Confined Space, H2S & Gas Detection Training

If you enter a confined space, watch over the people inside, or test the air before entry, provincial rules expect you to be trained for that job first.

• Alberta: workers assigned confined space duties must be trained by a competent person. Before entry, a competent worker tests the air with calibrated instruments.
• British Columbia: everyone with entry duties must be trained in the hazards of that space. Air testing is done by a qualified person trained to calibrate, operate and monitor the equipment.
• Ontario: every worker who enters a confined space or does related work needs adequate training. The provincial guideline names attendants and rescue workers as examples.
• Hydrogen sulfide (H2S): CCOHS warns it can dull your sense of smell, collect in low-lying areas and confined spaces, and cause sudden collapse.

Match the course to the job you will do on site.

• New to confined spaces: Confined Spaces Safety, about 1 hour. Team roles, permits, atmospheric testing, hazard controls and rescue procedures.
• Attendant or monitor: Confined Space Entry and Monitor (SCS), about 3 hours. Written for tending workers, with monitor duties, entrant tracking and records. Confined Space Entry and Monitor (about 260 minutes) also covers restricted spaces and has a 3-year certificate.
• Testing the air: Detection and Control of Flammable and Toxic Atmospheres, about 2 hours. Covers detector tubes, personal, portable and fixed monitors, and bump tests. Gas Detection and Nitrogen Awareness (about 75 minutes) adds nitrogen hazards and calibration.
• Working around H2S: the H2S course, about 2 hours. Detection, respiratory protection and emergency response, with a 3-year certificate.

• Online courses cover the theory. Your employer still trains you on the specific space and its procedures, and Ontario's guideline calls hands-on training an essential part.
• Rescue takes more. CCOHS reports that more than 60% of confined space deaths are would-be rescuers who were not fully trained and equipped.
• H2S Alive is a separate one-day classroom course from Energy Safety Canada. Our online H2S course is not equivalent, so if a site asks for H2S Alive by name, book that course.