How to Become a Gas Technician 3 (G3) in Ontario
Do you need certification?
Certification required
Gas technician 3 (G3) is a compulsory trade in Ontario. You need a certificate, or registration as an apprentice, to work in the trade.
- Protected titles
- Not listed in the sources checked
Show the source
“TSSA provides certification services to Fuels Safety technicians in Ontario to perform regulated work, such as installing, maintaining, and altering equipment, devices, or systems in the Fuels industry.”
From tssa.org/fuels-industry-professional, checked October 10, 2026.
At a glance
- Licence status
- Certification required See the source
- Routes
-
- Trained in Canada: 2 steps
- Licensed in another province: 1 step
- Trained outside Canada: 5 steps
- Annual fees
- Not stated by the regulator Check with TSSA
Your roadmap
Tick each step as you finish it. Your ticks are kept in this browser only.
Trained in Canada
0 of 2 done
- 2 steps without a listed fee
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Enroll in classes offered by an accredited training provider that follows a TSSA-approved curriculum.
Source
“Enroll in classes offered by an accredited training provider that follows a TSSA-approved curriculum.”
tssa.org/fuels-industry-professional -
Apply for the exam through the TSSA Client Portal and pay the certification and exam fees per the fee schedules.
Source
“Step 2: Pay the certification and exam fees per the respective fee schedules”
tssa.org/fuels-industry-professional
Listed fees for this route
No one-time fees listed by the regulator for these steps Check with TSSA
2 steps without a listed fee, so the total may not be the full cost.
Licensed in another province
0 of 1 done
- 1 step without a listed fee
-
Complete your request and submit a colour copy of your equivalent certificate, which must be active and in good standing, through the TSSA Client Portal.
Source
“To apply, complete your request and submit a colour copy of your equivalent certificate through our Client Portal. Certificate must be active and in good standing.”
tssa.org/out-province-certificate-holders
Listed fees for this route
No one-time fees listed by the regulator for these steps Check with TSSA
1 step without a listed fee, so the total may not be the full cost.
Trained outside Canada
0 of 5 done
- 5 steps without a listed fee
-
Submit a request through the TSSA Client Portal under the Applications section.
Source
“Step 1: Submit a request through the Client Portal Under the ‘Applications’ section, select ‘Apply for Examination, Certification or Training Provider Services’ and follow the steps.”
tssa.org/fuels-industry-professional -
Attach documentation proving work experience, including a detailed list of relevant training programs or courses with course outlines and mandatory transcripts.
Source
“Applicants must provide a detailed list of all completed training programs or courses that are relevant to the certification classification they are applying for. Detailed course outlines corresponding to these programs or courses must also be included. Transcripts are mandatory.”
tssa.org/fuels-industry-professional -
Submit copies of your out-of-province certification as appropriate.
Source
“Applicants must submit copies of Out-of-Province Certification as appropriate.”
tssa.org/fuels-industry-professional -
Submit copies of the appropriate legislation from your home jurisdiction relating to the scope of your certification.
Source
“Applicants must submit copies of the appropriate legislation from their home jurisdiction as they pertains to the scope of the authorization or certification.”
tssa.org/fuels-industry-professional -
Pay the assessment fee as set out in the fee schedule; a separate invoice is issued if a practical assessment is required.
Source
“Step 6: Pay the assessment fee as set out in the Fee Schedule If an applicant is required to complete a practical assessment, TSSA will issue a separate invoice after completion of the practical assessment.”
tssa.org/fuels-industry-professional
Listed fees for this route
No one-time fees listed by the regulator for these steps Check with TSSA
5 steps without a listed fee, so the total may not be the full cost.
Requirements
Education
Applicants seeking Fuels Safety certification must attend a training program provided by accredited training providers that use a TSSA-approved curriculum.
Source
“Applicants seeking Fuels Safety certification must attend a training program provided by accredited training providers that use a TSSA-approved curriculum.”
tssa.org/fuels-industry-professional
Already licensed in another province?
Direct transfer
Someone certified in another province or territory can be recognized for the equivalent certification in Ontario without undertaking additional training, experience, exams, or assessments. Source
“Applying for a certificate from outside Ontario allows an individual within Canada who has been certified for a specific occupation in one province or territory to be recognized for the equivalent certification in another province or territory without undertaking additional training, experience, exam, or assessments.”
tssa.org/fuels-industry-professional
Processing time: Not stated by the regulator Check with TSSA
Credential assessment
Not stated by the regulator Check with TSSA
Exams
Not stated by the regulator Check with TSSA
Language tests
Not stated by the regulator Check with TSSA
Canadian experience
Not stated by the regulator Check with TSSA
Supervised practice
Not stated by the regulator Check with TSSA
Demand and pay
| Where | Low | Median | High | Outlook |
|---|---|---|---|---|
| Ontario | $26.00 | $36.06 | $62.50 | Moderate (3 of 5) |
| Canada | $26.44 | $40.00 | $59.62 | — |
Gas technician 3 (G3) in other provinces and territories
- British Columbia Not confirmed yet
- Alberta Not confirmed yet
- Saskatchewan Not confirmed yet
- Manitoba Not confirmed yet
- Quebec Not confirmed yet
- New Brunswick Not confirmed yet
- Nova Scotia Not confirmed yet
- Prince Edward Island Not confirmed yet
- Newfoundland and Labrador Not confirmed yet
- Yukon Not confirmed yet
- Northwest Territories Not confirmed yet
- Nunavut Not confirmed yet
Sources checked
- Fuels Industry Professional tssa.org/fuels-industry-professional · fetched October 9, 2026
- Out-of-Province Certificate Holders tssa.org/out-province-certificate-holders · fetched October 9, 2026
Frequently asked questions
1
Do you need a licence to work as a gas technician 3 (G3) in Ontario?
Yes. Certification, or registration as an apprentice, is required to work in the trade in Ontario. Certification is managed by the Technical Standards and Safety Authority.
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