Section 3 allows the president to voluntarily transfer their authority to the vice president (for example, in anticipation of a medical procedure) by declaring in writing their inability to discharge their duties. The vice president then assumes the powers and duties of the presidency as acting president; the vice president does not become president and the president remains in office, although without authority. The president regains their powers and duties when they declare, in writing, their readiness to discharge them again.[3]