For 2016 and 2017 the DOT per diem is $63. The special M&IE rates for taxpayers in the transportation industry are $63 for any locality of travel in the continental United States (CONUS) and $68 for any locality of travel outside the continental United States (OCONUS).
See IRS Notice 2015-63 (
https://www.irs.gov/pub/irs-drop/n-15-63.pdf)
https://www.irs.gov/pub/irs-drop/n-16-58.pdf