301-10.302 How do I determine distance measurements for my travel
§ 301-10.302 How do I determine distance measurements for my
travel?
If you travel by
The distance between your
origin and destination is
Privately owned
automobile or privately owned motorcycle
As shown in paper or
electronic standard highway mileage guides, or the actual miles
driven as determined from odometer readings.
Privately owned
aircraft
As determined from charts
issued by the Federal Aviation Administration (FAA). You may
include in your travel claim with an explanation any additional air
mileage resulting from a detour necessary due to adverse weather,
mechanical difficulty, or other unusual conditions. If a required
deviation is such that airway mileage charts are not adequate to
determine distance, you may use the formula of flight time
multiplied by cruising speed of the aircraft to determine distance.
You must convert nautical miles to statute or regular miles when
submitting a claim (1 nautical mile equals 1.15077945 statute
miles).