Hours of Service Rules directly determine when you can legally drive, when you must stop, and how long you must rest before getting back behind the wheel. These are not suggestions. They are federal law under 49 CFR Part 395, enforced by the Federal Motor Carrier Safety Administration (FMCSA), and violations carry penalties that can reach $16,000 per offense.

Fatigued driving causes thousands of commercial vehicle crashes every year. The FMCSA built these rules specifically to address that risk. Whether you’re a first-year CDL student, a veteran long-haul driver, or an owner-operator managing your own schedule, understanding exactly how these rules work in 2026 is non-negotiable.

This guide covers every layer of HOS compliance:

• The 11-hour, 14-hour, and 60/70-hour limits broken down clearly
• Sleeper berth split mechanics with practical examples
• Every major FMCSA exception and how to use it legally
• ELD requirements and how they enforce your logs automatically
• Real penalty numbers and what violations do to your CSA score

The Core HOS Limits Every CDL Driver Must Know

The FMCSA Hours of Service framework divides commercial drivers into two categories: property-carrying and passenger-carrying. Each category operates under its own set of daily and weekly limits. Most CDL-A truck drivers fall under the property-carrying rules.

Here is a full comparison of both driver categories:

Rule	Property-Carrying Driver	Passenger-Carrying Driver
Maximum driving time	11 hours	10 hours
On-duty window	14 hours	15 hours
Off-duty reset required	10 consecutive hours	8 consecutive hours
30-minute break required	Yes, after 8 cumulative driving hours	No
Weekly hour limit	60 hrs/7 days or 70 hrs/8 days	60 hrs/7 days or 70 hrs/8 days
34-hour restart available	Yes	Yes
ELD required	Yes, with limited exceptions	Yes, with limited exceptions

Property-carrying drivers include operators of tractor-trailers, flatbeds, tankers, refrigerated units, and most freight haulers. Passenger-carrying drivers include motorcoach and charter bus operators.

The 11-Hour Driving Limit

After 10 consecutive hours off duty, a property-carrying driver may drive a maximum of 11 hours. That driving time does not need to be continuous. You can take breaks mid-shift. But once you hit 11 hours of actual driving time across your on-duty window, you cannot drive again until you complete another full 10-hour off-duty reset.

The 14-Hour On-Duty Window

This is where many drivers miscalculate. Your 14-hour on-duty clock starts the moment you go on duty, not when you start driving. Pre-trip inspections, fueling, waiting at a shipper dock, and paperwork all count toward that window.

Even if you only drove 5 hours, once 14 hours pass from your on-duty start time, you cannot legally operate the vehicle. Off-duty breaks taken during the shift do not pause this clock under standard rules. Only sleeper berth splits (covered below) affect it.

The 30-Minute Break Rule: Practical Application

The 30-minute break requirement under 49 CFR 395.3(a)(3)(ii) applies to property-carrying drivers only. You must take this break before or at the 8-hour mark of cumulative driving time.

What many drivers don’t realize is that since the 2020 HOS revisions, this break does not have to be logged as off duty. You can spend those 30 minutes logged as on-duty, not driving. Completing paperwork, waiting for a dock appointment, or performing a vehicle inspection all satisfy the requirement as long as you are not behind the wheel.

This flexibility matters in real operations. If you’re sitting at a busy terminal waiting to be unloaded, that time can serve double duty as your break window and your dock wait time simultaneously.

The break requirement resets after each 10-hour off-duty period. It does not carry over between shifts.

Sleeper Berth Split Rules: The 7/3 Option Explained

The sleeper berth provision under 49 CFR 395.1(g) allows property-carrying drivers who have access to a qualifying sleeper berth to split their required 10-hour off-duty period into two parts. This is one of the most flexible tools in HOS compliance, and also one of the most misunderstood.

How the 7/3 Split Works

To use the split correctly, you must meet three conditions:

1. One rest period must be at least 7 consecutive hours spent in the sleeper berth
2. The other period must be at least 2 hours either in the sleeper berth or off duty
3. Both periods combined must total at least 10 hours

Neither the 7-hour period nor the 2-hour period counts against your 14-hour on-duty window. This is the key benefit. You can park for 3 hours during heavy traffic, take that time as your short split, continue driving, and then complete your 7-hour sleeper rest later. Your 14-hour clock essentially pauses during both qualifying rest periods.

