Thanks for all of the input everyone. The pre-employment testing seems manageable. I'm not sure how to always be on the ready for a spot random test.

At the ski area I worked at if you were in an accident, even if it was not your fault, even if you were not cited and the other driver was, you still had to go straight from the scene of the accident to the test lab with the supervisor in the car with you. Dilution wouldn't be an option under the situation, and I'm not sure how one could get a substitution up to body temperature either, unless you always had it ready, which seems like a pain.

Quote Originally Posted by showstopper
Personal experience, dont piss dirty. you have zero defense.
showstopper, what are the consequences of failing a DOT random? Loss of employment only, loss of CDL status (but retaining the right to drive a regular vehicle), or loss of all driving privileges including your 'regular' license?