Are you wondering when to send employees for random testing? If you are a client of InOut Labs, your DER will receive an email from us with your selection list for the period. The DER chooses the time to send the employees for testing, and is responsible for completing the tests by the end of the selection period (usually the end of the quarter).
Remember that once notified, the employee is to proceed immediately for testing. Not tomorrow, or a week from Tuesday. Now.