(1) Subject to clause (2), if the President becomes temporarily unable, whether by reason of ill health, absence from Singapore or otherwise, to perform his functions under this Constitution or any other written law, one of the persons referred to in Article22n shall exercise the functions of the office of President during the period of temporary disability, and the provisions of Article 22n shall apply, mutatis mutandis, to that person.
(2) Parliament shall not appoint any person to exercise the functions of the office of President under this article unless the President agrees to that person being so appointed.
(3) Clause (2) shall not apply if the President is unable for any reason to signify his agreement to a person being appointed under this article to exercise the functions of the office of President.