OACETT proudly represents25,000 engineering and applied science technicians and technologistsemployed in Ontario. Our members are employed inover 6,000 companies, across all disciplines of engineering.OACETT is Ontario's independent certifying body for engineering and applied science technicians and technologists and confers the designations C.Tech. (Certified Technician) and C.E.T. (Certified Engineering Technologist). These designations are recognized across Canada by employers and other engineering professionals.