Published 2026-03-17 by Max Dmytrov | 10 min read | Category: driver-guides

Tags: HOS rules, hours of service truck drivers, HOS 2026

HOS Rules for Truck Drivers in 2026: Plain-English Guide to Hours of Service

By Max Dmytrov 10 min read Driver Guides

TL;DR: FMCSA's Hours of Service rules cap you at 11 hours of driving inside a 14-hour window, require a 30-minute break after 8 hours of drive time, limit weekly hours to 60 (7-day cycle) or 70 (8-day cycle), and let you reset with a 34-hour restart. This guide breaks each rule down with real examples so you can stay legal, keep your CDL, and avoid costly violations.

Hours of Service rules exist for one reason: to keep fatigued drivers off the road. That's a good goal. The problem is the rulebook reads like it was written by lawyers for other lawyers.

This guide cuts through the legal language. No fluff — just the rules, what they mean in practice, examples you can actually use, and the mistakes that get drivers cited most often.

These rules apply to commercial motor vehicle (CMV) drivers operating in interstate commerce under FMCSA regulations. If you're unsure whether they apply to your operation, check with your carrier or a compliance specialist.

1. The Core HOS Rules Every Driver Must Know

Before drilling into each rule, here's the full picture in one place. Print this out if it helps.

Rule	Limit	Notes
11-Hour Driving Limit	Max 11 hours of driving	Only after 10+ consecutive hours off duty
14-Hour Window	No driving after hour 14	Clock starts the moment you come on duty — off-duty time doesn't pause it
30-Minute Break	Required after 8 cumulative hours of driving	Must be off duty or sleeper berth — on-duty, not driving doesn't count
60-Hour / 7-Day Limit	Max 60 on-duty hours in 7 consecutive days	For carriers that don't operate every day of the week
70-Hour / 8-Day Limit	Max 70 on-duty hours in 8 consecutive days	For carriers operating 7 days a week
34-Hour Restart	Resets weekly cycle after 34+ consecutive off-duty hours	Optional — not required, but useful when you're close to the weekly cap
Sleeper Berth Split	One period of 7–8 hrs in berth + one period of at least 2 hrs	The two periods must add up to 10 hours total
Short-Haul Exception	Within 150 air miles, 14-hour window	No ELD required; driver must return to home terminal each shift
Adverse Driving Exception	Extends driving limit by 2 hours	Applies to unexpected weather or road conditions only

2. The 11-Hour and 14-Hour Rules

These two rules work together. You can't understand one without the other.

The 11-Hour Driving Limit

After 10 consecutive hours off duty, you can drive a maximum of 11 hours. That's your hard ceiling for actual time behind the wheel. Once you hit 11 hours of driving, you're done — full stop. You need another 10 consecutive hours off before you can drive again.

The 14-Hour Window

This is the rule that catches drivers off guard. The moment you come on duty — whether that's driving, doing a pre-trip inspection, waiting at a shipper, or any other on-duty task — a 14-hour clock starts. You cannot drive once that 14-hour window closes, even if you've only logged 6 hours of driving.

Critical point: off-duty time during the day does not pause the 14-hour clock. If you take a 2-hour break at a rest area and log it as off-duty, your 14-hour window keeps ticking. The only exception is the sleeper berth provision (covered in section 6).

Example — A typical driving day:

6:00 AM — Come on duty (pre-trip inspection). 14-hour clock starts.
6:30 AM — Start driving.
11:30 AM — 5 hours of driving logged. Stop for fuel and lunch (off-duty, 1 hour).
12:30 PM — Resume driving.
5:30 PM — 10 hours of driving logged total. Take 30-min break (off-duty).
6:00 PM — Resume driving. Only 1 hour of driving remains.
7:00 PM — Hit 11-hour driving limit. Must stop.
8:00 PM — 14-hour window closes (6AM + 14 hrs). Even if you hadn't hit 11 hours, you couldn't drive past this point.

In this example, the 11-hour limit was the binding constraint. But if you'd spent more time at the dock or waiting, the 14-hour window would have shut you down first.

Common Mistake: Assuming off-duty time during the day "extends" your 14-hour window. It doesn't. If you come on duty at 6 AM, you cannot drive after 8 PM — regardless of how much downtime you took in between. Plan your day with the 14-hour wall in mind.

3. The 30-Minute Break Rule

After 8 cumulative hours of driving time, you must take a break of at least 30 consecutive minutes before you can drive again. The break must be logged as off-duty or sleeper berth time — on-duty not driving (like sitting at a shipper) does not satisfy this requirement.

Note: the 8-hour clock resets after a qualifying 30-minute break, not after every stop. Short fuel stops or quick pickups where you stay on duty don't count.

