Drug-free workplace programs help improve workplace safety and health in industries of all kinds, and also play an important role in creating safer and drug-free families and communities across the nation. To establish a comprehensive drug-free workplace program, be sure to include the following components:

1. Drug-Free Workplace Policy: While each company's policy should be customized, all effective policies include a rationale for the policy's implementation, a clear description of prohibited behaviors and an explanation of the consequences for violating the policy.
2. Supervisor Training: Training should ensure that supervisors understand the drug-free workplace policy, ways to recognize and deal with employees who may have substance abuse problems and how to refer employees to available assistance.
3. Employee Education: The education program provides employees with the information they need to fully understand, cooperate with and benefit from their company's drug-free workplace program.
4. Employee Assistance: A critical component of a drug-free workplace program is providing assistance or support to employees who have problems with alcohol and other drugs. Employee Assistance Programs (EAPs) are generally the most effective vehicle for addressing employee alcohol and drug abuse.
5. Drug Testing: Employers should consider who will be tested, when tests will be conducted, which drugs will be tested for and how will tests be conducted.

(Source: http://www.dol.gov)