Drug use is most prevalent among young adults representing the segment of our society entering the work force. 2. The "fitness for duty" policy stipulates that all employees assume responsibility to report to work in a fit condition and perform their jobs without increasing risk to themselves or others. 3. The supervisor focuses on observable behavior; the employee health practitioner completes a confidential medical evaluation; the EAP professional performs an in-depth evaluation; and the human resources representative/manager evaluates the employee's continued employment. 4. After treatment and rehabilitation, the employer gains a productive, healthy, and substance free employee, and the employee gains by entering a program of sobriety supported by the organization.