1. In this act, the word or expression(a) “municipality” means a city or town corporation by whatever act it may be governed, or a village or rural municipality;
(b) “member of the council” means the mayor or a councillor of a municipality;
(c) “general plan” means the retirement plan established by section 2 of this act;
(d) “Commission” designates the Commission administrative du régime de retraite established under the Act respecting the Government and Public Employees Retirement Plan (chapter R-10);
(e) “participant” means the member of the council who participates in the general plan;
(f) “credited service” means, when expressed in years, the period during which a member of the council has participated in the general plan, taking into account, if such is the case, the service transferred or redeemed under this act, any fraction of a year being considered as a complete year;
(g) “pensionable salary” means the annual remuneration of a member of the council, including the allowances intended to pay part of the expenses attaching to the office of member of the council and any remuneration or allowance for the exercise of a particular function within the council or executive committee of the municipality;
(h) “regulation” means a regulation of the Government made under this act;
(i) “year” means a cumulative period of twelve months.