Before operating a tank, a driver should: Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question Before operating a tank, a driver should: Answers Remove the rear shut-off valve. Check vapor recovery kits, if applicable. Remove a third of their fuel. Explanation When inspecting your tank vehicle before operation, make sure all specialty equipment is in safe working condition. This includes vapor recovery kits, grounding and bonding cables, and emergency shut-off systems. This questions appears in the following tests: Missouri Tank