9. Subject to sections 6, 12, 13, 39 and 80, a person is participating in this plan if he is a member of the council of a municipality which adheres to the plan. His participation shall not continue after 30 December of the year in which he attains 69 years of age.
However, if a person becomes a member of the council of a municipality after 31 December of the year in which he attains 67 years of age or if the municipality adheres to the plan after that date, the person does not participate in the plan, except if one of the following conditions applies:
(1) he is receiving a pension under the plan and elects, in accordance with section 39, to participate therein;
(2) he may be credited with two years of service before 31 December of the year in which he attains 69 years of age if he exercises a right provided for in sections 55 to 62.
1988, c. 85, s. 9; 1989, c. 75, s. 1; 1991, c. 78, s. 1; 1997, c. 71, s. 21.