146. The council of a municipality may, by by-law,(1) establish a planning advisory committee composed of at least one member of the council and of such number of members as it shall determine, who are chosen from among the persons resident in the territory of the municipality;
(2) assign to such committee powers of study and recommendation in regard to planning, zoning, subdivision and building;
(3) empower the committee to establish its rules of internal management;
(4) provide that the term of office of the members must not exceed two years and that it may be renewed.