5 miles or more; and flights must not be conducted
below a ceiling of less than 3,000 feet AGL.
d. Military training routes will be identified and
charted as follows:
1. Route identification.
(a) MTRs with no segment above 1,500 feet
AGL must be identified by four number characters;
e.g., IR1206, VR1207.
(b) MTRs that include one or more segments
above 1,500 feet AGL must be identified by three
number characters; e.g., IR206, VR207.
(c) Alternate IR/VR routes or route segments
are identified by using the basic/principal route
designation followed by a letter suffix, e.g., IR008A,
VR1007B, etc.
2. Route charting.
(a) IFR Enroute Low Altitude Chart. This
chart will depict all IR routes and all VR routes that
accommodate operations above 1,500 feet AGL.
(b) VFR
Sectional
Aeronautical
Charts. These charts will depict military training
activities such as IR and VR information.
(c) Area Planning (AP/1B) Chart (DOD
Flight Information Publication-FLIP). This chart
is published by the National Geospatial-Intelligence
Agency (NGA) primarily for military users and
contains detailed information on both IR and VR
routes.
REFERENCE-
AIM, Paragraph 9-1-5 , Subparagraph a, National
Geospatial-Intelligence Agency (NGA) Products

e. The FLIP contains charts and narrative
descriptions of these routes. To obtain this
publication contact:
Defense Logistics Agency for Aviation
Mapping Customer Operations (DLA AVN/QAM)
8000 Jefferson Davis Highway
Richmond, VA 23297-5339
Toll free phone: 1-800-826-0342
Commercial: 804-279-6500
This NGA FLIP is available for pilot briefings at FSS
and many airports.
f. Nonparticipating aircraft are not prohibited
from flying within an MTR; however, extreme
vigilance should be exercised when conducting flight

3-5-2

through or near these routes. Pilots should contact
FSSs within 100 NM of a particular MTR to obtain
current information or route usage in their vicinity.
Information available includes times of scheduled
activity, altitudes in use on each route segment, and
actual route width. Route width varies for each MTR
and can extend several miles on either side of the
charted MTR centerline. Route width information for
IR and VR MTRs is also available in the FLIP AP/1B
along with additional MTR (slow routes/air refueling
routes) information. When requesting MTR information, pilots should give the FSS their position, route
of flight, and destination in order to reduce frequency
congestion and permit the FSS specialist to identify
the MTR which could be a factor.
3-5-3. Temporary Flight Restrictions
a. General. This paragraph describes the types of
conditions under which the FAA may impose
temporary flight restrictions. It also explains which
FAA elements have been delegated authority to issue
a temporary flight restrictions NOTAM and lists the
types of responsible agencies/offices from which the
FAA will accept requests to establish temporary
flight restrictions. The 14 CFR is explicit as to what
operations are prohibited, restricted, or allowed in a
temporary flight restrictions area. Pilots are responsible to comply with 14 CFR Sections 91.137, 91.138,
91.141 and 91.143 when conducting flight in an area
where a temporary flight restrictions area is in effect,
and should check appropriate NOTAMs during flight
planning.
b. The purpose for establishing a temporary
flight restrictions area is to:
1. Protect persons and property in the air or on
the surface from an existing or imminent hazard
associated with an incident on the surface when the
presence of low flying aircraft would magnify, alter,
spread, or compound that hazard (14 CFR
Section 91.137(a)(1));
2. Provide a safe environment for the operation
of disaster relief aircraft (14 CFR Section 91.137(a)(2)); or
3. Prevent an unsafe congestion of sightseeing
aircraft above an incident or event which may
generate a high degree of public interest (14 CFR
Section 91.137(a)(3)).

Other Airspace Areas