Example — Break timing:

Drive 4 hours → lunch stop (off-duty, 45 minutes) → drive 4 more hours → break required before driving again.
Drive 4 hours → fuel stop (on-duty not driving, 20 minutes) → drive 4 more hours → still need a break. The on-duty stop didn't reset the 8-hour drive clock.

Common Mistake: Logging a shipper wait as "on-duty not driving" and thinking it counts as a break. It doesn't. The break must be off-duty or sleeper berth. If you're stuck waiting at a dock, log it correctly and know it won't satisfy the break requirement.

4. Weekly Hour Limits: 60/70-Hour Rules

Beyond the daily limits, FMCSA caps the total hours you can be on duty in any rolling 7- or 8-day period.

60-Hour / 7-Day: Used by carriers that do not operate every day of the week. Max 60 on-duty hours across any 7 consecutive days.
70-Hour / 8-Day: Used by carriers operating 7 days a week. Max 70 on-duty hours across any 8 consecutive days.

Your carrier chooses which cycle applies. Once you hit the cap, you cannot drive until enough hours "fall off" the back of the rolling window — or until you complete a 34-hour restart (see section 5).

Example — 70-hour / 8-day cycle:

Say you worked the following hours over the last 7 days: 11, 10, 11, 9, 10, 10, 8 = 69 hours on duty. You have 1 hour left before hitting the 70-hour cap. Once the oldest day (11 hours) drops off the 8-day window, you'll recover 11 hours. Until then, you're nearly tapped out.

Common Mistake: Not tracking the rolling window and discovering mid-week that you've hit the cap. Use your ELD's recap screen daily — not just when you're close to running out. Surprises here are expensive.

5. The 34-Hour Restart

The 34-hour restart is a tool, not a requirement. It lets you completely reset your 60- or 70-hour weekly clock by taking 34 or more consecutive hours completely off duty (or in the sleeper berth).

You don't have to use it. If enough hours fall off your rolling window naturally, a restart isn't necessary. But if you're deep into your weekly hours and need to come back fresh, 34 consecutive hours off resets the counter to zero.

Example — Restart in practice:

You've used 68 of your 70 weekly hours by Thursday evening. Friday and Saturday off (let's say 36 hours) qualifies as a 34-hour restart. You come back Sunday with a full 70 hours available.

One thing to note: there are no longer mandatory overnight requirements (1:00–5:00 AM) for the restart. The 2020 rule changes removed those restrictions, so any 34+ consecutive off-duty period qualifies.

6. Sleeper Berth Rules

If you have a sleeper berth, you can split your required 10-hour off-duty period into two separate chunks. This gives you more flexibility on long hauls.

How the split works:

One period must be at least 7 hours in the sleeper berth (but no more than 8, since the two must add to 10).
The other period must be at least 2 hours — either in the sleeper berth or off duty.
Together, the two periods must total at least 10 hours.

The critical benefit: neither period counts against your 14-hour driving window. This means a qualifying sleeper berth split effectively pauses the 14-hour clock, giving you more flexibility to manage long hauls without running out of window.

Example — Sleeper berth split:

8:00 AM — Come on duty. 14-hour clock starts.
4:00 PM — After 8 hours, take a 2-hour sleeper berth rest (qualifying split — 2+ hours). 14-hour clock pauses.
6:00 PM — Back on duty. 14-hour clock resumes from where it paused.
10:00 PM — Take 8-hour sleeper berth rest (main period of the split).
6:00 AM — After both sleeper periods total 10 hours, your 11-hour driving and 14-hour window both reset.

Common Mistake: Confusing the sleeper berth split with just "taking a nap." Both periods must meet the minimum time requirements and be properly logged as sleeper berth time. Logging a 90-minute rest as sleeper berth and expecting it to pause your 14-hour clock won't work — and it's a falsification violation if you do it anyway.

7. HOS Exceptions

FMCSA provides several exceptions for situations where the standard rules would be impractical or unnecessarily restrictive.

Short-Haul Exception

If you operate within a 150-air-mile radius of your home terminal, return to that terminal each day, and your carrier has a record of your hours, you may qualify for the short-haul exception. Under this exception:

No ELD is required (paper logs or timecards acceptable)
The 30-minute break requirement does not apply
You still must comply with the 11-hour driving limit and 14-hour window
You cannot use this exception on more than 8 days in any 30-day period if you occasionally operate beyond 150 miles

Adverse Driving Conditions Exception

If you encounter unexpected adverse driving conditions — snow, ice, fog, flooding, or a road accident that slows traffic — that weren't foreseeable at the start of your trip, you can extend your driving limit by up to 2 hours.

This extends the 11-hour driving limit to 13 hours
This extends the 14-hour window to 16 hours
It does not apply to conditions you knew about before starting (e.g., a forecasted blizzard)
You must note the reason in your log

Emergency Exception

In declared emergencies, FMCSA may issue waivers or exemptions that temporarily suspend certain HOS rules for drivers providing relief. Always verify current waivers through official FMCSA channels during emergencies.

