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When Are Drug Tests Conducted? 

There are a variety of circumstances under which an organization may require a drug test. The following are the most common or widespread use; Pre-Employment, Reasonable SuspicionPost-AccidentRandom, Periodic, and Return-to-Duty (please be sure to click on the above links to get a clear understanding of there applications).

Other types of tests are also used by some employers. For example, follow-up testing or post-rehabilitation testing is conducted periodically after an employee returns to the workplace upon completing rehabilitation for a drug or alcohol problem. It is administered on an unannounced, unpredictable basis for a period of time specified in the drug-free workplace policy.

Another type of testing, blanket testing, is similar to random testing in that it is unannounced and not based on individual suspicion; however, everyone at a worksite is tested rather than a randomly selected percentage. Other types of testing include voluntary, probationary, pre-promotion and return-after-illness testing.

- What are the different methods of drug testing?
- What drugs do tests detect?
- How long are drugs in one’s system?
- How does a drug test determine if a person has been using?
- Is drug testing legal?
- How does one start a drug-testing program?
 

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