California Trucking Law: Essential Guide for Industry Professionals

Introduction
The trucking industry in California faces unique regulatory challenges compared to other states. With the implementation of new laws affecting independent contractors and the enforcement of stricter environmental and safety regulations, trucking companies and truck drivers must navigate a complex legal landscape, including the independent contractor test introduced by the controversial AB5 law. This comprehensive guide examines the most significant California trucking laws, with special attention to the controversial AB5 law and its impact on owner operators.
Overview of California Trucking Regulations
California trucking regulations are designed to ensure the safety of truck drivers, passengers, and the general public, while also protecting the environment and infrastructure. The California Department of Transportation (Caltrans) is responsible for enforcing these regulations, which apply to all trucking companies operating in the state. These regulations cover various aspects of trucking, including weight limits, hours of service, and emissions standards.
For instance, weight limits are strictly enforced to prevent road damage and ensure vehicle stability. Trucking companies must adhere to these limits, which can vary depending on the type of road and vehicle configuration. Additionally, hours of service regulations are in place to prevent driver fatigue, mandating rest periods and maximum driving hours. Emissions standards, enforced by the California Air Resources Board (CARB), require trucks to meet specific criteria to reduce air pollution.
Compliance with these regulations is crucial for trucking companies to avoid fines and penalties. Regular inspections and audits by Caltrans and other agencies ensure that companies adhere to the rules, promoting a safer and more sustainable trucking environment in California.
The AB5 Law and Independent Contractors
California’s Assembly Bill 5 (the AB5 law) has significantly changed how workers are classified in the state. The law applies the “ABC test“ to determine whether workers are employees or independent contractors. This has created particular challenges for the trucking industry, where the use of independent contractors has been common practice.
Under the ABC test, a worker is considered an independent contractor only if:
- The person is free from control and direction of the hiring entity’s
- The person performs work outside the usual course of the hiring entity’s business
- The person is customarily engaged in an independently established trade, occupation, or business
The California Trucking Association challenged the law, arguing it was preempted by federal law. However, the US Supreme Court declined to hear the case in June 2022, allowing the law to take effect for trucking carriers.
Impact on Owner Operators
The AB5 law has significantly affected owner operators in California. Many independent truckers who previously contracted directly with trucking companies now must either:
- Become employees of the companies they serve
- Establish their own operating authority as genuine businesses
- Work with other carriers who have proper business structures
Most owner operators have faced difficult decisions as the law effectively eliminates the traditional owner-operator model common in the industry. Some small companies have moved operations out of California entirely to avoid compliance issues.
Environmental Regulations for Trucks
The California Air Resources Board (CARB) maintains some of the strictest environmental standards for commercial vehicles:
- Trucks operating in California must meet specific emissions standards
- The state is phasing in requirements for zero-emission trucks
- By 2035, most new trucks sold must be zero-emission vehicles
These regulations significantly impact trucking companies operating in the state, often requiring fleet upgrades and new equipment investments.
Weight Limits and Vehicle Code Requirements
The California Vehicle Code establishes weight limit requirements that differ from federal standards, which are crucial for ensuring the safety of both the truck driver and others on the road:
- The maximum gross vehicle weight is 80,000 pounds (similar to federal limits)
- Axle weight restrictions can vary by road type and vehicle configuration
- Special permits are required for oversize or overweight loads
The California Highway Patrol actively enforces these weight limit regulations through inspection stations and mobile operations.
Operating Authority and Compliance
To operate in California, trucking companies must obtain an operating authority from the California Public Utilities Commission (CPUC). This authority is essential for companies to legally transport goods and passengers within the state. The process involves meeting specific requirements and demonstrating the ability to operate safely and efficiently.
In addition to state regulations, trucking companies must comply with federal regulations set by the Federal Motor Carrier Safety Administration (FMCSA). These regulations cover a wide range of safety standards, including vehicle maintenance, driver qualifications, and hours of service. Compliance with FMCSA regulations is not only a legal requirement but also a critical component of ensuring the safety of truck drivers and the general public.
Maintaining compliance with both state and federal regulations can be challenging, but it is essential for the smooth operation of any motor carrier. Regular training, audits, and updates on regulatory changes can help trucking companies stay compliant and avoid potential fines and operational disruptions.
Did You Know?
- Orange County has some of the highest concentrations of logistics companies in the state
- The California Legislature passed the first state trucking regulations in 1913
- Judge Roger Benitez initially granted a preliminary injunction against AB5 enforcement in the trucking sector
- The 9th Circuit Court of Appeals overturned the injunction in April 2021
- The California Trucking Association represents more than 1,000 members
Industry Resources and Support
The California Trucking Association (CTA) is a valuable resource for trucking companies operating in the state. The CTA provides a wealth of information on regulations, industry news, and training programs for truck drivers. By staying informed through the CTA, companies can better navigate the complex regulatory landscape and ensure compliance with state and federal laws.
In addition to the CTA, other organizations such as the California Air Resources Board (CARB) and the California Highway Patrol (CHP) offer important resources and support. CARB provides guidelines and assistance on meeting emissions standards, while the CHP focuses on safety regulations and enforcement. These organizations play a crucial role in supporting the trucking industry and ensuring that companies operate safely and sustainably.
By leveraging the resources and support offered by these organizations, trucking companies can enhance their operations, stay compliant with regulations, and contribute to a safer and more efficient trucking environment in California.
FAQs About California Trucking Law

How does the AB5 law affect truck drivers?
The AB5 law reclassifies many independent contractors as employees based on the independent contractor test, entitling them to benefits like workers’ compensation, unemployment insurance, minimum wage payments, paid sick days, and expense reimbursement. However, it also limits the flexibility many owner operators previously enjoyed.
Are there exceptions to the AB5 law for truckers?
Yes, there are a few exceptions. Truckers who operate as genuine businesses with their own operating authority, multiple customers, and business infrastructure may still qualify as independent contractors under the ABC test.
How do California’s emissions regulations compare to federal standards?
California’s emissions regulations for trucks are significantly stricter than federal standards. The state has authority under the Clean Air Act to establish its own emissions standards, which often become models for future federal regulations.
What penalties can trucking companies face for non-compliance?
Trucking companies that misclassify employees as independent contractors may face significant penalties, including:
- Back payment of wages and benefits
- Tax assessments
- Civil penalties up to $25,000 per violation
How do interstate commerce rules interact with California trucking laws?
The relationship between interstate commerce regulations and California laws remains complex. While the Federal Aviation Administration Authorization Act (FAAAA) preempts some state regulation of motor carriers, courts have determined that certain California labor laws, including AB5, can still apply to trucking services.
What documentation must California truck drivers maintain?
Truck drivers in California must maintain:
- Valid Commercial Driver’s License (CDL)
- Medical examiner’s certificate
- Hours of service logs
- Vehicle inspection reports
- Any applicable permits for specialized loads
How are gig economy companies affected by California trucking regulations?
Gig economy and ride-hailing companies that provide delivery services face similar challenges under the AB5 law, though some secured exemptions through Proposition 22 (which was later challenged in court).
Looking Ahead: Future Regulatory Trends
The trucking industry in California will likely face continued regulatory evolution:
- Increased environmental regulations aimed at reducing emissions
- Continued enforcement of worker classification rules under the AB5 law
- Potential new safety operation requirements for autonomous vehicles
- Additional California State Legislature actions focused on labor protections
Trucking companies operating in California should maintain close relationships with legal advisors to stay current with this changing regulatory landscape.
- A.S.