34-Hour Restart
An optional HOS provision allowing CDL drivers to reset their weekly on-duty total by taking 34 or more consecutive hours off duty.
The 34-hour restart resets the 60-hour/7-day or 70-hour/8-day calculation. It is not required — drivers can continue working without using it by staying within their remaining weekly hours. Under current rules, the restart does not require two 1–5 a.m. periods (that requirement was suspended). Verify current restart rules with FMCSA, as HOS rules have been revised multiple times.
Last updated: May 28, 2026