§ 626. Acceptance of promotions; oath of office

• (a) An officer who is appointed to a higher grade under section 624 of this title is considered to have accepted such appointment on the date on which the appointment is made unless he expressly declines the appointment.
• (b) An officer who has served continuously since he subscribed to the oath of office prescribed in section 3331 of title 5 is not required to take a new oath upon appointment to a higher grade under section 624 of this title .