Doubles and triples, done today.
Doubles/Triples Endorsement - 100% online, self-paced. The T endorsement knowledge test - coupling, dollies, air lines and handling multiple trailers.
OSHA-aligned · certificate download on completion · one-time $20
🎁 Buy any course, get $5 off every course after. Automatic when you log in, never expires.
Two trailers change everything.
Why doubles and triples roll over and jackknife more than any other rig, and the exact coupling order the DMV tests.
What $20 gets you.
One payment. No subscription, no certificate fee, no filing fee.
Three steps. Done the same day.
$20 one-time. No account needed up front - we create it from your email.
Self-paced lessons on any phone or laptop - most finish the same day.
Download your certificate the moment you pass and hand it to your employer.
Doubles/Triples Endorsement on ELDT365, at a glance
- Provider
- ELDT365, an FMCSA-registered training provider listed on the Training Provider Registry
- Price
- $20 one time, no subscription, no hidden fees
- Time to finish
- about 45 minutes, self paced, works on a phone
- Who needs it
- CDL holders adding the T endorsement for doubles and triples
- Registry filing
- Knowledge test prep. This endorsement has no federal ELDT theory requirement, so nothing is filed to the registry
- Certificate
- Downloadable the moment you finish; verify any certificate at eldt365.com/verify
- Languages
- English and Spanish
- Refunds
- Refundable within 7 days of purchase if less than 10% of the course is done and no quiz has been taken; see eldt365.com/refund-policy
Real drivers. Verified purchases.
Excellent program. Very informative and easy to understand. Choose ELDT365 for your training.
Reginald L. ✓ Verified buyerHAZMAT Endorsement · 3 weeks agoThe course informational and the material was understandable I love it
alisha ✓ Verified buyerClass A CDL · 3 months agoThe test was extensive but it was well appreciated. Got my endorsement the next day
delbert ✓ Verified buyerHAZMAT Endorsement · 3 months agoSatisfied with the result. There was a misunderstanding, but it was quickly resolved—thanks to the founder himself, Christian. My respects to the entire team.
Raul ✓ Verified buyerHAZMAT Endorsement · 3 months agoBefore you buy.
Who needs the T endorsement?
Anyone pulling more than one trailer. LTL carriers, the postal contractors, and many western states run doubles and triples every day. It is a Class A endorsement.
Is this filed with the FMCSA?
No. Doubles/triples has no federal ELDT requirement, so nothing goes to the registry. You take the knowledge test at your DMV and we give you a certificate of completion for your records.
Does this go to the FMCSA registry?
No. Doubles/triples has no federal ELDT requirement. You get a certificate of completion and take the knowledge test at your DMV.
How many questions is the test?
Typically 20, with 80 percent to pass. Exact counts vary by state.
Which states allow triples?
About 17, mostly western states, usually on specific highways. Doubles are legal nationwide on designated routes. The T endorsement covers both.
Is T the same as tanker?
No. Tanker is N. T is doubles/triples.
What if I am not satisfied?
Full refund within 7 days if you have completed less than 10% of the course and taken no quizzes. Bought the wrong course? We swap it free. A course already completed cannot be refunded.