but if it's for vol. dept. the only test you do it a fit test to check your eyes, breathing and heart condition and max Vo2 test and a spinal exam to check of problems.Also they do a hernia exam(drop your shorts turn your head and cough) is all and if they go as far as drug testing it's only for Hep,A,B,C and any blood borne pathogen cause dealing with people you will be exposed many time while on the job.