Alternate members of the Disciplinary Chamber of First Instance replace full members who are unable to sit. If a full member ceases to hold office for any reason whatsoever, he shall be replaced by an alternate member whose term of office shall be that remaining until the date on which the term of office of the member he replaces would have expired. The regional or inter-regional council may then hold a supplementary election within six months for a new alternate member whose term of office expires on the same date as that on which the term of office of the member to be replaced would have expired.
At the time of each renewal, a supplementary election is held to fill the seats that have become vacant.