# Ontario fuel industry certificates ## Certificate records on this registry - [G3 Gas Technician 3 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/g3-gas-technician/) - [G2 Gas Technician 2 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/g2-gas-technician/) - [G1 Gas Technician 1 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/g1-gas-technician/) - [GP Gas Piping Fitter certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/gp-gas-piping-fitter/) - [LP Liquid Propane Fitter certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/lp-liquid-propane-fitter/) - [DA Domestic Appliance Technician certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/da-domestic-appliance-technician/) - [OBT-3 Oil Burner Technician 3 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/obt-3-oil-burner-technician/) - [OBT-2 Oil Burner Technician 2 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/obt-2-oil-burner-technician/) - [OBT-1 Oil Burner Technician 1 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/obt-1-oil-burner-technician/) - [IMT Industrial Maintenance Technician certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/imt-industrial-maintenance-technician/) - [ICE Internal Combustion Alternate Fuel Technician certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ice-alternate-fuel-technician/) - [ICE-IE Internal Combustion Alternate Fuel Technician - Industrial Equipment certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ice-ie-alternate-fuel-technician-industrial/) - [RV1 Recreational Vehicles Technician 1 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/rv1-recreational-vehicles-technician/) - [RV2 Recreational Vehicles Technician 2 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/rv2-recreational-vehicles-technician/) - [GPI Gas Pipeline Inspector certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/gpi-gas-pipeline-inspector/) - [RSI-NG Refuelling Station Installer - Natural Gas certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/rsi-ng-refuelling-station-installer/) - [RST-NG Refuelling Station Service Technician - Natural Gas certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/rst-ng-refuelling-station-service-technician/) - [PPO-1 Propane Plant Operator 1 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ppo-1-propane-plant-operator/) - [PPO-2 Propane Plant Operator 2 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ppo-2-propane-plant-operator/) - [PPO-3 Propane Plant Operator 3 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ppo-3-propane-plant-operator/) - [PCI Propane Cylinder Inspector certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/pci-propane-cylinder-inspector/) - [PTO Propane Truck Operator certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/pto-propane-truck-operator/) - [OPI Fuel Oil Pipeline Inspector certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/opi-fuel-oil-pipeline-inspector/) - [OP Oil Pipe Fitter certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/op-oil-pipe-fitter/) - [OBAT Oil Burner Activation Technician certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/obat-oil-burner-activation-technician/) - [CDT Crop Dryer Technician certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/cdt-crop-dryer-technician/) - [CH-01 Construction Heater Operator 1 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ch-01-construction-heater-operator/) - [CH-02 Construction Heater Operator 2 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ch-02-construction-heater-operator/) - [CH-SM1 Construction Heater Service and Maintenance Technician 1 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ch-sm1-construction-heater-service-technician/) - [CH-SM2 Construction Heater Service and Maintenance Technician 2 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/ch-sm2-construction-heater-service-technician/) - [RE-O Roofing Equipment Operator certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/re-o-roofing-equipment-operator/) - [H2 Hydrogen Fuel Technician certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/h2-hydrogen-fuel-technician/) - [GUT-1 Gas Utility Technician 1 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/gut-1-gas-utility-technician/) - [GUT-2 Gas Utility Technician 2 certificate: scope, exam and renewal](https://ontariocertificationregistry.ca/certificates/gut-2-gas-utility-technician/) ## Every certificate class under O. Reg. 215/01, s. 3 (1) | Code | Certificate | | --- | --- | | G.1 | [Gas technician 1 certificate record](https://ontariocertificationregistry.ca/certificates/g1-gas-technician/) | | G.2 | [Gas technician 2 certificate record](https://ontariocertificationregistry.ca/certificates/g2-gas-technician/) | | G.3 | [Gas technician 3 certificate record](https://ontariocertificationregistry.ca/certificates/g3-gas-technician/) | | GP | [Gas piping fitter certificate record](https://ontariocertificationregistry.ca/certificates/gp-gas-piping-fitter/) | | LP | [Liquid propane fitter certificate record](https://ontariocertificationregistry.ca/certificates/lp-liquid-propane-fitter/) | | ICE | [Internal combustion alternate fuel technician certificate record](https://ontariocertificationregistry.ca/certificates/ice-alternate-fuel-technician/) | | ICE-IE | [Internal combustion alternate fuel technician - industrial equipment certificate record](https://ontariocertificationregistry.ca/certificates/ice-ie-alternate-fuel-technician-industrial/) | | DA | [Domestic appliance technician certificate record](https://ontariocertificationregistry.ca/certificates/da-domestic-appliance-technician/) | | RV.1 | [Recreational vehicles technician 1 certificate record](https://ontariocertificationregistry.ca/certificates/rv1-recreational-vehicles-technician/) | | RV.2 | [Recreational vehicles technician 2 certificate record](https://ontariocertificationregistry.ca/certificates/rv2-recreational-vehicles-technician/) | | IMT | [Industrial maintenance technician certificate record](https://ontariocertificationregistry.ca/certificates/imt-industrial-maintenance-technician/) | | GPI | [Gas pipeline inspector certificate record](https://ontariocertificationregistry.ca/certificates/gpi-gas-pipeline-inspector/) | | RSI-NG | [Refuelling station installer - natural gas certificate record](https://ontariocertificationregistry.ca/certificates/rsi-ng-refuelling-station-installer/) | | RST-NG | [Refuelling station service technician - natural gas certificate record](https://ontariocertificationregistry.ca/certificates/rst-ng-refuelling-station-service-technician/) | | PPO-1 | [Propane plant operator 1 certificate record](https://ontariocertificationregistry.ca/certificates/ppo-1-propane-plant-operator/) | | PPO-2 | [Propane plant operator 2 certificate record](https://ontariocertificationregistry.ca/certificates/ppo-2-propane-plant-operator/) | | PPO-3 | [Propane plant operator 3 certificate record](https://ontariocertificationregistry.ca/certificates/ppo-3-propane-plant-operator/) | | PCI | [Propane cylinder inspector certificate record](https://ontariocertificationregistry.ca/certificates/pci-propane-cylinder-inspector/) | | PTO | [Propane truck operator certificate record](https://ontariocertificationregistry.ca/certificates/pto-propane-truck-operator/) | | OBT-1 | [Oil burner technician 1 certificate record](https://ontariocertificationregistry.ca/certificates/obt-1-oil-burner-technician/) | | OBT-2 | [Oil burner technician 2 certificate record](https://ontariocertificationregistry.ca/certificates/obt-2-oil-burner-technician/) | | OBT-3 | [Oil burner technician 3 certificate record](https://ontariocertificationregistry.ca/certificates/obt-3-oil-burner-technician/) | | OPI | [Fuel oil pipeline inspector certificate record](https://ontariocertificationregistry.ca/certificates/opi-fuel-oil-pipeline-inspector/) | | OP | [Oil pipe fitter certificate record](https://ontariocertificationregistry.ca/certificates/op-oil-pipe-fitter/) | | CDT | [Crop dryer technician certificate record](https://ontariocertificationregistry.ca/certificates/cdt-crop-dryer-technician/) | | OBAT | [Oil burner activation technician certificate record](https://ontariocertificationregistry.ca/certificates/obat-oil-burner-activation-technician/) | | CH-01 | [Construction heater operator 1 certificate record](https://ontariocertificationregistry.ca/certificates/ch-01-construction-heater-operator/) | | CH-02 | [Construction heater operator 2 certificate record](https://ontariocertificationregistry.ca/certificates/ch-02-construction-heater-operator/) | | CH-SM1 | [Construction heater service and maintenance technician 1 certificate record](https://ontariocertificationregistry.ca/certificates/ch-sm1-construction-heater-service-technician/) | | CH-SM2 | [Construction heater service and maintenance technician 2 certificate record](https://ontariocertificationregistry.ca/certificates/ch-sm2-construction-heater-service-technician/) | | RE-O | [Roofing equipment operator certificate record](https://ontariocertificationregistry.ca/certificates/re-o-roofing-equipment-operator/) | | H2 | [Hydrogen fuel technician certificate record](https://ontariocertificationregistry.ca/certificates/h2-hydrogen-fuel-technician/) | | GUT-1 | [Gas utility technician 1 certificate record](https://ontariocertificationregistry.ca/certificates/gut-1-gas-utility-technician/) | | GUT-2 | [Gas utility technician 2 certificate record](https://ontariocertificationregistry.ca/certificates/gut-2-gas-utility-technician/) | Last verified August 19, 2026 against O. Reg. 215/01 as consolidated on e-Laws. Classes without a linked record have not been published yet; their scope wording is in the regulation. ## Refrigerants: a different regulator again Handling refrigerants is certified under environmental law rather than the Technical Standards and Safety Act. The [Ozone Depletion Prevention (ODP) card](https://ontariocertificationregistry.ca/certificates/odp-card/) is required to purchase and handle refrigerants in Ontario, is earned through a one-day course, and renews every five years. ## How TSSA certificates differ from trade certification Skilled Trades Ontario certifies trades such as [plumber (306A)](https://ontariocertificationregistry.ca/trades/306a-plumber/) and [sheet metal worker (308A)](https://ontariocertificationregistry.ca/trades/308a-sheet-metal-worker/) under the Building Opportunities in the Skilled Trades Act. Fuel certificates are a separate system under the Technical Standards and Safety Act, and many jobs need both: a residential HVAC installer typically holds a [G.2 gas technician certificate](https://ontariocertificationregistry.ca/certificates/g2-gas-technician/) alongside their trade qualification. See the [trade certification directory](https://ontariocertificationregistry.ca/trades/) for the trades side. ## Official verification sources - Regulation[O. Reg. 215/01, Fuel Industry Certificates (e-Laws)](https://www.ontario.ca/laws/regulation/010215) - Certifying body[TSSA: Fuels Industry Professional certification](https://www.tssa.org/fuels-industry-professional) --- Source: https://ontariocertificationregistry.ca/certificates/