Does the post office randomly drug test their employees?

Question

i figure there is a drug test to get the job but do they continue to test randomly throughout your career with them

Answer 1

my mom has been working for about a year and a half now and i think shes only had one test and that was to get the job

Answer 2

All Federal agencies have random drug-testing programs for their employees. Don't know how often it happens, but I have seen several of my colleagues taken to the rest room to pee in a cup for the guy/girl wearing rubber gloves...