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Renewal

Notice of Annual Registration Renewal Français

The College of Medical Laboratory Technologists of Ontario (CMLTO) Annual Registration Renewal for 2023 begins on November 1, 2022. Medical laboratory technologists registered with CMLTO must renew their registration by December 31, 2022, at 11:59 p.m. EST.

Please read and complete the following instructions carefully in order to complete your renewal: 

1. Go to: www.cmlto-onlineservices.com 
2. Log in using your Username (CMLTO registration number) and your password.
3. Click “Renew or Resign your Registration” at the top of the main login page.
4. Complete all required renewal sections 
  • Please note if you are registered as Practising and renewing as Non-practising or resigning your registration you must complete the Practice Timelines section to record the number of hours you worked in 2022. The hours are used if you reapply for CMLTO registration or return to a Practising class of registration.
  • A valid email address is required to complete the renewal process. The CMLTO Consolidated Bylaws require registrants to provide the College with “an e-mail address that is distinct from the e-mail address of any other registrants and that the registrant checks personally on a regular basis."
  • All Practising registrants must verify their employment information and update as required
      5. Select a payment option, pay the annual fee, and submit your renewal. 
           Payment must be confirmed to complete your renewal. 
  • Registrants may pay with VISA, Mastercard, or Interac. If you are using a VISA-Debit card, select the "pay by credit card" option to process your payment 
  • Registrants cannot pay by cheque. CMLTO cannot accept payments made through your bank, i.e., in-person banking, online banking, e-transfers.
6. Print your tax receipt by clicking “View/Print Receipts”.
    A receipt may be used as proof of CMLTO registration if necessary.

To resign effective January 1, 2023:

Beginning November 1, 2022, you may resign your CMLTO registration for 2023. Your resignation will take effect on January 1, 2023. Log in using the steps described above. Under the Class of Registration tab, select “Resign”. You will be asked to confirm your decision and the reason for resigning. You must complete the Practice Timelines section to record the number of hours you worked in 2022. This information will be used if you reapply for CMLTO registration. Please note that:

  • Retirement from your employer does not disqualify you from maintaining your CMLTO registration. All CMLTO registrants holding a Practising certificate of registration must fulfill their professional obligations regardless of their employment status, including meeting the Quality Assurance Program requirements.

  • When a registrant resigns their CMLTO registration, they cannot legally use the protected title “medical laboratory technologist” in Ontario.

Information regarding registration renewal is available at www.cmlto.com. If you have any questions, please contact the Registration department by telephone at 1-800-323-9672 extension 1 or by email at This e-mail address is being protected from spambots. You need JavaScript enabled to view it .


For further information on the Annual Registration Renewal, please consult our FAQ page