+10 Can Dot Drug Test You On The Road References. The answer is yes, you have to take a drug test for cdl since drug testing is a mandatory requirement for obtaining and maintaining a commercial driver’s license. The department of transportation (dot) enforces strict regulations to ensure safety for everyone on the roads.

Dot drug and alcohol tests include: Truck drivers are required to undergo drug testing under specific circumstances: Drug testing panels and false negatives lead to underestimated drug prevalence;