5 CFR §551.425

1. (a)Time spent waiting for and receiving medical attention for illness or injury shall be considered hours of work if:
   1. (1)The medical attention is required on a workday an employee reported for duty and subsequently became ill or was injured;
   2. (2)The time spent receiving medical attention occurs during the employee's regular working hours; and
   3. (3)The employee receives the medical attention on the agency's premises, or at the direction of the agency at a medical facility away from the agency's premises.
2. (b)Time spent taking a physical examination that is required for the employee's continued employment with the agency shall be considered hours of work.