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The Technical Standards and Safety Authority (TSSA) issues Certificates of Qualification for individuals to work legally in TSSA’s regulated Fuels industry.  Candidates, who successfully complete the G3 or G2 program, have three attempts to write the TSSA exam within one year of the practical completion date.  Candidates must achieve 75% or higher in order to receive the TSSA Certificate of Qualification.

For more information TSSA Gas Technician/Oil Burner Technician Policies and Procedures here or contact TSSA 1-877-682-8772 to speak with a customer service representative.

Note: An examination candidate who is challenging a higher-level certification (G2, OBT-2 etc.) must have TSSA written approval, before they are eligible to register for the exam.  After successful completion of the theory examination (75% minimum), the exam candidate is responsible for contacting TSSA for the practical assessment.

Note: If an exam candidate is unsuccessful, they are eligible to re-write 30 days from the original examination date.

How to Book your Gas Technician TSSA Certification exam at SLC

Includes Gas 3, Gas 2, Challenges and Re-writes. You must register at least 20 business days prior to the scheduled exam date as exams are special ordered.

Step One

Choose your date and register online. There is a non-refundable $75 SLC fee for your exam registration. REGISTER.

Step Two

Step Three

If you have completed the training with SLC Continuing Education, you will receive the TSSA Application for Ontario Certificate of Qualification by email. Sign and email the form to This completes your exam registration and you will receive a confirmation of your booking.

If you have completed the training at another institution, are challenging, or re-writing, your exam registration with SLC is complete and you will receive an email confirmation of your booking.

Exam cancellations

A candidate must give notice in writing to and more than 10 business days from the scheduled exam date.  If a candidate cancels 15 business days or less before the scheduled exam date, they forfeit the $75 TSSA exam fee and any other fees associated with the cancellation.