Online Learning Center (https://www.cristcdl.com/olc/) shut down planned for January 31st 2020

With the launch of our new site, new tests with new questions and formats, we will be closing this section of our site at the end of this month. If you are currently using these outdated tests, please select your state below to get started on the new site. Again, this section of our site will be closing on January 31st, 2020 and will not be accessible from that day forward.

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• CDL Practice Tests
» Hazardous Material Test 1

• En Espanol

A safe haven is one place you can leave a vehicle unattended that is hauling explosives. What is the best description of a safe haven?

Any property that is totally fenced in by an 8 foot high fence

Any property that is totally fenced in by an 8 foot high fence and has a guard on duty all day long

Any property that has been government approved for this use