HOS in 2026: the rules, the flex you've got, and what FMCSA is still studying

The FMCSA Hours of Service rules in effect for property-carrying drivers in 2026 are the same framework that took effect under the September 2020 final rule, with no substantive amendments since. The core limits — 11-hour drive, 14-hour duty window, 30-minute break, 60/70-hour weekly limits, sleeper berth split flexibility — are stable, and FMCSA’s most recent rulemaking docket on HOS reform closed without an updated proposed rule. The agency has signaled it is studying additional flexibility around the 14-hour clock but no rulemaking is pending.

What changes year to year is enforcement: roadside inspection priorities, the ELD revocation list (which interacts with HOS recording compliance), and the audit and out-of-service criteria the Commercial Vehicle Safety Alliance updates each spring. For 2026 the practical compliance posture is unchanged. The mistakes drivers and carriers are getting cited for are mostly the same mistakes they were getting cited for in 2024.

The 14-hour clock and the 11-hour drive

A property-carrying driver may drive up to 11 hours after 10 consecutive hours off duty. The 11 hours of driving must fall within a 14-consecutive-hour window that starts when the driver first goes on duty. The 14-hour window is a clock, not a duty-hour total — meal breaks, fueling, loading delays, and any other on-duty-not-driving time burns through it without extending the deadline.

The 14-hour clock can be paused only in two ways under current rules. The first is the adverse driving conditions exception, which permits up to two additional driving hours when conditions could not have been known in advance. The second is the split-sleeper berth provision, which restarts the math in a more complex way.

The 30-minute break, since the 2020 final rule, must be taken after 8 cumulative hours of driving without at least a 30-minute interruption. The interruption can be any non-driving status — on-duty-not-driving counts, off-duty counts, sleeper berth counts. That change from the pre-2020 rule, which required off-duty status specifically, is the single largest piece of flexibility most drivers underuse. A 30-minute fuel stop or shipper wait that you log correctly as on-duty-not-driving satisfies the break requirement.

Sleeper berth split flexibility

The 2020 rule introduced the 7/3 split alongside the long-standing 8/2 split. Under either split, two qualifying off-duty periods can be combined to satisfy the 10-hour rest requirement, and the time spent in the shorter of the two periods does not count against the 14-hour clock when it is taken.

The practical mechanics: take at least 7 hours in the sleeper berth, then later take at least 2 hours either off-duty or in the sleeper berth (8/2 also remains valid in the inverse). Neither period restarts the 14-hour window on its own. Together they constitute the equivalent of a 10-hour break, and the calculation rolls forward so that the driver’s available drive and duty time are recomputed at the end of the second qualifying period.

The provision is most useful for drivers running shipper appointments that don’t align with a clean 10-hour reset — a 7-hour rest in the berth between two appointments, followed by a 2-hour break later in the day, can preserve drive hours that a single short break would forfeit. The downside is that the math is genuinely confusing and most ELDs display the split clearly only after the second qualifying period closes.

What FMCSA is studying

The 2020 final rule rejected proposals to allow a one-time pause of the 14-hour clock for personal conveyance or for shipper detention. FMCSA has continued to take public comment on those provisions and on whether to formalize detention-time exemptions, but as of the most recent rulemaking agenda update, no proposed rule is in the pipeline. The agency’s HOS Working Group, reconstituted in 2023, has met but produced no consensus recommendations that have moved into formal rulemaking.

The detention question is the one that affects drivers most directly day to day. Industry estimates put average shipper detention beyond the standard two hours of free time at 3 to 5 hours per affected pickup or delivery, with no compensation for the lost drive time. The proposed framework would have allowed drivers to “stop the 14-hour clock” during documented detention, but the rulemaking has not advanced.

What to do

Use the 30-minute break as on-duty-not-driving when fueling or waiting at a shipper. Logging it correctly preserves drive time you’d otherwise lose to a separate off-duty break. Use the split-sleeper provision when shipper appointments break your day awkwardly — the math is annoying but the time savings are real. Know the adverse driving conditions exception and document the conditions in the ELD comments when you invoke it; a roadside officer who pulls your logs will look for the note.

The single biggest HOS-related violation cited at roadside is still “form and manner” — incomplete or missing log entries, including unrecorded on-duty time at the start or end of a shift. ELDs handle most of this automatically, but personal conveyance, yard moves, and post-trip inspection time still require driver action to log correctly. The fines aren’t large for first offenses, but the violations show up on the carrier’s CSA score and on the driver’s PSP record, and both follow you to the next job.