How to Read a CDL License

Q: Do I need endorsements for both Class A and Class B CDLs?

You don't *always* need endorsements for a basic Class A or Class B CDL, but they are highly recommended as they expand your job options and earning potential. Endorsements allow you to operate different kinds of vehicles and haul specific types of freight, as noted by Schneider Jobs [Types of CDL endorsements](https://schneiderjobs.com/blog/types-cdl-endorsements). For example, a Class A driver needs a Doubles/Triples (T) endorsement to pull multiple trailers, and a Class B driver needs a Passe

Last updated: April 2026

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Quick Answer

A Class A CDL lets you drive combination vehicles with a gross vehicle weight of 26,001 pounds or more, and a towing capacity over 10,000 pounds.
A Class B CDL is for single vehicles weighing 26,001 pounds or more, but with a towing capacity of no more than 10,000 pounds.
Class A CDL training programs are more intensive and generally take longer to complete than Class B CDL programs.
CDL endorsements like Hazmat (H), Tanker (N), and Double/Triple Trailers (T) for Class A, or Passenger (P) and School Bus (S) for Class B, expand job options.

Understanding your Commercial Driver's License (CDL) means knowing the difference between Class A and Class B classifications. These classes dictate the types of commercial motor vehicles you are legally allowed to operate. A Class A CDL is designed for combination vehicles, such as a tractor connected to a trailer, where the total vehicle weight is 26,001 pounds or more, and the towed unit alone weighs over 10,000 pounds Class A CDL vehicle requirements. This is the license most people associate with "big-rigs" or "18-wheelers." In contrast, a Class B CDL permits the operation of a single vehicle weighing 26,001 pounds or more, but its towing capacity cannot exceed 10,000 pounds. This includes vehicles like straight trucks, buses, and dump trucks. Your choice between a Class A and Class B CDL depends entirely on your career goals and the specific types of commercial vehicles you plan to drive.

What is a Commercial Driver's License (CDL)?

A Commercial Driver's License, or CDL, is a special license required to operate large, heavy, or placarded hazardous material vehicles in commerce. This license is different from a standard driver's license because commercial vehicles demand a higher level of skill, knowledge, and physical ability to operate safely on public roadways. The requirements for obtaining a CDL are set by the Iowa Department of Transportation, and generally include being at least 18 years old and providing proof of your full name, date of birth, and Social Security number, according to Iowa Tax And Tags. Without a CDL, you cannot legally drive these types of vehicles for work.

There are three main types of CDL classifications: Class A, Class B, and Class C. Each class allows you to drive different categories of commercial motor vehicles based on their weight and configuration. Choosing the correct CDL class is a critical step in starting a career in the transportation industry. It directly impacts the kinds of jobs you can apply for, the routes you might take, and the types of cargo you can haul. Your individual career goals and interests will guide you in determining which CDL class is the best fit for you. For instance, if your ambition is to drive long-haul tractor-trailers across state lines, a Class A CDL would be necessary. If you prefer to drive local delivery trucks or passenger buses, a Class B CDL might be more appropriate.

Why a CDL is Necessary

Operating a commercial motor vehicle carries significant responsibility due to the vehicle's size, weight, and potential cargo. The federal government, through regulations, ensures that drivers of these vehicles have specialized training and licensing to promote safety for both the driver and other road users. This is why a standard driver's license is not sufficient for commercial operation. The CDL system ensures that drivers have demonstrated competence in specific areas, including vehicle inspection, basic control skills, and safe driving practices. This focus on specialized training helps to reduce accidents and ensure that goods and passengers are transported safely and efficiently.

The Three Main CDL Classes

The three main CDL classes—Class A, Class B, and Class C—are designed to categorize commercial motor vehicles by their Gross Vehicle Weight Rating (GVWR) and whether they are combination vehicles or single units. A Class A CDL is the most comprehensive, allowing for the operation of the largest combination vehicles. A Class B CDL covers large single vehicles, often without a trailer, or with a very light one. A Class C CDL is for smaller vehicles that transport hazardous materials or a large number of passengers, which do not fall under Class A or Class B categories. For example, a Class C CDL can be used for operating small hazmat vehicles, passenger vans carrying 16 or more people, or combination vehicles not described in Class A or B, such as a small truck towing a trailer, as detailed by NETTTS. Each class has distinct requirements and training paths, tailored to the types of vehicles and driving scenarios associated with them. Understanding these distinctions is fundamental to choosing the right path for your commercial driving career.

