AIR TRAFFIC PROCEDURES
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This order prescribes air traffic control procedures and phraseology for use by persons providing airtraffic
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 that are not covered by it.
Terms of Reference
1-2-1. WORD MEANINGS
As used in this order:
or “must” means a procedure is mandatory.
B . “Shall
not” or “must not” means a procedure is prohibited.
means a procedure is recommended.
d. “May” or “need not” means a procedure is
means futurity, not a requirement for the
application of a procedure.
f. Singular words
include the plural.
g. Plural words
include the singular.
means the airframe, crew members,
separation” means separation in
accordance with the applicable minima in this order.
means indicated altitude mean sea
level (MSL), flight level (FL), or both.
means nautical miles unless otherwise
specified, and means statute miles in conjunction
“bearing,” “azimuth,” “heading,” and
“wind direction” information shall always be
magnetic unless specifically stated otherwise.
when used for ATC operational
activities, is the hour and the minute in Coordinated
Universal Time (UTC). Change to the next minute is
made at the minute plus 30 seconds, except time
checks are given to the nearest quarter minute.
means the runway used by aircraft,
and in discussions of separation standards is
applicable to helipads with accompanying takeoff/
landing courses. (See Pilot/Controller Glossary
o. Flight operations
in accordance with the options
of “due regard” or “operational” obligates the
authorized state aircraft commander to:
1. Separate his/her
aircraft from all other
2. Assure that
an appropriate monitoring agency
assumes responsibility for search and rescue actions;
3. Operate under
at least one of the following
(a) In visual meteorological
(b) Wthin radar
surveillance and radio
communications of a surface radar facility; or
(c) Be equipped
with airborne radar that is
sufficient to provide separation between his/her
aircraft and any other aircraft he/she may be
controlling and other aircraft; or
(d) Operate within
Class G airspace.
(e) An understanding
between the pilot and
controller regarding the intent of the pilot and the
status of the flight should be arrived at before the
aircraft leaves ATC frequency.
1. A pilot's
use of the phrase “Going Tactical” does not
indicate “Due Regard.” An understanding between the
pilot and controller regarding the intent of the pilot and the
status of the flight should be arrived at before the aircraft
leaves air traffic control (ATC) frequency.
2. The above
conditions provide for a level of safety
equivalent to that normally given by International Civil
Aviation Organization (ICAO) ATC agencies and fulfills
U.S. Government obligations under Article 3 of the
Chicago Convention of 1944 (Reference (d)), which
stipulates there must be “due regard for the safety of
navigation of civil aircraft” when flight is not being
conducted under ICAO flight procedures.
means Code of Federal Regulations.