AIP ENR 1.11−1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 1.11 [RESERVED]
AIP ENR 1.12−1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 1.12 Interception of Civil Aircraft,
National Security, and Interception Procedures
1. National Security
1.1National security in the control of air traffic is
governed by 14 CFR Part 99.
1.2All aircraft entering domestic U.S. airspace from
points outside, must provide for identification prior to
entry. To facilitate early aircraft identification of all
aircraft in the vicinity of U.S. and international
airspace boundaries, Air Defense Identification
Zones (ADIZ) have been established. (See
FIG ENR 1.12−1).
1.3Operational requirements for aircraft operations
associated with an ADIZ are as follows:
1.3.1Flight Plan.Except as specified in subparagraphs
1.5 and 1.6 below, an IFR or DVFR flight plan
must be filed with an appropriate aeronautical facility
as follows:
1.3.1.1Generally, for all operations that enter an
ADIZ.
1.3.1.2For operations that will enter or exit the U.S.
and which will operate into, within or across the
contiguous U.S. ADIZ regardless of true airspeed.
1.3.1.3The flight plan must be filed before departure
except for operations associated with the Alaskan
ADIZ when the airport of departure has no facility for
filing a flight plan, in which case the flight plan may
be filed immediately after takeoff or when within
range of the aeronautical facility.
1.3.2Two−way Radio.For the majority of operations
associated with an ADIZ, an operating two−way
radio is required. See 14 CFR Section99.1 for
exceptions.
1.3.3Transponder Requirements.Unless otherwise
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 capability
(Mode C), and that transponder must be turned
on and set to reply on the appropriate code or as
assigned by ATC.
1.3.4Position Reporting
1.3.4.1For IFR flight.Normal IFR position
reporting.
1.3.4.2For DVFR flights.The estimated time of
ADIZ penetration must be filed with the aeronautical
facility at least 15 minutes prior to penetration except
for flight in the Alaskan ADIZ, in which case report
prior to penetration.
1.3.4.3For inbound aircraft of foreign registry.
The pilot must report to the aeronautical facility at
least 1 hour prior to ADIZ penetration.
1.3.5Aircraft Position Tolerances
1.3.5.1Over land, the tolerance is within plus or
minus 5 minutes from the estimated time over a
reporting point or point of penetration and within
10NM from the centerline of an intended track over
an estimated reporting point or penetration point.
1.3.5.2Over water, the tolerance is plus or minus
5minutes from the estimated time over a reporting
point or point of penetration and within 20 NM from
the centerline of the intended track over an estimated
reporting point or point of penetration (to include the
Aleutian Islands).
1.3.6Land−Based ADIZ.Land−Based ADIZ are
activated and deactivated over U.S. metropolitan
areas as needed, with dimensions, activation dates
and other relevant information disseminated via
NOTAM.
1.3.6.1In addition to requirements outlined in
subparagaphs 1.3.1 through 1.3.3, pilots operating
within a Land−Based ADIZ must report landing or
leaving the Land−Based ADIZ if flying too low for
radar coverage.
1.3.6.2Pilots unable to comply with all requirements
shall remain clear of Land−Based ADIZ. Pilots
entering a Land−Based ADIZ without authorization
or who fail to follow all requirements risk
interception by military fighter aircraft.
ENR 1.12−2 AIP
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