Hours of Service Rules Explained A Complete HOS Guide for Truck Drivers

You have got 14 hours on the clock. Maybe less, once you count the wait at the shipper. One miscalculation and you are parked roadside, not moving freight.

That is the reality of Hours of Service. Not paperwork, the difference between a delivery that pays and a truck sitting out of service for ten hours because somebody didn't account for detention time.

Let’s talk about the current FMCSA HOS regulations for 2026: 

1. The four core limits, 

2. The weekly cycle, 

3. The exceptions that actually apply, 

4. And what happens when you get it wrong.

What Are the DOT Hours of Service Limits?

Property-carrying CMV drivers must comply with four core limits under 49 CFR Part 395: an 11-hour driving limit, a 14-hour on-duty window, a mandatory 30-minute break after 8 hours of driving, and a 60/70-hour weekly cap.

These stack. If you hit any limit, you are done driving until you have taken the required rest. No exceptions, no negotiating with a scale house officer.

The Daily Limits

11-Hour Driving Limit vs. 14-Hour Duty Window

People mix these up constantly, and the mix-up is what gets drivers cited.

You are legally allowed to drive a maximum of 11 hours. However, you can only trigger this driving clock after you have completed 10 consecutive hours off duty (or in the sleeper berth).

The 14-hour window is different. It's on-duty time, starting the moment you clock in or start driving, whichever comes first. It doesn't stop for anything. Loading, fueling, paperwork, waiting at a dock- all of it eats the window.

Here's the trap: a driver on duty at 6:00 AM has until 8:00 PM to finish all driving, regardless of how much actual driving time they have used. Four hours of your 11-hour limit could still be sitting unused when the 14-hour window locks you out anyway.

Once that window shuts, only another 10-hour off-duty period reopens it. Off-duty time does not extend the window. It resets it.

The 8-Hour Break Rule

After 8 consecutive hours of driving, you need a break - but this rule got noticeably friendlier in 2020, and a surprising amount of content online still describes the old version.

Since the 2020 final rule, the 30-minute break can be satisfied by off-duty time, sleeper berth time, or on-duty-not-driving time. Before that, only off-duty or sleeper berth counted, which made every loading-dock wait dead time for compliance purposes.

In practice: a driver at 7 hours 45 minutes can knock out the break with 30 minutes at the dock. No need to go fully off duty. Small change, real difference on a tight schedule.

The Weekly Cycle

60-Hour/7-Day and 70-Hour/8-Day Limits

Rolling limits, and the math trips up more dispatchers than drivers.

• 60/7: no driving after 60 hours on duty in 7 consecutive days

• 70/8: no driving after 70 hours on duty in 8 consecutive days

• Each day, the oldest day drops off, and the current one gets added

Most long-haul operations run the 70/8 cycle. The concept is simple. Tracking it across dozens of drivers by hand is not easy. That is exactly why most fleets running more than a couple of trucks lean on ELD software to do the rolling math rather than trust a spreadsheet.

The 34-Hour Restart

Once a driver hits the 60/70-hour limit, 34 consecutive hours off duty resets the weekly clock to zero.

Nuance worth knowing: the restart is optional, not mandatory. A driver can also just ride out the rolling window as older days drop off. The restart is a shortcut back to full hours, not a legal requirement.

Install your reliable ELD HOS APP

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Status Tracking and Staying Compliant

Record of Duty Status (RODS) and ELD Mandate Compliance

Most drivers required to keep RODS must use an FMCSA-registered Electronic Logging Device. That's the mandate, in one sentence.

Exemptions are narrower than people assume:

• Drivers using the 150 air-mile short-haul exception

• CMVs manufactured before model year 2000

• Driveaway/towaway operations

• Drivers required to keep RODS only 8 days or less in any 30-day period

Outside those categories, if you are logging hours, you are logging them electronically, and the device matters. The stronger ELDs do not just record hours; they flag an approaching limit before it becomes a violation. They keep the data audit-ready if you are ever pulled for review.

Personal Conveyance Guidelines

Does personal conveyance count as driving time? Not when it is used correctly.

Personal conveyance covers moving the truck for genuinely personal reasons while off duty; a drive to a nearby restaurant, say. And it does not count against driving or on-duty limits. It is also one of the most misused categories in trucking. Using it to relocate closer to your next load instead of for an actual personal reason is exactly the kind of gray-area logging that draws scrutiny during an audit.

