868. All the offices of member of the council of the municipality in which the by-law passed under section 867 is in force on 31 December 1987 shall be open for nominations at the regular election contemplated in section 869.
One half of the offices held by councillors shall again be open for nominations at a regular election to be held two years later. Those offices shall be determined by means of a drawing of lots carried out by the secretary-treasurer at a sitting of the council held during the six-month period preceding the publication of the notice of election.
The other half of the offices held by councillors and the office of mayor shall be open for nominations at a regular election to be held two years after the election provided for in the second paragraph.
Subsequently, a regular election shall be held every second year. The alternation of offices open for nominations, introduced by the second and third paragraphs, shall continue for such regular elections until the first general election held after the repeal of the by-law passed under section 867.