Requires explosive gas detectors to be installed in certain residential properties.

This bill requires property owners to install carbon monoxide and explosive gas detectors in certain residential properties before occupancy or sale. It directly affects landlords, homeowners, and sellers of single-family homes, duplexes (fewer than three units), hotels, and rooming/boarding houses. Owners must provide certification that detectors meet specific safety standards (like UL 2034 for carbon monoxide and ANSI for gas) or prove no hazard exists. Failure to comply carries a $100 penalty per violation. The bill amends existing safety laws to mandate these detectors as a condition for occupancy certificates or sales.