California Hours of Service Regulations

California has its own hours of service (HOS) rules for drivers who operate entirely within the state. These rules are stricter than federal regulations in several key ways, and they apply to most commercial drivers, even if you normally run interstate. This guide explains the California-specific requirements, how they differ from federal rules, and what you need to do to stay compliant in 2026.

Who Must Follow California HOS Rules?

California’s HOS rules apply to any driver operating a commercial motor vehicle (CMV) wholly within California. A CMV is defined as a vehicle with a gross vehicle weight rating (GVWR) or gross combination weight rating (GCWR) of 10,001 pounds or more, or a vehicle designed to transport 15 or more passengers (including the driver). This includes straight trucks, tractors, and buses.

If you cross state lines, you fall under federal FMCSA rules, but you must still comply with California’s meal and rest break laws, which are separate from HOS. The California Department of Motor Vehicles (DMV) enforces intrastate HOS, while the California Highway Patrol (CHP) enforces them on the road.

Key Differences from Federal HOS Rules

California’s rules are more restrictive than federal rules in three main areas: driving time, on-duty time, and meal breaks. Here’s a comparison:

Rule	Federal (FMCSA)	California Intrastate
Maximum driving time	11 hours after 10 consecutive hours off duty	12 hours within a 24-hour period
Maximum on-duty time	14 hours after coming on duty	12 hours within a 24-hour period
Minimum off-duty time	10 consecutive hours	10 consecutive hours
Meal break	Not required (except for certain states)	30 minutes before exceeding 5 hours of work
Rest break	Not required	10 minutes for every 4 hours worked
Sleeper berth split	8/2 or 7/3 split allowed	Not allowed; must take 10 consecutive hours off

Note: California does not allow the sleeper berth split. You must take 10 consecutive hours off duty, and you cannot use the 16-hour exception for short-haul drivers.

Driving and On-Duty Limits

Under California law, you cannot drive more than 12 hours in a 24-hour period, and you cannot be on duty more than 12 hours in that same 24-hour period. This is a hard cap, meaning you cannot extend it with off-duty time during the day. For example, if you start work at 6 a.m., you must be off duty by 6 p.m., regardless of how many breaks you take.

This 12-hour limit applies to all driving, including waiting time at docks or in traffic. If you are on duty, that time counts toward your 12 hours. The only way to reset is to take 10 consecutive hours off duty.

Meal and Rest Break Requirements

California’s meal and rest break rules are part of the state’s labor code, not the DMV HOS rules, but they apply to most drivers. Here’s what you need to know:

• Meal break: You must take a 30-minute meal break before the end of your 5th hour of work. If you work more than 10 hours, you must take a second 30-minute meal break before the end of your 10th hour. The break must be uninterrupted and you must be relieved of all duties.
• Rest break: You must take a 10-minute rest break for every 4 hours worked, or major fraction thereof. This break must be taken in the middle of the 4-hour period, not at the beginning or end.
• Waivers: You can waive a meal break if your shift is 6 hours or less and you and your employer agree in writing. You cannot waive a rest break.

These breaks are not counted as on-duty time for HOS purposes, but they must be recorded in your log. If you fail to take them, you could face fines and penalties from the Labor Commissioner, separate from any HOS violations.

Logging and Recordkeeping

If you are required to keep a record of duty status (RODS), you must use an electronic logging device (ELD) that is compliant with both federal and California standards. California accepts the federal ELD rule, but your ELD must be able to record the 12-hour driving limit and the 12-hour on-duty limit. Most ELDs can be configured for state-specific rules, so make sure your settings are correct.

If you are exempt from ELD requirements (e.g., you drive a vehicle with an engine model year before 2000), you can use paper logs, but you must still record all duty status changes.

Penalties for Non-Compliance

Violating California HOS rules can result in fines and out-of-service orders. The CHP can issue a citation for each violation, with fines ranging from $100 to $1,000 per offense. If you are found to be in violation during a roadside inspection, you may be placed out of service until you have met the required off-duty time. Repeat violations can lead to higher fines and even suspension of your driving privileges.

How to Stay Compliant in 2026

Here are practical steps you can take this week to ensure you’re following California HOS rules:

1. Check your ELD settings. Make sure your ELD is set to “California Intrastate” or “State Rules” if it has that option. If not, manually adjust the driving and on-duty limits to 12 hours.
2. Review your dispatch schedule. Plan your day so you have at least 10 consecutive hours off duty. If you’re a local driver, make sure your route fits within a 12-hour window.
3. Schedule meal and rest breaks. Use a timer or app to remind you to take your 30-minute meal break before 5 hours, and a 10-minute rest break every 4 hours. Document these breaks in your log.
4. Train your dispatchers. Make sure your dispatch team knows that you cannot work more than 12 hours, even if they ask for a “quick” extra delivery. They need to plan accordingly.
5. Consult a compliance expert. If you’re unsure about how a specific situation applies, talk to a transportation attorney or a compliance consultant who specializes in California rules.

FAQ

Q: Do California HOS rules apply to me if I have a CDL but drive a vehicle under 10,001 pounds? A: No. The rules apply only to vehicles with a GVWR or GCWR of 10,001 pounds or more, or vehicles designed to transport 15 or more passengers. If your vehicle is under that weight, you’re not subject to HOS, but you still must follow California’s meal and rest break laws if you’re an employee.

Q: Can I use the federal 16-hour exception for short-haul drivers in California? A: No. California does not adopt the 16-hour exception. The 12-hour on-duty limit is a hard cap, and you cannot extend it.

Q: What happens if I take a meal break after 5 hours? A: If you take your meal break after the 5th hour, you are in violation of California labor law, even if you take the full 30 minutes. The break must be taken before the end of the 5th hour. This can result in a penalty of one hour of pay for each violation, plus potential fines.

Q: Are there any exemptions for agricultural or construction drivers? A: Yes, there are limited exemptions for certain agricultural operations, such as transporting farm products from field to storage within 150 miles. You should check with the DMV or CHP to see if you qualify. Construction drivers, however, are generally not exempt.

The Bottom Line

California’s HOS rules are stricter than federal rules, and they apply to any driver operating entirely within the state. The key differences are the 12-hour driving and on-duty limits, the prohibition on sleeper berth splits, and the mandatory meal and rest breaks. To stay compliant, configure your ELD correctly, plan your day to fit within 12 hours, and always take your required breaks. Ignoring these rules can lead to fines, out-of-service orders, and even loss of your driving privileges. If you’re new to California trucking, take the time to review the DMV’s intrastate HOS guide and talk to your employer about their compliance policies.