Delaware constitution
Article III
Section 20

Thereafter, when the Governor transmits to the President pro tempore of the Senate and the Speaker of the House of Representatives his or her written declaration that no disability exists, he or she shall resume the powers and duties of his or her office unless the Chief Justice of the Supreme Court of Delaware, the President of the Medical Society of Delaware and the Director of the Division of Substance Abuse and Mental Health, acting unanimously, transmit within five days to the President pro tempore of the Senate and the Speaker of the House of Representatives their written declaration that the Governor is unable to discharge the powers and duties of his or her office because of mental or physical disability. Thereupon the General Assembly shall decide the issue, assembling within seventy-two hours for that purpose if not then in session. If the General Assembly within ten days after receipt of the latter written declaration determines by two-thirds vote of all the members elected to each house that the Governor is unable to discharge the powers and duties of his or her office because of mental or physical disability, the Lieutenant Governor shall continue to discharge same as Acting Governor; otherwise, the Governor shall resume the powers and duties of his or her office.