The following sections of the COHSR states:
10.14 (1) Every employer shall, in consultation with the work place committee or the health and safety representative, develop and implement an employee education program with respect to hazard prevention and control at the work place.
...(3) Every employer shall, in consultation with the work place committee or the health and safety representative, review the employee education program referred to in subsection (1) and if necessary, revise it
(a) at least once a year;
(b) whenever there is a change in conditions in respect of the hazardous substances in the work place; and
(c) whenever new hazard information in respect of a hazardous substance in the work place becomes available to the employer.
A – Therefore, this confirms that the employer has to keep employees current on hazard prevention and control.