An Act relative to the requirement of explosive gas sensor devices

This bill requires all residential buildings (including those owned by the Commonwealth) with gas-burning appliances (like furnaces, water heaters, or fireplaces) to install and maintain approved explosive gas sensors. Landlords must install working battery-powered or hardwired alarms before each rental period and maintain them annually, while property owners must ensure compliance during sales or transfers. The fire department enforces these rules and inspects properties at sale, with stricter building code requirements for new construction or major renovations. The law defines "explosive gas sensor devices" as meeting ANSI standards for detecting methane and propane.