Agricultural and Oilfield Exceptions

Specific exceptions exist for certain agricultural hauling during planting and harvesting seasons, and for oilfield operations. These are narrow and operation-specific — confirm with your carrier or a compliance attorney if you think they apply to you.

8. Most Common HOS Violations

FMCSA data consistently shows the same violations coming up in roadside inspections and audits. Here are the ones that get drivers cited most often.

1. Driving Beyond 11 Hours

The most straightforward violation — and still one of the most common. ELDs have reduced this, but it still happens when drivers push through fatigue or miscalculate their available hours. An 11-hour violation is an out-of-service condition: you will be parked until you have 10 consecutive hours off.

2. False Logs / ELD Tampering

Falsifying logs is a federal offense. This includes editing ELD data without a legitimate reason, logging personal conveyance (PC) when the trip doesn't qualify, or having a co-driver log drive time that wasn't actually theirs. Penalties include fines and potential CDL disqualification.

3. Skipping or Miscounting the 30-Minute Break

Drivers get cited for logging an on-duty not driving period as a qualifying break, or for not taking a break at all after 8 hours of driving. The break must be off-duty or sleeper berth — no exceptions.

4. Exceeding the 14-Hour Window

Driving after the 14-hour window closes — even if you haven't hit 11 hours of drive time — is a violation. This often happens when a driver spends more time at a shipper than expected and doesn't recalculate their available drive window.

5. 60/70-Hour Limit Violations

Running over the weekly cap is less common with ELDs but still happens, especially when drivers switch carriers or work for multiple carriers simultaneously. Your ELD tracks hours for one carrier — hours worked for another in the same week still count.

Pro Tip: If you're job hunting or switching carriers, your employment history — including your safety record — matters more than ever. Carriers check driving records and compliance history before they hire. A clean HOS record isn't just about avoiding fines; it's a professional asset. See how employment verification works in trucking to understand what future employers can and will see.

9. Frequently Asked Questions

Does the 14-hour clock reset if I take a long off-duty break during the day?

No. Off-duty time during the day does not pause or reset the 14-hour window. The only way to pause the 14-hour clock is through a qualifying sleeper berth split. If you came on duty at 7 AM, you cannot drive after 9 PM — period.

Can I use personal conveyance (PC) to extend my drive time?

Personal conveyance is for travel in a CMV for personal reasons — not for moving loads or advancing the carrier's operational goals. Using PC to drive to a shipper, pick up a load, or extend your effective drive time is a federal violation. FMCSA guidance is clear: the vehicle must be off dispatch, and the movement must be genuinely personal (like driving to a truck stop or motel after going off duty).

What happens if I get placed out of service for an HOS violation?

You'll be parked until you've completed the required off-duty time — usually 10 consecutive hours for an 11-hour or 14-hour violation. The violation gets entered into your safety record, your carrier's CSA score takes a hit, and depending on severity, you may face a civil penalty. Multiple out-of-service events can affect your CDL and employability.

Are HOS rules different in Canada?

Yes. Canada has its own Hours of Service regulations governed by Transport Canada, and they differ from FMCSA rules in several ways — including different daily and cycle limits. If you cross the border, you need to comply with the rules of the jurisdiction you're operating in. Don't assume U.S. rules apply in Canada or vice versa.

Do HOS rules apply to short local runs?

If you operate within 150 air miles of your home terminal and return daily, you may qualify for the short-haul exception — which eliminates the ELD requirement and the 30-minute break rule. You still need to comply with driving hour limits. If you exceed 150 air miles even once in a day, standard HOS rules apply for that day.

Have HOS rules changed for 2026?

As of early 2026, no new major HOS rule changes have taken effect. The current framework reflects the 2020 FMCSA final rule — which relaxed the 34-hour restart requirements, revised the sleeper berth split options, and updated the short-haul exception — plus subsequent adjustments. Always verify current rules with FMCSA.dot.gov, as regulations can change with notice periods.

The Bottom Line

HOS rules aren't going away, and with ELDs mandatory on most trucks, the days of fudging a paper log are over. The drivers who stay out of trouble are the ones who plan their day around the 14-hour window, track their weekly hours proactively, and know which exceptions actually apply to their operation.

A clean driving record isn't just about avoiding fines. It's what you take with you to every new job. Carriers screen for HOS violations, out-of-service events, and log falsification during hiring. If you're thinking about your next move — or about what your current record looks like — that matters.

Looking for carriers who take driver safety seriously? Oculus Reviews helps you research companies before you sign, so you know what you're walking into. Browse verified carrier profiles on Oculus Reviews →

This article is for informational purposes only and reflects FMCSA regulations as of early 2026. HOS rules are subject to change. Always verify current requirements at fmcsa.dot.gov or consult a qualified compliance professional for your specific operation.