U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION

Includes: Change 1 effective February 11, 2010
and Change 2 effective October 20, 2011

Section 4. Terms of Reference

1-4-1. WORD MEANINGS

As used in this order:

a. “Shall” or “must” means a procedure is mandatory.

b. “Should” means a procedure is recommended.

c. “May” or “need not” means a procedure is optional.

d. “Will” indicates futurity, not a requirement for application of a procedure.

e. “Shall not” or “must not” means a procedure is prohibited.

f. Singular words include the plural.

g. Plural words include the singular.

h. Miles means nautical miles unless otherwise stated.

i. Times means Coordinated Universal Time (UTC/ZULU) unless otherwise stated.

1-4-2. NOTES

Statements of fact of an introductory or explanatory nature and relating to the use of directive material have been identified and worded as NOTE.

1-4-3. REFERENCES

When another paragraph of this order is referenced in the text, the referenced paragraph number will be printed out in full. When a paragraph is referenced in a Reference subparagraph, the referenced paragraph's title, followed by its number, will be printed in regular type. When other documents and directives are referenced in a Reference subparagraph, the document/directive and the paragraph number will be printed in regular type.

1-4-4. MANUAL CHANGES

When revised, reprinted, or additional pages are issued, they will be marked as follows:

a. Each revised or additional page will show the change number and effective date of the change.

b. Vertical lines in the margin of the text will mark the location of substantive procedural, operational, or policy changes; i.e., when material which affects the performance of duty is added, revised, or deleted.

1-4-5. DEFINITIONS

The terms used in this order and the definitions assigned them for use in the air traffic control system, except as defined below, are contained in the Pilot/Controller Glossary. The Pilot/Controller Glossary is maintained and published in FAAO JO 7110.10, Flight Services; FAAO JO 7110.65, Air Traffic Control; and the Aeronautical Information Manual (AIM).

a. ACCOUNTABILITY LOCATION. This is the location identifier of the location in the NOTAM computer that keeps track of the NOTAM numbering.

b. AERONAUTICAL INFORMATION. Any information concerning the establishment, condition, or change in any component (facility, service, or procedure of, or hazard) of the National Airspace System. This information is published and/or disseminated by means of aeronautical charts, publications, and/or NOTAMs.

c. AIRPORT OPERATING CERTIFICATE. A certificate issued by the FAA, pursuant to 14 CFR Part 139, to airports serving or expected to serve scheduled air carrier operations in aircraft with a seating capacity of more than thirty passengers. These airports are maintained and operated in accordance with an Airport Certification Manual (ACM) prepared by airport management and approved by the FAA.

d. ALASKA SUPPLEMENT. See Supplement.

e. CENTER AREA NOTAM (CAN). CANs are NOTAMs issued on airway changes, temporary flight restrictions (TFRs) and laser light activity that fall within an ARTCCs airspace. CANs will be issued in the FDC format by the USNOF.

f. CERTIFICATED AIRPORT. An airport certificated under 14 CFR Part 139. These airports are so indicated in the Airport/Facility Directory.

g. CHART SUPPLEMENT. See Supplement.

h. LIMITED AIRPORT OPERATING CERTIFICATE. A certificate issued by the FAA, pursuant to 14 CFR Part 139, to airports serving or expected to serve only unscheduled air carrier operations in aircraft with seating capacity of more than thirty passengers. These airports are maintained and operated in accordance with Airport Certification Specification (ACS).

i. NOTAM D. A notice distributed by means of telecommunications containing information concerning the establishment, condition, or change in any aeronautical facility, service, procedure, or hazard, the timely knowledge of which is essential to personnel concerned with flight operations.

j. PACIFIC CHART SUPPLEMENT. See Supplement.

k. SUPPLEMENT (Alaska, Pacific).

1. Alaska. This chart supplement is a joint civil-military flight information publication designed for use with other flight information publications, en route charts, Alaska Terminal publication, USAF TACAN charts covering Alaska and portions of southwestern and northwestern Canada, World Aeronautical Charts, and sectional aeronautical charts. The Supplement contains an Airport/Facility Directory of all airports (including certificated (14 CFR Part 139) airports shown on en route charts and those required by appropriate agencies), communications data, navigational facilities, special notices, and procedures applicable to the area of chart coverage.

2. Pacific. This chart supplement is a civil flight information publication, designed for use with flight information publications, en route charts and the sectional aeronautical chart covering the State of Hawaii and that area of Pacific served by U.S. facilities. The Supplement contains an Airport/Facility Directory of all airports (including certificated (14 CFR Part 139) airports open to the public and those requested by appropriate agencies), communications data, navigational facilities, special notices and procedures applicable to the Pacific area.

l. TIE-IN STATION. A flight service station designated to provide prescribed services for civil, military, national and international facilities; e.g., NOTAM purposes and flight information messages.

NOTE-
Facilities shall avoid duplication of published data.