A Realistic Split Scenario

You come on duty at 6:00 a.m. You drive 4 hours. Traffic is heavy approaching a major city, so you pull into a rest area and take a 3-hour sleeper berth break. That 3 hours qualifies as the shorter split period. You come back out and drive another 7 hours. Later, you take your 7-hour sleeper rest. Neither rest period counted against your 14-hour window during those breaks.

If you’re logging these splits manually, errors happen fast. A well-configured ELD tracks split calculations automatically, flagging any period that doesn’t meet the minimum thresholds before you make a mistake that shows up at a weigh station.

For drivers still evaluating ELD options, this complete ELD guide explains how certified devices handle sleeper berth splits, adverse condition flags, and automatic duty status changes based on vehicle movement.

The 60/70-Hour Weekly Limit and 34-Hour Restart

Daily driving limits get the most attention, but the weekly hour limits under 49 CFR 395.3(b) are just as consequential. Once you exceed your weekly cap, you cannot drive until enough time passes to bring your rolling total back under the limit or until you take a qualifying 34-hour restart.

Which Weekly Limit Applies to You

60 hours in 7 consecutive days applies to carriers that do not operate commercial motor vehicles every day of the week.

70 hours in 8 consecutive days applies to carriers that operate every day of the week.

Your carrier designates which cycle applies. You cannot choose between them on a whim. However, you can switch from the 8-day to the 7-day cycle if you take at least 34 consecutive hours off duty first.

Using the 34-Hour Restart Correctly

The 34-hour restart resets your entire 7-day or 8-day hour counter. To qualify:

1. Take at least 34 consecutive hours off duty or in the sleeper berth
2. That 34-hour period must include two separate 1:00 a.m. to 5:00 a.m. windows (local time)
3. You may only use a restart once every 168 hours (7 days)

The two overnight windows are the most commonly missed detail. If you begin your 34-hour restart at 10:00 p.m. Sunday night, your first overnight window runs from 1:00 a.m. to 5:00 a.m. Monday. Your second window must be 1:00 a.m. to 5:00 a.m. Tuesday. That means your restart cannot end before 5:00 a.m. Tuesday at the earliest, even though 34 hours from 10:00 p.m. Sunday would technically expire at 8:00 a.m. Monday.

Plan your restarts around this reality, not just the raw hour count.

Every FMCSA HOS Exception Explained

The FMCSA built several exceptions into 49 CFR 395.1 to account for real-world operations that don’t fit the standard mold. Each exception has specific conditions. Using an exception you don’t qualify for creates a violation rather than preventing one.

Short-Haul Exception: 100 Air-Mile Radius

Under 49 CFR 395.1(e)(1), CDL drivers may skip the ELD requirement and logbook if they:

• Operate within a 100 air-mile radius of their normal work reporting location
• Return to that location and go off duty within 14 hours of coming on duty
• Take at least 10 consecutive hours off duty before the next on-duty period
• Do not drive beyond 11 hours in a day

The 100 air-mile measurement is straight-line distance, not road miles. Dispatchers should verify this precisely. If a driver exceeds the radius even once during a shift, the exception is void for that entire day and a logbook entry is required retroactively.

Non-CDL Short-Haul: 150 Air-Mile Radius

Non-CDL drivers operating vehicles between 10,001 and 26,000 lbs may qualify for a 150 air-mile radius exemption. The same return-to-base and 14-hour conditions apply. A time record must still be maintained but a full RODS logbook is not required.

Adverse Driving Conditions Exception

Under 49 CFR 395.1(b)(1), drivers may extend their driving time by up to 2 additional hours when encountering unexpected adverse conditions. Snow, ice, dense fog, or traffic delays caused by an accident qualify. Conditions that were forecastable at the beginning of the trip do not.

This exception extends your driving limit from 11 hours to 13 hours maximum. It does not extend the 14-hour on-duty window. Drivers must document the adverse conditions in their log and should note the specific conditions that justified the extension.

