One of the best ways to increase your income as a truck driver is by adding endorsements to your commercial driver’s license (CDL). A doubles and triples endorsement allows you to legally haul double and triple trailers, an essential skill if you want to increase your income and job opportunities.
In this guide, we’ll go over what the endorsement is, how to qualify, what the test involves, and the perks of getting it. Whether you’re new to the trucking industry or a seasoned driver, we’ve got all the info to get you rolling.
What is a Doubles and Triples Endorsement?
The doubles and triples endorsement, also known as the T endorsement, allows CDL holders to tow two or three trailers at a time. This type of load is commonly used in long-haul trucking to move more freight in fewer trips. It is great for companies, and even better for drivers who are paid per mile or load.
You’ll often see these setups with freight companies running on highways across states. But keep in mind, these trailers can be a bit trickier to handle, so the endorsement ensures you’re trained and ready for the challenge.
Eligibility Requirements for Doubles and Triples Endorsements
If you have completed CDL training and already have a class A CDL, you area ready to add endorsements to your license. You must also meet these requirements:
- You must have a valid CDL (Class A)
- Be at least 21 years old (for interstate driving)
- Clean driving record
- Pass the doubles and triples endorsement test
What is the Process for Obtaining Doubles and Triples Endorsements
Here’s a simple step-by-step on how to get doubles and triples endorsement:
- Study your state’s CDL Manual (Section on Doubles and Triples)
- Most states include a dedicated section in the CDL handbook for doubles/triples. Study it well.
- Take a doubles and triples endorsement practice test
- There are many free online resources and practice exams. Try a few before taking the real deal to boost your confidence.
- Visit your local DMV or licensing agency
- Schedule the endorsement test, or walk in if your DMV allows it.
- Pass the written doubles and triples endorsement test
- Pay the doubles and triples endorsement cost
- Costs vary by state but usually range from $10 to $30.
- Get your license updated
Once you pass the test and pay the fee, your CDL will be updated with the “T” endorsement.
What to Expect During the Written and Skills Tests
Here’s the good news: there’s no road test required for the doubles and triples endorsement. But the written knowledge test can still trip up unprepared drivers. What’s on the test?
Expect questions on:
- Safe driving techniques for long combination vehicles (LCVs)
- Coupling and uncoupling procedures
- Preventing trailer rollovers
- Checking air brakes and proper trailer inspections
- Handling emergencies with multiple trailers
You’ll usually need a score of 80 percent or higher to pass. Not sure you’re ready? That’s where a doubles and triples endorsement practice test really helps. Pro tip: Study real-world situations. The test loves to throw curveballs about what you should do in bad weather or when one trailer starts swaying.
Doubles and Triples Endorsement Cost
Let’s talk money. The cost of a doubles and triples endorsement depends on your state, but here’s a general idea:
- Application Fee: $10–$30
- Knowledge Test Fee (if separate): Often included in the application fe
- License Update Fee (optional in some states): $10–$15
All in all, you’re likely looking at less than $50 total. That’s a small price to pay for better pay and more job opportunities
Is a Doubles and Triples Endorsement Worth It?
So, is it worth it? Absolutely. Here’s why:
- Career Advantages
- Higher pay
- More job opportunities
- Boost your resume
- Hauling Efficiency: Carry more freight in one trip
- Knowledge and Safety: Learning how to manage doubles and triples makes you a safer, smarter driver overall
Types of Jobs That Require a Doubles and Triples Endorsement
Wondering where this endorsement will actually take you? A doubles and triples endorsement opens the door to a range of specialized trucking jobs, especially with LTL (Less-than-Truckload) carriers like FedEx, UPS, and XPO. These companies often use double or triple trailers to haul freight between distribution hubs, maximizing efficiency and keeping delivery times tight. Drivers in these roles often run linehaul or regional routes, which usually offer consistent schedules and competitive pay.
As for the freight itself, it’s not just packages and pallets. Many companies use doubles and triples to move dry bulk freight, such as grains, cement, plastic pellets, and other non-liquid goods that require more capacity without sacrificing speed. You’ll also find these setups used for consumer goods, industrial materials, and retail freight that needs to move quickly between warehouses. If you’re aiming for more predictable runs, higher pay, and a chance to move serious loads across state lines, this endorsement can get you there.
Doubles and Triples Endorsement Frequently Asked Questions
Is the doubles and triples endorsement test hard?
It’s not too bad if you study. With a few doubles and triples endorsement practice tests, you should be good to go.
Can I haul doubles or triples with a Class B CDL?
Nope. You’ll need a Class A CDL to haul multiple trailers.
How long does the endorsement last?
It stays active as long as your CDL is valid. You might need to renew it when you renew your license, depending on your state.
What happens if I fail the endorsement test?
You can usually retake it after a short waiting period. Some states may charge a retest fee.