Environmental

Carbon monoxide (CO) detector requirements in Massachusetts residential rental properties include:

ACO detectors are only required for properties with fireplaces
BCO detectors are required in all residential units that have fuel-burning appliances or attached garages✓ Correct
CCO detectors are optional—only smoke detectors are required
DCO detectors are only required in new construction

Explanation

Massachusetts law requires carbon monoxide detectors in residential properties with fuel-burning appliances (furnaces, water heaters, etc.) or attached garages. This is required at time of sale and in rental properties.

Related Massachusetts Environmental Questions

Practice More Massachusetts Real Estate Questions

1,500+ questions covering all exam topics. Start free — no signup required.

Take the Free Massachusetts Quiz →