GFB
Red Seal Trade
Gas Fitter — Class B
Red Seal / red-seal.ca · TSSA · CSA
CSA B149.1 · TSSA O.Reg 212/01 (Class B scope)
Exam Questions
50
per session
Pass Gate
90%
above governing body standard
Tier 1 Valid
2 yr
Certificate of Competency
Tier 2 Valid
6 mo
Participation Certificate
Curriculum — 4 Topic Blocks
Block 01 / 04
Class B Scope & Limitations
- Class B vs Class A scope of work
- Residential appliance types covered
- When to escalate to Class A
- Jurisdictional variations
Block 02 / 04
Residential Gas Systems
- Furnace, boiler & water heater service
- Gas range & dryer installation
- Low-pressure piping systems
- Meter set & service connection limits
Block 03 / 04
Diagnostics & Safety Checks
- Appliance startup & commissioning
- Combustion testing basics
- Safety shutoff verification
- Gas leak detection & response
Block 04 / 04
Regulatory Compliance
- TSSA permit process for Class B
- Mandatory inspection checkpoints
- Record-keeping requirements
- CO safety & ventilation standards
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30-Day Access
Subscribe to unlock unlimited exam sessions, detailed performance analytics, Tier 1 & Tier 2 certification, and the complete GFB question bank — 90%+ pass gate enforced.
$
49.95
CAD
30-day access
per worker
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Deploy This Programme Across Your Workforce
Industrial employers in Oil & Gas, Mining, Power Generation, Utilities, and Manufacturing use the RISL Living Competency System to verify, track, and enforce workforce competency in Gas Fitter —. Each worker enrolment gives that individual 30 days of access at $49.95 CAD — the same rate whether you enrol 1 or 1,000. Workers must complete the exam within their access window to receive certification.
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Certification Tiers
| Tier |
Score |
Certificate Issued |
Validity |
Next Step |
| Tier 1 |
90–100% |
Certificate of Competency |
2 years · revalidation required |
Maintain revalidation before expiry |
| Tier 2 |
70–89% |
Participation Certificate |
6 months · full retest required |
Targeted remedial study on weak areas |
| Tier 3 |
Below 70% |
No certificate issued |
Retest within 30 days |
Structured remedial training required |