Hours of Service Math
FMCSA 49 CFR 395 drive time, 14-hour window, 70/8 cap, and 30-min break.
Formula and source
FMCSA 49 CFR 395.3: 11-hour driving limit, 14-hour on-duty window, 30-min break required after 8 cumulative hours of driving without a 30-min interruption, and either 70 hours / 8 days or 60 hours / 7 days depending on carrier election.
FMCSA 49 CFR 395.3 by section.
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