3908.1 The immediate supervisor or manager of an employee occupying a safety-sensitive position shall make a reasonable suspicion referral for testing of an employee in a safety-sensitive position when there is a reasonable suspicion that the employee is under the influence of illegal drugs or alcohol to the extent that the employee is too impaired to perform his or her duties.

3908.2 Prior to contacting the appropriate personnel authority to make a referral under this section, the supervisor or manager shall:

1. (a) Have probable cause or reasonable suspicion that the employee is under the influence of an illegal drug or alcohol to the extent that the employee's ability to perform his or her job is impaired;
2. (b) Gather all information and facts to support this suspicion; and
3. (d) Receive a second opinion from another supervisor or manager.

3908.3 A reasonable suspicion referral may be based on direct observation of illegal drug use or possession, physical symptoms of being under the influence of illegal drugs, or intoxicated by alcohol, a pattern of erratic behavior, work performance indicators of drug or alcohol abuse, or any other reliable indicators.

3908.4 Testing resulting from a reasonable suspicion referral shall be conducted as specified in sections 3905 and 3906 of this chapter.