What Does a Class A CDL Allow You to Drive?

A Class A CDL is the most inclusive type of Commercial Driver's License, specifically designed for operating large combination vehicles. This means it covers vehicles made up of a tractor connected to a trailer, or multiple trailers. To qualify for a Class A CDL, the combination of vehicles must have a gross vehicle weight of 26,001 pounds or more, and the towing capacity of the unit being towed must be greater than 10,000 pounds. This definition is critical because it sets Class A apart from other CDL classifications, focusing on the ability to manage significant weight and multiple connected units.

With a Class A CDL, drivers can operate what are commonly known as big-rigs, tractor-trailers, or 18-wheelers. These are the vehicles typically seen hauling freight across long distances, often interstate. The versatility of a Class A CDL is one of its primary advantages. When a driver obtains the correct endorsements, a Class A CDL allows them to operate many different commercial motor vehicles. This includes not only the large combination vehicles it's primarily designed for, but also Class B and Class C trucks. This "inclusive" nature means that a Class A CDL holder, with the right additional certifications, has a broad range of driving opportunities available to them.

Vehicle Requirements for Class A

The core requirement for a Class A CDL revolves around vehicle weight and configuration. The vehicle must be a "combination of vehicles," meaning it consists of at least two units hooked together. The combined weight of these units, known as the Gross Vehicle Weight Rating (GVWR) or Gross Combination Weight Rating (GCWR), must be 26,001 pounds or more. Crucially, the towed unit itself must have a GVWR of more than 10,000 pounds. This distinction ensures that Class A drivers are trained to handle the complexities and challenges of managing heavy, articulated vehicles. For example, a tractor-trailer where the tractor weighs 15,000 pounds and the loaded trailer weighs 20,000 pounds would require a Class A CDL because the total is 35,000 pounds (over 26,001 pounds) and the trailer is over 10,000 pounds.

Common Class A Vehicles

The types of vehicles you can drive with a Class A CDL are extensive. They include:

Tractor-trailers: The most common type, used for transporting goods across the country.
Tanker trucks: For hauling liquids or gases, often requiring a Hazmat (H) and Tanker (N) endorsement.
Flatbeds: Used for oversized or unusually shaped cargo, like machinery or building materials.
Doubles and Triples: These are combination vehicles with two or three trailers, requiring a specific endorsement. A Doubles and Triples endorsement specifically requires you to have a Class A CDL before applying for it, as noted by TransForce.
Livestock haulers: Specialized trailers for transporting animals.

The ability to drive these diverse vehicles, especially with the necessary endorsements, makes the Class A CDL a highly valuable credential in the trucking industry. It opens doors to a wide array of career paths, from long-haul freight to specialized transport.

Operating Class B and Class C Vehicles

One of the significant benefits of holding a Class A CDL is its inherent allowance to operate Class B and Class C vehicles, provided you have the appropriate endorsements for specialized tasks. This means if you have a Class A CDL, you typically don't need a separate Class B or Class C license to drive vehicles that fall into those categories. For example, a Class A CDL holder could drive a straight truck (a common Class B vehicle) or a passenger van (a common Class C vehicle, with a passenger endorsement). This broad applicability makes the Class A CDL a versatile choice for drivers interested in having the widest possible range of job options within the commercial driving sector. The training for a Class A CDL is designed to be comprehensive, covering general knowledge and driving techniques that are applicable across various vehicle types, giving drivers a strong foundation for managing different commercial motor vehicles.

What Does a Class B CDL Allow You to Drive?

A Class B CDL is specifically for operating single commercial vehicles that are heavy, but do not involve towing a heavy trailer. This means the license allows you to drive a single vehicle with a gross vehicle weight of 26,001 pounds or more. The key distinction for a Class B CDL is its towing capacity: it allows for towing a vehicle that weighs no more than 10,000 pounds. This limit on towing capacity is what differentiates it from a Class A CDL, which is for heavier towed units. Class B vehicles typically do not have a separate, heavy trailer attached, or if they do, the trailer is relatively light.

With the correct endorsements, a Class B CDL opens up opportunities to operate a variety of important commercial vehicles that are common in local and regional operations. These can include vehicles such as straight trucks, city buses, garbage trucks, dump trucks, delivery trucks, and cement mixers. These types of jobs often involve more predictable routes and can offer more consistent daily schedules, as noted by DDA. The Class B CDL is a vital credential for many essential services and industries, providing drivers with solid career paths that focus on single-unit vehicle operation.

