Tanker (N) Endorsement Guide
The N endorsement is required to haul liquids or liquefied gases in bulk containers larger than 119 gallons individually and 1,000 gallons aggregate.
Overview
The N endorsement is required to haul liquids or liquefied gases in bulk containers larger than 119 gallons individually and 1,000 gallons aggregate.
Who it is for
This guide is written for prospective and current commercial drivers who need a plain-English explanation of the rules, the testing process, and the day-to-day implications.
How to prepare
Study the official state CDL manual, take practice tests, and schedule both the written knowledge test and the in-vehicle skills test at your state DMV or third-party tester.
Common mistakes
Skipping the pre-trip walkaround, fumbling air-brake terminology, and rolling stops during the skills test are the top reasons applicants fail. Practice the inspection narration out loud.
Frequently asked
How long does it take to get this credential?
Most candidates complete training, testing, and licensing in 3–8 weeks depending on state appointment availability and prior driving experience.
Do I need a CDL school?
Since February 2022 the FMCSA Entry-Level Driver Training (ELDT) rule requires all new Class A and Class B applicants to complete training with a provider on the Training Provider Registry before taking the skills test.