EZPerDiem uses two methods to calculate this component of your M&IE deduction
. First it uses the city-by-city
locality rates for each date/location you had layovers. Next it uses the special rate for transportation workers
. Most of the time the city-by-city is higher, but if you overnight in a lot of low-value cities, the special rate may be higher.
EZPerDiem calculates it both ways and gives you the highest.