FAA-G-8082-22, ch. 11, and FAA-H-8083-25C, ch. 14

The Chart Supplement, explained

The Chart Supplement U.S. is where the FAA prints detailed airport data that does not fit on a sectional chart. Many old study materials still call it the Airport/Facility Directory.

Part 107, explained › Airspace Classification and Operating Requirements · Last reviewed October 25, 2026 against the eCFR and faa.gov. UAV Campus is not affiliated with the FAA.

What is the Chart Supplement, and how do you read it?

The Chart Supplement U.S. (formerly the Airport/Facility Directory) gives the most comprehensive information on a given airport. It covers airports, heliports and seaplane bases open to the public, comes in seven regional books revised every 56 days, and is decoded with the Legend Sample at the front of each book.

What you find in it: the FAA says airport data includes communication frequencies, services available, closed runways and airport construction. Traffic pattern altitude can be taken from it, and so can traffic pattern information and restrictions such as noise abatement. Runway surface and runway slope are noted there too, and parachute jump aircraft operations are published in it.

The AIM adds that the CTAF frequency for a particular airport is contained in the Chart Supplement U.S., and that the availability of an automated UNICOM is published there and on approach charts. The Study Guide says the UNICOM or MULTICOM frequency can be found on the sectional chart by the airport or in the Chart Supplement.

To read an entry, use the "Legend Sample" printed in the front of each book: it lists the information provided and how to decode it. The book is also available digitally at www.faa.gov/air_traffic/flight_info/aeronav. The airspace rule for airports is explained on our 14 CFR 107.41 page.

Sources: FAA-G-8082-22, ch. 11, Chart Supplement U.S. · FAA-H-8083-25C, ch. 14, Sources for Airport Data · FAA-H-8083-25C, ch. 14, Traffic Patterns · FAA-H-8083-25C, ch. 14, Traffic Patterns (noise abatement) · FAA-H-8083-25C, ch. 11, Runway Surface · FAA-H-8083-25C, ch. 11, Runway Slope · FAA-G-8082-22, ch. 2, Parachute Jump Aircraft Operations · FAA-G-8082-22, ch. 7, Radio Communication Procedures · AIM 4-1-9

What the FAA says

FAA-G-8082-22, ch. 11, Chart Supplement U.S.

The Chart Supplement U.S. (formerly Airport/Facility Directory) provides the most comprehensive information on a given airport. It contains information on airports, heliports, and seaplane bases that are open to the public.

FAA-G-8082-22, ch. 11, Chart Supplement U.S.

The Chart Supplement U.S. is published in seven books, which are organized by regions and are revised every 56 days.

FAA-H-8083-25C, ch. 14, Sources for Airport Data

When a pilot flies into a different airport, it is important to review the current data for that airport. This data provides the pilot with information, such as communication frequencies, services available, closed runways, or airport construction.

FAA-H-8083-25C, ch. 14, Traffic Patterns

Pilots can obtain the traffic pattern altitude for an airport from the Chart Supplement U.S. (formerly Airport/Facility Directory).

Sources: FAA-G-8082-22, ch. 11, Chart Supplement U.S. · FAA-G-8082-22, ch. 11, Chart Supplement U.S. · FAA-H-8083-25C, ch. 14, Sources for Airport Data · FAA-H-8083-25C, ch. 14, Traffic Patterns

Exam traps

  • The Chart Supplement U.S. is the new name of the Airport/Facility Directory, so a question using either name means the same book.
  • It covers airports, heliports and seaplane bases that are open to the public.
  • It is published in seven regional books and revised every 56 days, so check that your copy is current.
  • The Legend Sample in the front of each book is what you use to decode an entry.

Quick quiz: 3 questions

Similar to the FAA test, not the actual test questions. Each answer shows its FAA source.

Question 1 of 3

The most comprehensive information on a given airport is provided by

  1. A Notices to Airmen (NOTAMS).
  2. B the Chart Supplements U.S. (formerly Airport Facility Directory).
  3. C Terminal Area Chart (TAC).
Show the answer
Answer: B. the Chart Supplements U.S. (formerly Airport Facility Directory).

(Rote memory item: airport information is located in the Charts Supplement.)

FAA source: FAA-H-8083-25C ch. 14, Chart Supplement U.S.

Question 2 of 3

Information concerning parachute jumping sites may be found in the

  1. A NOTAMs.
  2. B Chart Supplement.
  3. C Graphic Notices and Supplemental Data
Show the answer
Answer: B. Chart Supplement.

All information pertaining to airports can be found in the Charts Supplement, formerly called the Airport Facility Directory (AFD). This includes Parachute Jump Areas.

FAA source: FAA-G-8082-22 ch. 2, Parachute Jump Aircraft Operations

Question 3 of 3

(Figure 23, Area 3) For information about glider operations at Ridgeland Airport, refer to:

FAA testing supplement figure for quiz question 3
Tap the figure to open it full size.
  1. A notes on the border of the chart.
  2. B the Chart Supplement.
  3. C the Notices to Airmen (NOTAM) publication.
Show the answer
Answer: B. the Chart Supplement.

All information related to airports, including glider operations, can be found in the Charts Supplement, formerly known as the Airport Facility Directory (AFD).

FAA source: FAA-G-8082-22 ch. 11, Chart Supplement U.S.

Is the Chart Supplement available online?

Yes. The Study Guide says the Chart Supplement U.S. is also available digitally at www.faa.gov/air_traffic/flight_info/aeronav.

Source: FAA-G-8082-22, ch. 11

Does the Chart Supplement show the CTAF frequency?

Yes. The AIM says the CTAF frequency for a particular airport or area is contained in the Chart Supplement U.S. (and on certain other charts). Our CTAF and UNICOM page explains what the CTAF is.

Source: AIM 4-1-9

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More on this topic: Part 107 airspace and charts, task by task.