Final answer:
If an 'on-call' safety-sensitive employee consumes alcohol within the prohibited time before coming to work, they should not report to work and should follow the protocol for reporting time off.
Step-by-step explanation:
When an 'on-call' safety-sensitive employee consumes alcohol within the prohibited time allowance before being requested to come to work, they should not report to work and should follow the proper protocol for reporting time off. The consumption of alcohol can impair judgment, coordination, and increase the risk of accidents in safety-sensitive positions. To ensure the safety of oneself and others, it is crucial to avoid reporting to work under the influence of alcohol.