Agricultural Commodity Exemption

Drivers transporting agricultural commodities from farms or storage facilities may be exempt from most HOS rules during planting and harvest seasons, within a 150 air-mile radius of the source. States define their planting and harvest periods individually, so check your state DOT’s published schedule. Texas, Iowa, Kansas, and California all publish specific season windows annually.

Oilfield Operations Exception

Under 49 CFR 395.1(d), drivers supporting oilfield operations may use a 24-hour restart instead of the standard 10-hour reset under specific conditions involving documented waiting time at a well site. This applies primarily in states like Texas, North Dakota, Oklahoma, and Wyoming where wellsite scheduling creates unpredictable wait periods.

FMCSA Emergency Declarations

When a federal or state emergency is declared, FMCSA issues Emergency Declarations that temporarily waive or modify specific HOS requirements for drivers providing direct emergency relief. These declarations are time-limited, region-specific, and posted publicly at FMCSA.dot.gov. Always verify the active status and geographic scope before relying on an emergency declaration.

HOS Violations: Penalties, Out-of-Service Orders, and CSA Impact

Enforcement of Hours of Service Rules happens primarily through Level I and Level II roadside inspections conducted by state law enforcement under the Commercial Vehicle Safety Alliance (CVSA) standards. Officers review ELD data in real time and can compare current logs against location data, fuel receipts, and toll records.

Here is what violations actually cost:

Violation Type	Penalty Range
Driver HOS violation (per offense)	Up to $16,000
Carrier allowing HOS violation	Up to $16,000 per violation
Egregious or willful violation	Up to $27,756 per offense
ELD non-compliance or tampering	Separate civil penalties, plus HOS violation
Out-of-service violation (driving while OOS)	Up to $27,756

Beyond fines, every HOS violation generates CSA severity weight points in FMCSA’s Safety Measurement System (SMS). These points affect your carrier’s BASIC scores, which are publicly visible. High scores in the HOS BASIC category increase inspection frequency, can trigger FMCSA investigations, and directly impact a carrier’s ability to win freight contracts with large shippers that screen carrier safety data.

For owner-operators, elevated CSA scores also affect insurance premiums. Some specialty freight brokers require minimum SMS scores as a condition of dispatch.

An out-of-service (OOS) order is the most immediate consequence of a serious HOS violation. The driver cannot move the truck until they’ve completed the required off-duty time. That means missed delivery appointments, detention charges, and potential load reassignment at the carrier’s expense.

Keeping compliant goes beyond just knowing the rules. Many fleets now use fleet tracking and telematics systems that monitor HOS status in real time, alert dispatchers when drivers are approaching their limits, and automatically flag potential violations before they happen at a scale station.

Personal Conveyance and Yard Moves: The Two Special Statuses

Two duty status categories in ELD systems fall outside the standard on-duty and off-duty classifications. Both affect how Hours of Service Rules are tracked, and both are frequently misused.

Personal Conveyance

Personal conveyance (PC) allows a driver to move a CMV for personal purposes without that time counting against their HOS. Common examples include driving from a truck stop to a nearby restaurant, moving to a safer or more comfortable parking location, or commuting to a personal residence after being released from duty.

FMCSA guidance is clear: personal conveyance cannot be used to advance a commercial load. The vehicle should be unloaded or the trailer should be a bobtail or empty. Carriers cannot direct drivers to use PC status to extend commercial operations beyond HOS limits. When that happens, it becomes a violation for both the driver and the carrier.

Yard Moves

Yard move (YM) status applies when a driver moves a CMV within a private facility under the direction of an on-site employee, such as spotting trailers at a distribution center. These movements are logged as on-duty, not driving, even though the vehicle is in motion.

Yard move time still counts toward your 14-hour on-duty window and your weekly hour totals. It simply does not count against your 11-hour driving limit. Drivers who forget this distinction sometimes arrive at a receiving facility having used significant yard move time, believing they have more driving hours left than they actually do.

ELD Requirements and HOS Enforcement in 2026

The Electronic Logging Device mandate under 49 CFR Part 395 Subpart B requires most interstate CMV drivers to use an FMCSA-registered ELD. The device must automatically record engine data, driving time, GPS position, and duty status changes based on vehicle movement above 5 mph.

