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AIM

10/12/17

5−6−2

National Security and Interception Procedures

a location inside the U.S., its territories or

possessions.

g. Transit or transiting  U.S. territorial airspace

means any flight departing from a location outside of

the U.S., its territories or possessions, which operates

in U.S. territorial airspace en route to a location

outside the U.S., its territories or possessions without

landing at a destination in the U.S., its territories or

possessions.

h. Aeronautical facility, for the purposes of this

section, means a communications facility where

flight plans or position reports are normally filed

during flight operations.

5−6−4. ADIZ Requirements

a. To facilitate early identification of all aircraft in

the vicinity of U.S. airspace boundaries, Air Defense

Identification Zones (ADIZ) have been established.

All aircraft must meet certain requirements to

facilitate early identification when operating into,

within, and across an ADIZ, as described in

14 CFR 99.

b. Requirements for aircraft operations are as

follows:

1. Transponder Requirements. Unless other-

wise authorized by ATC, each aircraft conducting

operations into, within, or across the contiguous U.S.

ADIZ must be equipped with an operable radar

beacon transponder having altitude reporting capa-

bility, and that transponder must be turned on and set

to reply on the appropriate code or as assigned by

ATC. (See 14 CFR 99.13, Transponder−On Require-

ments, for additional information.)

2. Two−way Radio. In accordance with

14 CFR 99.9,  Radio Requirements, any person

operating in an ADIZ must maintain two−way radio

communication with an appropriate aeronautical

facility. For two−way radio communications failure,

follow instructions contained in 14 CFR 99.9.

3. Flight Plan. In accordance with

14 CFR 99.11,  Flight Plan Requirements, and

14 CFR 99.9, except as specified in subparagraph

5−6−4e, no person may operate an aircraft into,

within, or from a departure point within an ADIZ,

unless the person files, activates, and closes a flight

plan with an appropriate aeronautical facility, or is

otherwise authorized by air traffic control as follows:

(a) Pilots must file an Instrument Flight Rules

(IFR) flight plan or file a Defense Visual Flight Rules

(DVFR) flight plan containing the time and point of

ADIZ penetration;

(b) The pilot must activate the DVFR flight

plan with U.S. Flight Service and set the aircraft

transponder to the assigned discrete beacon code

prior to entering the ADIZ;

(c) The IFR or DVFR aircraft must depart

within 5 minutes of the estimated departure time

contained in the flight plan, except for (d) below;

(d) If the airport of departure within the

Alaskan ADIZ has no facility for filing a flight plan,

the flight plan must be filed immediately after takeoff

or when within range of an appropriate aeronautical

facility;

(e) State aircraft (U.S. or foreign) planning to

operate through an ADIZ should enter ICAO Code M

in Item 8 of the flight plan to assist in identification

of the aircraft as a state aircraft.

c. Position Reporting Before Penetration of

ADIZ.
In accordance with 14 CFR 99.15, Position Reports,

before entering the ADIZ, the pilot must report to an

appropriate aeronautical facility as follows:

1. IFR flights in controlled airspace. The pilot

must maintain a continuous watch on the appropriate

frequency and report the time and altitude of passing

each designated reporting point or those reporting

points specified or requested by ATC, except that

while the aircraft is under radar control, only the

passing of those reporting points specifically

requested by ATC need be reported. (See

14 CFR 91.183(a), IFR Communications.)

2. DVFR flights and IFR flights in uncon-

trolled airspace:

(a) The time, position, and altitude at which

the aircraft passed the last reporting point before

penetration and the estimated time of arrival over the

next appropriate reporting point along the flight

route;

(b) If there is no appropriate reporting point

along the flight route, the pilot reports at least 15

minutes before penetration: the estimated time,

position, and altitude at which the pilot will penetrate;

or

(c) If the departure airport is within an ADIZ

or so close to the ADIZ boundary that it prevents the