Yard Move Status

Yard move covers moving a CMV within a facility's yard, off public roads, tracked separately from both on-duty driving and personal conveyance. It's a small distinction on paper — and a common, entirely avoidable error on the log.

Exceptions Worth Knowing

Split Sleeper Berth Rule

At least 8 hours in the berth, split into two periods, neither shorter than 2 hours — the familiar 7/3 and 8/2 splits.

Worth watching in 2026: FMCSA is running limited six-week pilot programs testing more flexibility. The Flexible Sleeper Berth pilot is testing 6/4 and 5/5 splits, and the Split Duty Period pilot is testing whether drivers can exclude up to 3 hours of certain non-driving time from the 14-hour window. Both are active pilots under a broader "Pro-Trucker Package" - not permanent rules yet, but worth tracking.

Adverse Driving Conditions Exception

Weather turns bad, and this exception gives you room to finish the trip safely instead of getting caught mid-route when the window closes.

It can extend both the driving limit and the on-duty window by up to two hours - but only for conditions you didn't know about before starting. The exception must also be annotated in the ELD before the original limit expires. Miss that annotation window, and the exception simply doesn't apply, no matter how bad the weather actually got.

150 Air-Mile Short-Haul Exception

Short-haul drivers within a 150-air-mile radius of their normal work location get the 14-hour, no-ELD exception, provided they start and end at the same location and stay inside that radius.

This is the exception local delivery drivers lean on most - no ELD requirement, and a simpler duty-status structure overall, as long as the radius and same-location conditions hold.

What Happens When You Violate HOS Rules?

The penalties do not stop at a fine.

• Civil penalties for HOS violations generally run from roughly $1,000 to $11,000 per violation depending on severity. Figures are adjusted periodically, so check FMCSA's current penalty table rather than trust any number you read online, including this one.

• Major violations, like driving beyond the 11-hour, 14-hour, or 60/70-hour limits, and false log entries, carry heavy CSA points that sit on a carrier's safety profile for up to two years

• Out-of-service orders can hit roadside for driving more than 3 hours past a limit. The truck stops where it is until the required off-duty time is completed

• False logs carry some of the harshest penalties of all, and ELD tampering crosses into federal criminal territory entirely separate from the civil HOS fine

A safety rating downgrade from repeat violations doesn't stop at the fine either. It follows the carrier into every insurance renewal and every shipper negotiation for years afterwards.

Choosing the Best ELD and Fleet Management Tools:-

An ELD that just logs hours is doing the bare minimum. The stronger platforms layer in real-time coaching and predictive alerts before a driver nears a limit. They also offer integration with the rest of the fleet management stack, such as DVIRs, maintenance scheduling, driver qualification files, all in one place.

AI dash cams increasingly sit alongside that same compliance setup. They not only log HOS directly, but also, they give fleet managers a second layer of evidence. They are useful during an audit and increasingly relevant as enforcement leans harder into cross-referencing ELD data against supporting documents.

For fleets running more than a handful of trucks, the value is not the logging. It is catching a driver drifting toward a violation before it happens, instead of finding out at the next roadside inspection.

This is exactly where ELD Mandate fits in. Once a driver connects the ELD Mandate app to the ELD hardware device, duty status switches to driving automatic. Remaining hours of service update in real time right on the driver's phone, so nobody's doing mental math against a ticking 14-hour window. Changing duty status between stops takes a couple of taps in the app, not a paper log and a pen.

If you are a fleet operator looking to simplify fleet management alongside HOS compliance, ELD Mandate covers both from one dashboard.

You can schedule a demo or get a personalized quote to see how ELD Mandate keeps your fleet compliant without adding to your dispatchers' workload.

FAQ

Does personal conveyance count as driving time?

No. Used correctly, it is off-duty movement that doesn't count against driving or on-duty limits. If you misuse it to relocate toward your next load, that would be a common compliance red flag.

How many hours can a CDL driver drive in a day?

It is up to 11 hours, after 10 consecutive hours off duty, all within the 14-hour on-duty window.

How does the 34-hour restart work?

If you take 34 consecutive hours off duty, the rolling 60/70-hour weekly clock resets to zero. It's optional, not mandatory. However, it is the fastest path back to a full week of hours.