ELDs eliminate the paper log manipulation that was common before the mandate. When a vehicle moves, the ELD records it. When the vehicle crosses a state line, the GPS log reflects it. Officers at weigh stations can pull the data transfer in under 60 seconds via Bluetooth, USB, or web portal.

Drivers still exempt from ELD requirements include:

• Short-haul drivers qualifying under the 100 air-mile exemption
• Driveaway-towaway operators
• Drivers of vehicles manufactured before model year 2000
• Drivers who use paper RODS for no more than 8 days out of every 30

For drivers who do need an ELD, choosing a device that integrates smoothly with your workflow matters more than most people expect. The right setup reduces the mental overhead of compliance so you can focus on driving. Many of the best trucking apps available in 2026 offer built-in ELD functionality alongside load tracking, fuel optimization, and route planning.

Intrastate HOS Rules: What Changes When You Stay In-State

Federal Hours of Service Rules apply specifically to interstate commerce — operations that cross state lines or that are part of an interstate supply chain. If you operate exclusively within one state, that state’s intrastate HOS rules apply instead.

Most states adopt federal rules for simplicity. However, several maintain unique intrastate provisions:

California follows federal HOS rules for most drivers but maintains separate rules under Title 13 of the California Code of Regulations for certain intrastate operations. California’s agricultural exemptions also differ from federal standards in timing and radius.

Texas allows intrastate exemptions for agricultural haulers and oilfield operators that extend beyond federal thresholds. Texas-based carriers operating purely intrastate should review rules published by the Texas Department of Public Safety (DPS).

Alaska has specific provisions for operations in remote areas where standard rest facilities are unavailable, reflecting the unique geography of intrastate freight movement.

If you’re unsure whether your operation qualifies as interstate or intrastate, the FMCSA’s guidance documents at FMCSA.dot.gov clarify the interstate commerce definition in detail. When in doubt, apply federal rules. Defaulting to the stricter standard is always the safer compliance position.

Key Takeaways: Hours of Service Rules Quick Reference

Category	Rule	Key Number
Daily driving limit	Property-carrying drivers	11 hours
On-duty window	Cannot drive after	14th hour
Off-duty reset	Required rest	10 consecutive hours
30-minute break	After cumulative driving of	8 hours
Weekly limit (7-day)	Carriers not operating daily	60 hours
Weekly limit (8-day)	Carriers operating 7 days/week	70 hours
34-hour restart	Consecutive hours required	34 hours + two 1–5 a.m. windows
Sleeper berth split	Minimum longer period	7 hours
Sleeper berth split	Minimum shorter period	2 hours
Short-haul exemption	Radius from home base	100 air miles
Adverse conditions extension	Additional driving hours allowed	2 hours
Max penalty per violation	Driver or carrier	$16,000 to $27,756

Pair this reference with a reliable dash cam to document adverse conditions, inspection encounters, and any incidents that might require exception justification. The best dash cams for truckers in 2026 include GPS timestamp features that can support your logbook entries during a compliance review.

FAQ Section

Conclusion

Hours of Service Rules are not bureaucratic paperwork — they are the direct line between a fatigued driver and a preventable crash. Every limit in 49 CFR Part 395 was written in response to real data about driver fatigue, accident rates, and the physiological limits of human alertness behind the wheel of a 40-ton vehicle.

Four things should stick with you after reading this guide. The 11-hour driving limit and 14-hour window work together, and both must be tracked simultaneously. The sleeper berth 7/3 split is a legitimate and powerful tool for long-haul drivers, but it requires precise logging to use correctly. The short-haul exemption, adverse conditions exception, and agricultural exemptions are real and legal, but each has strict qualifying conditions that must be met before you rely on them. And your ELD is your compliance record — it doesn’t just track hours, it creates the evidentiary trail that either protects you or exposes you during an inspection.

Stay current with any FMCSA guidance updates throughout 2026. Regulations in the trucking industry can shift through rulemaking, emergency declarations, and court decisions. The FMCSA Hours of Service page is a good bookmark to check regularly alongside the official FMCSA site.

This article is for informational purposes only. Always verify current Hours of Service Rules at FMCSA.dot.gov or consult a licensed DOT compliance professional for guidance specific to your operation or fleet.