Vehicle Requirements for Class B

The primary requirement for a Class B CDL focuses on the weight of a single vehicle. The vehicle itself must have a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more. Unlike a Class A CDL, the emphasis here is on a standalone unit, not a combination vehicle with a heavy trailer. If a trailer is towed, its GVWR must not exceed 10,000 pounds. This ensures that drivers with a Class B CDL are trained for the specific handling characteristics of heavy, single-unit vehicles, which differ from the dynamics of a tractor-trailer combination. For example, a large passenger bus or a heavy construction dump truck, each weighing over 26,001 pounds, would require a Class B CDL. A driver interested in operating these types of vehicles would pursue this specific license.

Common Class B Vehicles

The range of vehicles operable with a Class B CDL, especially with the right endorsements, is diverse and critical to many industries. These include:

Straight Trucks: Often used for local deliveries, moving services, or specialized equipment transport. These are single units where the cab and cargo area are on one chassis.
Buses: This includes city buses, tour buses, and shuttle buses. A Passenger (P) endorsement is required for these.
Garbage Trucks: Essential for waste management services in municipalities.
Dump Trucks: Used in construction and landscaping for hauling materials like dirt, sand, and gravel.
Delivery Trucks: Larger versions of delivery vehicles, often exceeding the 26,001-pound threshold.
Cement Mixers: Specialized vehicles used in construction for transporting and mixing concrete.
Utility Trucks: Vehicles used by utility companies for maintenance and repair work, such as bucket trucks or line trucks.

The specific vehicle types available to a Class B driver are often tied to the endorsements they hold. For example, a driver wanting to operate a school bus would need both a Class B CDL and a School Bus (S) endorsement, along with a Passenger (P) endorsement. These endorsements allow drivers to specialize and take on particular roles within the commercial driving sector.

Operating Class C Vehicles with a Class B CDL

Similar to how a Class A CDL can cover Class B and C vehicles, a Class B CDL also allows for the operation of Class C vehicles, provided the necessary endorsements are obtained. A Class C CDL is designed for specific scenarios involving smaller vehicles that transport hazardous materials, passenger vans carrying 16 or more people, or combination vehicles not covered by Class A or B. For instance, a Class B CDL holder with a Passenger (P) endorsement could drive a large passenger van or a city bus. This flexibility means that a Class B CDL can open up a wider variety of local driving jobs, giving drivers options beyond just the heaviest single-unit trucks. The training for a Class B CDL, which includes general knowledge and vehicle maneuvering, provides a foundational understanding that applies to many different commercial vehicles, making it a valuable credential for a range of driving careers.

How Does Training Differ for Class A and Class B CDLs?

Training for Class A and Class B CDLs shares some fundamental similarities, but the depth, intensity, and duration often differ significantly. Both types of training typically combine classroom instruction with hands-on, behind-the-wheel practice. However, Class A CDL programs are generally more intensive and take a longer time to complete compared to Class B CDL programs. This difference reflects the increased complexity and responsibility involved in operating large combination vehicles, which a Class A license permits.

For both classes, training includes essential components like federal and state regulations, which are crucial for legal and safe operation. Students also learn general driving techniques, vehicle maneuvering, and important skills like writing trip reports. A significant portion of the training for both licenses is dedicated to exam preparation, ensuring students are ready for the written and practical tests required for certification. Practice driving is a core element, typically involving time on a closed range and on public roadways, allowing students to gain real-world experience.

Class A CDL Training Intensity

Class A CDL training is designed to prepare drivers for the complexities of operating tractor-trailers and other large combination vehicles. This involves mastering skills like coupling and uncoupling trailers, backing up long articulated vehicles, and managing the dynamics of heavy loads. The classroom portion covers topics such as air brake systems, hazardous materials regulations (if pursuing an H endorsement), and Hours of Service rules. The hands-on training for Class A vehicles is extensive, focusing on safe driving practices for these large vehicles, including defensive driving, managing blind spots, and navigating various road conditions. The comprehensive nature of this training is why it typically requires a greater time commitment. New England Tractor Trailer Training School (NETTTS) offers different Class A CDL training program options tailored for drivers with varying levels of experience.

