Section 2. MTR Route Designation Criteria

1. LIMITATIONS

1. Routes must be limited to the minimum number necessary to support operational requirements as determined by the appropriate military major/type command.
2. To the extent practicable, routes must be designed to accommodate the maximum number of users and activities on the same route.

1. ROUTE IDENTIFICATION

1. Routes must have a designator composed of the prefix “IR” or “VR” followed by a number from the table in subparagraph e, indicating the FAA Service Area in which the route's entry point is located. Alternate route segments established in accordance with paragraph 6-4-5, Alternate Entry, Exit, and End Points, or paragraph 6-7-5, Alternate Entry/Exit/End Points, must be identified by using the basic/principal route designator followed by a letter suffix; e.g., IR101A, IR101B, VR102A, VR102B.
2. Route numbers must not be duplicated, regardless of whether they are IR or VR numbers. Assignment of route numbers must be by the Service Area military representatives.
3. MTRs that include one or more segments above 1,500 feet (AGL) must be identified by three number characters; e.g., IR206, VR207.
4. MTRs with no segment above 1,500 feet (AGL) must be identified by four number characters; e.g., IR1206, VR1207.
5. Route number assignments must be made from the following allocation:

1. If a route is in development, the route's originator must contact the appropriate military representative located in the FAA Service Area in which the route commences to obtain a route number.
2. MTRs are one-way routes. If the route is to be flown in the opposite direction, a separate route designator must be assigned.