Fast facts
| Certificate | Industrial Maintenance Technician (IMT), commonly searched as industrial maintenance technician certificate or IMT TSSA |
|---|---|
| Fuel family | Multiple fuels (natural gas, propane, fuel oil) |
| Issued by | Technical Standards and Safety Authority (TSSA) |
| Legal basis | O. Reg. 215/01 (Fuel Industry Certificates), s. 3 (1); scope in s. 30 |
| Exam pass mark | 75% (TSSA Gas/Oil Burner Technician certification policy, updated March 2025) |
| Exam fee | $89 per attempt; $255.50 to challenge without training (from May 1, 2026, plus HST) |
| Certificate fee | $136 initial and renewal (from May 1, 2026, plus HST) |
| Renewal | Every 2 years; $50 late payment fee after the renewal date |
| Transferable | No (O. Reg. 215/01, s. 17) |
Last verified August 19, 2026 against the sources listed below.
What can a IMT holder legally do in Ontario?
An IMT holder may carry out work on the equipment the certificate is valid for, and perform any function of a G.1 or OBT-1 certificate holder that they have been trained on, except:
- Installing, servicing, removing or replacing components of a refrigeration or air conditioning unit
- Installing, servicing, removing or replacing tanks
Boundaries of the IMT
- An E designation limits the certificate to electrical components of the equipment as they relate to gas and fuel oil systems; an M designation limits it to mechanical components (O. Reg. 215/01, s. 10 (3), (4))
- The IMT is tied to employment at a qualifying establishment
The full scope wording is in O. Reg. 215/01, s. 30, which prevails over any summary.
Is a certificate legally required for gas work?
This certificate is required to perform work regulated under the fuel regulations listed in O. Reg. 215/01, s. 2 (1), which cover gaseous fuels, propane, fuel oil, pipelines and compressed gas. Which regulation applies depends on the fuel being worked on.
How do you get the IMT in Ontario?
Prerequisite
You must be employed in an industrial or institutional establishment with fuelled appliances, or by a manufacturer of fuelled appliances, and have received training from an accredited provider for the work the IMT covers (O. Reg. 215/01, s. 10). Your employer must keep records of that training.
The training route
- Complete an approved program at an accredited training provider. Certification requires a TSSA-approved curriculum delivered by an accredited provider (O. Reg. 215/01, s. 5 (1)), with a 75% pass on each module and on the practical evaluations.
- Apply for the TSSA certification exam. Your provider submits proof of training; you book through the TSSA Client Portal. The practical assessment stays valid for 12 months after the program.
- Pass the TSSA certification exam with 75% or higher. Each attempt, including rewrites, is billed as a separate exam. Failing three times means completing a full accredited program before another attempt (O. Reg. 215/01, s. 5 (4)).
- Pay the certificate fee. $136 for the initial certificate (from May 1, 2026, plus HST), per the TSSA fee schedules (identical certification fees across the fuel schedules).
The challenge route
Experienced workers can challenge the exam without formal training if TSSA is satisfied they hold equivalent knowledge and competence (O. Reg. 215/01, s. 5 (5)). The challenge examination costs $255.50, requires documented proof of work experience where the certificate has prerequisites, and still ends in a practical skills assessment.
How often does the IMT need to be renewed?
Every two years. TSSA's fee schedules list the certificate fee as biennial, and the renewal costs $136 (from May 1, 2026, plus HST) with a $50 late payment fee after the renewal date. For the gas and oil burner classes, TSSA's certification policy anchors the expiry to the second anniversary of the holder's birthday after issue.
Working on an expired certificate is prohibited outright: O. Reg. 215/01, s. 4 (1) says a person who fails to renew shall not do any work under the certificate after expiry. You can still renew up to one year after expiry, completing any upgrading course the director specifies. After one year, the certificate is gone and you start over as a new applicant (s. 4 (5)).
Where the IMT sits in the ladder
The IMT is also a qualifying prerequisite for the LP (liquid propane fitter) certificate.
Related certificates and trades
Official verification sources
- RegulationO. Reg. 215/01, Fuel Industry Certificates (e-Laws)
- Certifying bodyTSSA: Fuels Industry Professional certification
- FeesTSSA fee schedules (identical certification fees across the fuel schedules)
How this record is built: scope, prerequisites and renewal law are read directly from O. Reg. 215/01 as consolidated on e-Laws; fees come from TSSA's published fee schedules and the pass mark from TSSA's certification policies. The page is assembled programmatically from those verified facts and reviewed before publishing. Facts not verified against a primary source are marked as not published rather than estimated.