Class B CDL Training Focus

Class B CDL training, while rigorous, focuses on the specific requirements of heavy single-unit vehicles. This typically involves learning to operate straight trucks, buses, or dump trucks. The curriculum for a Class B CDL program may include general knowledge, specific training requirements for certain vehicle types (like passenger transport), vehicle maneuvering in tighter spaces, and detailed exam preparation. Practical driving sessions often focus on navigating urban environments, performing tight turns, and managing larger single vehicles effectively. Additional coursework and training could consist of vehicle inspections, railroad crossings, transporting cargo, and general CDL and vehicle knowledge, according to NETTTS. For example, NETTTS offers the Class B Commercial Heavy Straight Truck Training (CDLB 80) license program, which combines classroom instruction with behind-the-wheel training, specifically designed for this class of license CDL training program options.

Federal ELDT Rules

Federal Entry-Level Driver Training (ELDT) rules apply to both Class A and Class B CDLs. These rules ensure a standardized approach to training nationwide, meaning that regardless of where you get your training, it will meet federal minimum requirements. The ELDT regulations cover specific theory and behind-the-wheel instruction, which must be provided by a certified training provider. This standardization helps ensure that all new commercial drivers possess a foundational level of knowledge and skill before they can take their CDL skills test. As DDA notes, "Federal ELDT rules apply to both, ensuring standardized training nationwide." This makes sure that the quality of training is consistent, regardless of whether a driver is pursuing a Class A or Class B license, and prepares them for safe operation in the commercial transportation industry.

Why Are CDL Endorsements Important?

CDL endorsements are crucial because they significantly expand a driver's capabilities, allowing them to operate different types of vehicles and haul specific kinds of freight that a basic CDL alone would not permit. Think of endorsements as specialized certifications added to your primary Class A or Class B CDL. They demonstrate that a driver has received additional training and passed specific tests related to particular vehicles, cargo, or operational scenarios. This specialization is highly valued in the commercial driving industry, making drivers with endorsements more versatile and often more desirable to employers.

Having the ability to haul unique kinds of freight or operate specialized vehicles gives drivers a distinct advantage in the job market. This often translates directly into a higher annual salary. For instance, a driver with a Hazmat endorsement can transport hazardous materials, which typically commands better pay due to the increased responsibility and specialized handling required. Similarly, a driver with a Tanker endorsement can haul liquids, offering another avenue for specialized work. These endorsements are not just about paperwork; they represent a deeper level of knowledge and skill, ensuring that drivers are competent and safe when handling these specific challenges.

Expanding Job Opportunities

Endorsements open up more opportunities for truckers, as highlighted by TransForce. With additional endorsements, drivers can take on more diverse loads and operate a wider range of vehicles. This directly impacts job security and career progression. For example, a driver with a Class A CDL and a Doubles/Triples endorsement can transport multiple trailers, a skill set that is in demand for certain freight operations. Without this endorsement, those jobs would be inaccessible. Similarly, a Class B CDL holder with a Passenger endorsement can drive buses, opening up careers in public transportation or school bus services. The more endorsements a driver holds, the broader their potential job market becomes, allowing them to choose from a greater variety of roles and industries. This flexibility can be particularly beneficial in a dynamic job market, as it allows drivers to adapt to changing demands for different types of freight or services.

Increased Earning Potential

The link between endorsements and higher earning potential is clear in the trucking industry. When drivers can handle specialized freight or vehicles, they often command better pay. This is because these tasks typically involve greater responsibility, more complex operations, or adherence to stricter regulations. For example, jobs requiring a Hazmat (H) endorsement often come with a premium due to the risks and specialized training involved in transporting dangerous goods. According to Schneider Jobs, "Having the ability to haul these unique kinds of freight gives drivers an edge and often results in a higher annual salary." This financial incentive motivates many drivers to pursue additional endorsements beyond their initial CDL class. The investment in time and effort to obtain these certifications can pay off significantly over a driver's career, leading to a more financially rewarding profession.

Standardized Training with ELDT

The Federal Entry-Level Driver Training (ELDT) rules ensure that all drivers seeking initial CDL licenses or specific endorsements receive standardized training. This means that whether you are getting your first CDL or adding an endorsement like Hazmat or Passenger, the training must meet federal guidelines. This standardization ensures a baseline of competence and safety across the industry. The ELDT regulations require specific theory instruction and behind-the-wheel training from providers listed on the FMCSA Training Provider Registry. This uniform approach helps to maintain high safety standards and ensures that drivers are consistently prepared for the challenges associated with specialized commercial vehicle operations.

What Are Common CDL Endorsements?

