1. Skip to Menu
  2. Skip to Content
  3. Skip to Footer>


To work as a medical laboratory technologist (MLT) in Ontario, an individual must be registered as a Practising member of the College of Medical Laboratory Technologists of Ontario (CMLTO).

As of March 13, 2020

The CMLTO is unable to accommodate unscheduled or ‘drop-in’ visitors until further notice. Signage is posted on the office door with relevant phone and email contact information.

Applicants for registration should not make unscheduled or unannounced visits to the CMLTO office to drop off documents without having made prior arrangements. The CMLTO cannot guarantee that staff will be available to accept documents during office hours.