New Carbon Monoxide Alarm Requirements for Multi-Unit Residential Buildings

Henry’s Law Takes Effect November 1: New Carbon Monoxide Alarm Requirements for Multi-Unit Residential Buildings.

The Minister of Government Relations introduced The Building Code (Henry’s Law) Amendment Regulations, 2026 on May 5, 2026. This amendment to the National Building Code of Canada requires a carbon monoxide (CO) alarm in every residential suite or unit in a residential occupancy where a person sleeps in Saskatchewan. The enhanced regulations, known as Henry’s Law, are named in honour of Henry Losco, who passed away from CO poisoning in Regina in December 2025.

“Henry Losco’s tragic death demonstrated that Saskatchewan residents need stronger protection from the dangers of carbon monoxide in their homes,” Minister of Government Relations Eric Schmalz said. “Henry’s Law ensures that more CO alarms are positioned to provide protection, promoting the safety that is fundamental to communities and in building a strong Saskatchewan.”

Carbon monoxide is an invisible, odourless, poisonous gas produced by fuel-burning appliances such as natural gas furnaces, stoves, water heaters and fireplaces. CO can build up to dangerous levels when appliances or equipment are not working properly, are poorly ventilated or malfunctioning. Without a working CO alarm, continued exposure to CO can lead to confusion, drowsiness, loss of consciousness, brain damage and death.

Effective November 1, 2026, Henry’s Law requires CO alarms in all multi-unit residential buildings including apartments, condominiums, houses with secondary suites and all other buildings with multiple residential suites, regardless of when the building was initially built or last renovated. Building owners should ensure their properties comply with the new requirements before the regulations come into force.

To learn more about protecting your home from CO and Henry’s Law, visit saskatchewan.ca.