CDL endorsements are specialized certifications that expand the types of vehicles a driver can operate or the kinds of freight they can haul. These endorsements are added to a driver's Class A or Class B CDL after they pass specific knowledge and/or skills tests. The types of endorsements available vary, and some are more commonly sought after than others due to demand in the trucking industry. These endorsements are crucial for drivers looking to specialize and increase their job opportunities and earning potential.

For Class A CDL holders, who typically operate large combination vehicles, common endorsements include Hazmat (H), Tanker (N), Double/Triple Trailers (T), and Combo (X). Each of these allows for specific types of operations that go beyond what a basic Class A CDL covers. For Class B CDL holders, who primarily drive heavy single-unit vehicles, common endorsements include Passenger (P), School Bus (S), and Hazmat (H). These endorsements are vital for careers in public transportation, school systems, and local hazardous material transport.

Class A Endorsements

Class A CDL endorsements are geared towards the complexities of combination vehicles and specialized cargo. The most common ones are:

Hazmat (H) Endorsement: This is required to transport hazardous materials, such as chemicals, gases, or explosives, which must be placarded. Obtaining this endorsement involves passing a written test and typically a background check.
Tanker (N) Endorsement: Necessary for driving tank vehicles that transport liquids or liquefied gases. These vehicles have unique handling characteristics due to shifting liquid loads, requiring specialized knowledge.
Double/Triple Trailers (T) Endorsement: This endorsement allows a Class A CDL holder to pull two or three trailers simultaneously. This dramatically increases the amount of cargo a single driver can transport. It is important to remember that you need to have a Class A CDL before applying for the doubles and triples endorsement, as stated by TransForce.
Combination (X) Endorsement: This is a combination of the Hazmat (H) and Tanker (N) endorsements, allowing a driver to transport hazardous materials in a tank vehicle. This is a highly specialized endorsement that can lead to significant earning potential.

These endorsements allow Class A drivers to take on more complex and often higher-paying jobs. For example, a driver with Hazmat, Tanker, and Double/Triple endorsements would be qualified for a wide range of specialized freight operations, as seen in job listings for "Class CDL Hazmat Tanker Double Triple jobs" on Indeed.

Class B Endorsements

Class B CDL endorsements are typically focused on passenger transport or specific types of single-unit cargo. The common endorsements include:

Passenger (P) Endorsement: Required to operate any vehicle designed to transport 16 or more passengers, including the driver. This is essential for bus drivers, whether for city routes, tour groups, or private charters.
School Bus (S) Endorsement: This is a specialized version of the Passenger endorsement, specifically for operating school buses. It requires additional knowledge and skills tests, often including a background check, to ensure child safety.
Hazmat (H) Endorsement: Just like with Class A, a Hazmat endorsement is needed for Class B vehicles transporting placarded hazardous materials. This could include smaller hazmat delivery trucks or maintenance vehicles carrying dangerous goods.

These endorsements enable Class B drivers to pursue careers in public service, education, or specialized local deliveries. For example, a Class B CDL with a P and S endorsement is required for school bus drivers, a critical role in many communities.

The Value of Endorsements

The value of CDL endorsements cannot be overstated. They are proof of specialized skills and knowledge, making drivers more competitive in the job market. Schneider Jobs highlights that "These endorsements then allow drivers to operate different kinds of vehicles and haul specific types of freight." This directly translates to more job options and often higher pay. Investing in endorsements is an investment in a driver's career longevity and financial success. The ability to diversify one's skillset through endorsements ensures that drivers can adapt to industry demands and pursue the most lucrative opportunities available.

Which CDL Class Offers More Job Opportunities and Earning Potential?

When deciding between a Class A and Class B CDL, many drivers consider the long-term career implications, specifically job opportunities and earning potential. Generally, a Class A CDL offers broader career options and often has higher earning potential, largely due to the types of vehicles it allows you to drive and the nature of the work involved. However, a Class B CDL provides easier entry into the industry and can offer a better work-life balance, particularly for drivers who prefer local routes and daily home time.

A Class A CDL is the gateway to operating large combination vehicles like tractor-trailers, which are the backbone of long-haul and interstate trucking. This opens up a vast array of opportunities for transporting goods across the country, often involving diverse types of freight. Because Class A drivers can handle the heaviest and most complex vehicles, their skills are in high demand across the logistics and supply chain industries. This demand, combined with the responsibility and often longer routes, typically leads to higher earning potential.

