The Complete Hours of Service Guide for 2026

Hours of Service (HOS) regulations are the foundation of commercial trucking compliance. Violating them can mean fines, out-of-service orders, and CSA score damage that follows your record for years. Understanding them completely is non-negotiable for every professional driver.

This guide covers every HOS rule that applies to property-carrying CMV drivers in 2026 — clearly, completely, and without the legal jargon.

What Are Hours of Service Regulations?

Hours of Service rules are federal regulations set by the Federal Motor Carrier Safety Administration (FMCSA) that limit how long commercial motor vehicle (CMV) drivers can drive and work before they must rest.

The purpose is straightforward: fatigued driving kills. HOS rules exist to ensure drivers get adequate rest and that the roads are safer for everyone.

The Core HOS Rules for Property-Carrying Drivers

1. The 11-Hour Driving Limit

This is the most fundamental HOS rule. Once you've used your 11 hours of driving time, you must stop driving — even if you haven't reached your destination.

• The 11-hour clock starts when you begin driving after your 10-hour off-duty period
• Driving time is any time the vehicle is in motion
• Short stops (fuel, scales, brief breaks) do not reset the 11-hour clock
• Only a full 10-hour off-duty period resets it

2. The 14-Hour On-Duty Window

This is often misunderstood. The 14-hour window is a hard wall — it doesn't matter how much driving time you have left. Once 14 hours have elapsed since you came on duty, you cannot drive.

• You come on duty at 6:00 AM
• Your 14-hour window closes at 8:00 PM
• Even if you've only driven 8 hours, you cannot drive after 8:00 PM
• Off-duty time during the day does NOT extend the 14-hour window

• Driving
• Loading/unloading
• Fueling
• Pre/post-trip inspections
• Waiting at a shipper or receiver
• Any other work-related activity

• Sleeper berth time
• Off-duty time (personal time, meals if truly off duty)

3. The 30-Minute Break Requirement

The break must be at least 30 consecutive minutes. It can be taken as:

• Off-duty time
• Sleeper berth time
• On-duty not driving (if you're not required to be in the vehicle)

4. The 10-Hour Off-Duty Requirement

This is what resets your 11-hour driving clock and your 14-hour window. The 10 hours must be consecutive — you can't split them up (with one exception: the sleeper berth provision).

5. The 60/70-Hour On-Duty Limit

Which limit applies to you depends on your carrier:

• 60-hour/7-day rule: Applies to carriers that do NOT operate every day of the week
• 70-hour/8-day rule: Applies to carriers that DO operate every day of the week

You can reset your 60/70-hour clock by taking at least 34 consecutive hours off duty (the "34-hour restart").

The Sleeper Berth Provision

If your truck has a sleeper berth, you have additional flexibility through the sleeper berth provision.

How It Works

You can split your required 10-hour off-duty period into two parts:

• One period must be at least 8 consecutive hours in the sleeper berth
• The other period must be at least 2 consecutive hours (either in the sleeper berth or off duty)

The two periods together must total at least 10 hours.

The Key Benefit

The sleeper berth provision allows you to "pause" your 14-hour window. During the qualifying sleeper berth period, your 14-hour clock is effectively suspended.

• You come on duty at 6:00 AM
• You drive 5 hours (11:00 AM)
• You take a 2-hour sleeper berth break (1:00 PM)
• You drive 3 more hours (4:00 PM)
• You take an 8-hour sleeper berth period (midnight)
• When you come back on duty, your 14-hour window restarts from when you ended the 2-hour break

The 34-Hour Restart

The 34-hour restart allows you to reset your 60/70-hour on-duty clock by taking at least 34 consecutive hours off duty.

Current Rules (2026)

• The restart must include two periods from 1:00 AM to 5:00 AM (home terminal time)
• You may only use one restart per week (168 hours)

Short-Haul Exemptions

If you qualify as a short-haul driver, you may be exempt from some HOS requirements — including the ELD mandate.

150 Air-Mile Radius Exemption

You qualify if:

• You operate within a 150 air-mile radius of your normal work reporting location
• You return to your work reporting location within 14 hours
• You do not drive after the 14th hour on duty
• You have at least 10 consecutive hours off between shifts
• Your carrier maintains accurate time records

100 Air-Mile Radius Exemption (Non-CDL)

For non-CDL drivers operating within 100 air miles, similar exemptions apply with slightly different requirements.

Agricultural Exemptions

Drivers transporting agricultural commodities within 150 air miles of the source during planting and harvest seasons may qualify for HOS exemptions. Check FMCSA guidance for current seasonal windows.

Adverse Driving Conditions

If you encounter unexpected adverse driving conditions (snow, ice, fog, traffic accidents), you may extend your driving time by up to 2 hours beyond the 11-hour limit.

• Conditions must be unexpected (not forecast when you started)
• You must document the conditions in your log
• The extension applies only to driving time, not the 14-hour window

ELD Requirements

Since December 2017, most CMV drivers are required to use Electronic Logging Devices (ELDs) to record their HOS.

Who Must Use an ELD?

• Drivers required to keep Records of Duty Status (RODS)
• Interstate commerce drivers operating CMVs

Who Is Exempt?

• Drivers using the short-haul exemption (150 air-mile radius)
• Drivers of vehicles manufactured before model year 2000
• Drivers operating under the agricultural exemption
• Drivers using paper logs for 8 or fewer days in a 30-day period

Common HOS Violations and How to Avoid Them

1. Driving Beyond 11 Hours

2. Driving Beyond the 14-Hour Window

3. False Logs

4. Failure to Take Required Break

5. Exceeding 60/70-Hour Limit

HOS Penalties

Violations also add points to your CSA score, which can affect your ability to get loads and your insurance rates.

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