5 CFR §550.131

1. (a)Except as otherwise provided in this subpart, an employee who performs holiday work is entitled to pay at his or her rate of basic pay plus premium pay at a rate equal to his or her rate of basic pay for that holiday work that is not in excess of 8 hours.
2. (b)An employee is entitled to pay for overtime work on a holiday at the same rate as for overtime work on other days.
3. (c)An employee who is assigned to duty on a holiday is entitled to pay for at least 2 hours of holiday work.
4. (d)An employee is not entitled to holiday premium pay while engaged in training, except as provided in § 410.402 of this chapter.