, Landing, and Rollout

This advisory circular (AC) provides an acceptable means, but not the only means, for obtaining and maintaining authorization of operations in Category (CAT) I, CAT II, and CAT III landing weather minima and instrument flight rules (IFR) lower-than-standard takeoff minima.

Active AFS-400 2018-07-02
120-91A Airport Obstacle Analysis

This AC describes acceptable methods and guidelines for developing takeoff and initial climbout airport obstacle analyses andin-flight procedures to comply with the intent of the regulatory requirements of Title 14 of the Code of Federal Regulations (14 CFR) part 121, §§ 121.177 and 121.189; part 135, §§ 135.367, 135.379, and 135.398; and other associated one-engine-inoperative (OEI) requirements relatingto turbine-engine-powered airplanes operated under parts 121 and 135.

Active AFS-400 2020-01-13
120-48A Communication and Coordination Between Flightcrew Members and Flight Attendants

This AC provides updated guidance for flight and cabin crews regarding communications during emergency and unusual situations.

Active AFS-200 2020-01-27
120-115 Maintainer Fatigue Risk Management

This advisory circular (AC):

1. Describes the basic concepts of human fatigue and how it relates to safety for aviation maintenance organizations and individual maintainers.

Active AFS-300 2016-12-02
120-68J Pilot Records Database and Pilot Records Improvement Act

This advisory circular (AC) provides operators and pilots with guidance regarding Title 14 of the Code of Federal Regulations (14 CFR) part 111: the Pilot Records Database (PRD) and the Pilot Records Improvement Act of 1996 (PRIA).

Active AFS-200 2021-06-28
120-80B Firefighting of General and High-Energy In-Flight Fires

This AC provides information on the hazards and risks of in-flight fires on transport category aircraft.

Active AFS-200 2023-03-16
120-49B Parts 121 and 135 Certification

This AC provides information and describes one means that would be acceptable to the Administrator for applying for a Title 14 of the Code of Federal Regulations (14 CFR) part 121 or 135 Air Carrier or Operating Certificate.

Active AFS-200 2024-10-07
120-110A Aircraft Secondary Barriers and Alternate Flightdeck Security Procedures

This AC provides an acceptable means, but not the only means, to achieve effective protection of the flightdeck as required by Title 14 of the Code of Federal Regulations (14 CFR) part 121, § 121.584 by implementing a secondary barrier.

Active AFS-200 2023-06-01
120-108A Continuous Descent Final Approach

This AC describes how to use a continuous descent final approach (CDFA) technique on a Nonprecision Approach (NPA), as well as recommended general procedures and training guidelines for implementing CDFA as a standard operating procedure (SOP).

Active AFS-400 2023-03-22
120-124 Continuous Airworthiness Maintenance Program (CAMP) Training Program

This AC explains the scope and detail the Federal Aviation Administration (FAA) expects of a Continuous Airworthiness Maintenance Program (CAMP) Training Program and offers a means (but not the only means) of compliance with Title 14 of the Code of Federal Regulations (14 CFR) part 91, § 91.1433; part 121, § 121.375; and part 135, § 135.433, the regulations requiring maintenance and preventive maintenance training programs.

Active AFS-300 2023-10-24
120-106B Scope and Recommended Content for an Airworthiness Agreement Between a Certificate Holder and a Maintenance Provider

This AC outlines the scope and recommended content for airworthiness agreements between a certificate holder (CH)
and its contract maintenance providers (CMP).

Active AFS-300 2024-06-18
120-76E Authorization for Use of Electronic Flight Bags

This Flight Standards Service (FS) AC contains guidance on the operational use of Electronic Flight Bags (EFB).

Active AFS-400 2024-06-12
120-82 Flight Operational Quality Assurance

Provides guidance on one means, but not necessarily the only means, of developing, implementing, and operating a voluntary Flight Operational Quality Assurance (FOQA) program that is acceptable to the Federal Aviation Administration (FAA).

Active AFS-230 2004-04-12
120-58 Pilot Guide Large Aircraft Ground Deicing

Contains recommendations for ensuring safe operations of large airplanes during icing conditions and guidelines for the development of adequate procedures for the deicing of large airplanes.

Active AFS-200 1992-09-30
120-88A Preventing Injuries Caused by Turbulence

This AC provides information and practices that can be used to prevent injuries caused by turbulence.

Active AFS-200 2006-01-19