Webto get a combo tanker and hazmat endorsement on your cdl, you’ll first need to pass the general cdl knowledge exam. Then you must pass the x endorsement exam, which. Webto be eligible to apply for a cdl tanker endorsement, you must first complete all over the following: Be 18 years or older. Have a valid us passport or residential. Webpassing the cdl tanker endorsement test requires a combination of theoretical knowledge and practical understanding. Remember, safety and compliance are key in. Webtanker endorsement is an official authorization added to a commercial driver’s license (cdl). This endorsement allows the holder to legally transport large volumes of liquid.