Class A: Broader Horizons and Higher Pay

The Class A CDL provides the most extensive range of career options in the commercial driving sector. With this license, drivers can engage in:

Long-haul trucking: Transporting goods across states or even the entire country.
Interstate trucking: Driving between different states, crucial for national supply chains.
Specialized freight: Hauling oversized loads, liquid bulk, or hazardous materials, often with specific endorsements.
Team driving: Working with another driver to keep trucks moving almost continuously, which can lead to higher mileage and pay.

DDA notes that a Class A CDL "offers broader career options, including long-haul and interstate trucking." These roles often involve longer shifts and require time away from home, sometimes for weeks at a time. While this lifestyle isn't for everyone, it is often associated with the highest earning potential in the trucking industry. The ability to drive a wider variety of vehicles and handle more complex loads contributes to this increased pay.

Class B: Local Focus and Work-Life Balance

A Class B CDL is ideal for drivers who prefer a more localized work environment and a better work-life balance. The jobs available to Class B drivers typically involve single-unit vehicles and often operate within a specific region or city. This means drivers can frequently return home at the end of each shift. DDA states that a Class B CDL is "ideal for local routes and daily home time." This makes it an attractive option for individuals who prioritize being home with their families every day.

Common career paths for Class B CDL holders include:

City bus driver: Operating public transportation routes within a metropolitan area.
School bus driver: Transporting students to and from school, often with a set schedule.
Dump truck driver: Working in construction, hauling materials to job sites, usually within a local radius.
Garbage truck driver: Providing essential waste collection services for municipalities.
Local delivery driver: Operating larger delivery trucks for businesses, often on predictable routes.

While the earning potential for Class B drivers might be slightly lower than for Class A drivers in some sectors, the consistent hours and daily home time are significant benefits for many. The ease of entry into the industry with a Class B CDL, due to shorter training programs, also makes it a viable option for those looking to start a commercial driving career more quickly. Choosing between Class A and Class B ultimately depends on an individual's personal preferences regarding work schedule, travel, and career aspirations.

Frequently Asked Questions

What is the main difference between Class A and Class B CDLs?

The main difference lies in the types of vehicles you can operate based on weight and configuration. A Class A CDL allows you to drive combination vehicles, like a tractor-trailer, where the combined weight is 26,001 pounds or more, and the towed unit alone weighs over 10,000 pounds Class A CDL vehicle requirements. A Class B CDL is for single vehicles weighing 26,001 pounds or more, but with a towing capacity of no more than 10,000 pounds. This distinction means Class A is for articulated, heavy combinations, while Class B is for heavy single units.

Can a Class A CDL driver operate Class B vehicles?

Yes, a Class A CDL is the most inclusive CDL and generally allows a driver to operate Class B and Class C trucks, provided they have the correct endorsements for any specialized operations, such as transporting passengers or hazardous materials. This means a Class A CDL holder would not typically need a separate Class B license to drive a straight truck or a bus (with a Passenger endorsement). The comprehensive training for a Class A license provides the foundational skills for operating a wide range of commercial motor vehicles.

What types of vehicles require a Class B CDL?

A Class B CDL is required for single vehicles with a gross vehicle weight of 26,001 pounds or more, and a towing capacity of no more than 10,000 pounds. Vehicles that typically require a Class B CDL, especially with the correct endorsements, include straight trucks, buses, garbage trucks, dump trucks, delivery trucks, and cement mixers. These vehicles are commonly used for local and regional operations, often allowing drivers to be home daily.

Do I need endorsements for both Class A and Class B CDLs?

You don't always need endorsements for a basic Class A or Class B CDL, but they are highly recommended as they expand your job options and earning potential. Endorsements allow you to operate different kinds of vehicles and haul specific types of freight, as noted by Schneider Jobs Types of CDL endorsements. For example, a Class A driver needs a Doubles/Triples (T) endorsement to pull multiple trailers, and a Class B driver needs a Passenger (P) endorsement to drive a bus. Federal ELDT rules apply to both initial CDLs and specific endorsements.

What are the age requirements to get a CDL?

The age requirements for obtaining a CDL are set by individual states, often adhering to federal guidelines. For instance, the Iowa Department of Transportation requires applicants to be at least 18 years of age to obtain a Commercial Driver’s License. While an 18-year-old can obtain an intrastate CDL (driving within state lines), federal regulations typically require drivers to be 21 years old to operate commercial motor vehicles across state lines (interstate commerce) or to transport hazardous materials.

— The MileMarker Team