18.14.5. The Committee on employee benefits in the construction industry may make any by-law to give effect to a clause of a collective agreement intended for the establishment or amendment of a complementary social benefits plan. Only an express clause of the collective agreement can change the amount of the assessments or contributions affected to the complementary social benefits plans, or amend or abolish any express clause of the collective agreement respecting that plan.
The Committee may establish by by-law the procedure for transferring a sum to another plan from the assets of a supplemental pension plan applicable to the construction industry for a group of employees subject until then to a collective agreement made under this Act. It may also establish by by-law the procedure for maintaining a social benefits plan in favour of employees
(1) who are no longer subject to a collective agreement made under this Act;
(2) who are temporarily carrying out work to which this Act does not apply, to the extent that their participation in the plan is not prohibited by a collective agreement or decree applicable to them; or
(3) to whom a collective agreement or a decree is applicable which expressly provides for their participation in the plan.
The by-law shall determine the amount of their assessments and contributions under the plan.