GFA
Red Seal Trade
Gas Fitter — Class A
Red Seal / red-seal.ca · Technical Standards Safety Authority (TSSA) · CSA
CSA B149.1 (Natural Gas Installation) · TSSA O.Reg 212/01
Exam Questions
50
per session
Pass Gate
90%
RISL standard
Refresher Interval
2 yr
recommended
Retest Window
6 mo
if not yet passed
Curriculum — 4 Topic Blocks
Block 01 / 04
Gas Theory & Properties
- Natural gas & propane combustion theory
- Heating values & specific gravity
- Flue gas analysis & CO formation
- Pressure & flow fundamentals
Block 02 / 04
Installation & Piping
- Sizing natural gas piping systems
- Pressure regulation & manifolding
- Meter & service piping
- Purging & pressure testing procedures
Block 03 / 04
Appliance Commissioning
- Residential & commercial appliance startup
- Burner adjustment & combustion analysis
- Venting categories & requirements
- Controls, safeties & interlocks
Block 04 / 04
Code Compliance & Safety
- CSA B149.1 critical sections
- TSSA permit & inspection requirements
- CO detection & emergency procedures
- Class A scope of work limits
🔒
Enrol to Unlock
30-Day Access
Subscribe to unlock unlimited exam sessions, detailed performance analytics, a Certificate of Completion on a passing result, and the complete GFA question bank — 90%+ pass gate enforced.
$
49.95
CAD
30-day access
per worker
Enrol Now — 30-Day Access
No free trial · Subscription activates full access immediately
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 a Certificate of Completion.
Enrol Your Team →
Result Levels
| Level |
Score |
Result |
Timing |
Next Step |
| Passed |
90–100% |
Certificate of Completion |
Recommended refresher interval: 2 years |
Refresher within 2 years to stay current |
| Not yet passed |
70–89% |
No certificate |
Retest recommended within 6 months |
Targeted study on weak areas |
| Not yet passed |
Below 70% |
No certificate |
Retest within 30 days |
Structured study on all flagged areas |