Class B Gas Fitter

Gas Certification

Overview

Effective January 1, 2025, the Gasfitter - Class B program will become a Red Seal trade in BC certified by SkilledTradesBC. New applicants looking to perform work as a Class B Gasfitter will require a Certificate of Qualification and Red Seal endorsement in Gasfitter – Class B issued by SkilledTradesBC and a Certificate of Qualification from Technical Safety BC obtained through the completion of an Acts, Regulations, and Directives (ARD) exam with Technical Safety BC. The introduction of a Red Seal is not a retroactive requirement for active Technical Safety BC applications and existing Class B gasfitters with a valid Technical Safety BC certification.

Individuals may still apply for their Technical Safety BC certification by submitting either their Gasfitter – Class B Certificate of Apprenticeship or BC Certificate of Qualification issued by SkilledTradesBC until February 28, 2026.

A Class B (120kW) Gasfitter Certificate of Qualification allows you to perform installations and alterations on the following gas systems, under a permit:

  • An appliance with an input of 120 kW or less that displays a certification mark or an approval mark issued under section 10 of the Act
  • Piping and vents

In addition, you may perform electrical work that is restricted to the installation, repair, and maintenance of electrical wiring for solid, liquid, and gaseous fuel-fired heating equipment for any of the following:

  • Connecting branch circuit wiring to the heating equipment’s integral connection box, from a junction box or a disconnect mounted in close proximity to the heating equipment
  • Class 2 circuit wiring up to a rated output of 100 Volt amps
  • low voltage controls or 24 volt thermostats

To obtain this certificate, you will need to meet certain eligibility requirements, pass an exam, and submit an additional training credential or certificate.

To apply for this exam, you must have successfully completed a recognized Class B Gas Fitter training program. You submit your course completion document along with your exam application.

You must also hold a trade certificate in one of the following:

  • Plumbing
  • Steamfitting
  • Sprinkler fitting
  • Refrigeration and Air Conditioning Mechanic
  • Class B certificate of apprenticeship

If you are in an apprenticeship that includes Class B Gas Fitter training that has been recognized by the provincial safety manager, you may qualify as a special sitting candidate. Special sitting exams are organized by your training provider. To take a special sitting exam, you must also have a copy of your Skilled Trades BC transcript that shows one of the following:

  • Class B Gas Fitter- level 1 completed (1500 hrs minimum)
  • Plumbing - Levels 1-3 completed (4815 hrs minimum)
  • Steam Fitting- Levels 1-3 completed (4215 hrs minimum)
  • Refrigeration Mechanic- Levels 1-3 completed (4655 hrs minimum)

If there is an (HL) after the program name on your transcript, you are not eligible to write your exam via a special sitting.

You may also challenge the Class B Gas Fitter exam if you have held a Gas Utility ticket for at least two years and have completed a recognized Class B Gas Fitter training program.

Refer to Gas Safety Regulation for more information.

This exam is 4 hours long, and you must achieve a minimum grade of 70% to pass. Exam details, including areas of study, can be viewed in the exam syllabus.

For more information on our gas exams, including how to book one, visit the Exams page.

After you successfully complete your exam, you must submit one of the following to Technical Safety BC: 

  • Canadian piping trade credential in Plumbing, Steamfitting, Sprinkler fitting, or Refrigeration and Air Conditioning Mechanic
  • BC Class B Gas Fitter certificate of apprenticeship

You must submit your credential within 12 months of passing your written exam in order to receive your Class B Gas Fitter certificate.

You might be interested in