Carbon Monoxide & Smoke Detector Laws

Carbon Monoxide Detector Laws by State | Smoke Alarm Laws by State | FAQs

Learn about state-by-state laws governing carbon monoxide detectors and smoke alarms in residential properties, including which states still don’t require them to be installed.

STATE CARBON MONOXIDE DETECTOR REQUIRED? SMOKE DETECTOR REQUIRED?
ALABAMA Yes Yes
ALASKA Yes Yes
ARIZONA Yes Yes
ARKANSAS Yes Yes
CALIFORNIA Yes Yes
COLORADO Yes Yes
CONNECTICUT Yes Yes
DELAWARE Yes Yes
FLORIDA Yes Yes
GEORGIA Yes Yes
HAWAII No Yes
IDAHO Yes Yes
ILLINOIS Yes Yes
INDIANA Yes Yes
IOWA Yes Yes, dual (photoelectric/ionization) sensor required.
KANSAS Yes Yes
KENTUCKY Yes Yes
LOUISANA Yes Yes
MAINE Yes Yes, photoelectric type required
MARYLAND Yes Yes
MASSACHUSETTS Yes Yes, photoelectric type required, dual (photoelectric/ionization) sensor required in new construction
MICHIGAN Yes Yes
MINNESOTA Yes Yes
MISSISSIPPI Yes Yes
MISSOURI No Yes
MONTANA Yes Yes
NEBRASKA Yes Yes
NEVADA Yes Yes
NEW HAMPSHIRE Yes Yes
NEW JERSEY Yes Yes
NEW MEXICO Yes Yes
NEW YORK Yes Yes
NORTH CAROLINA Yes Yes
NORTH DAKOTA Yes Yes
OHIO Yes Yes, dual (photoelectric/ionization) sensor required in new construction
OKLAHOMA Yes Yes
OREGON Yes Yes with hush mechanism
PENNSYLVANIA Yes Yes
RHODE ISLAND Yes Yes
SOUTH CAROLINA Yes Yes
SOUTH DAKOTA Yes Yes
TENNESSEE Yes Yes
TEXAS Yes Yes
UTAH Yes Yes
VERMONT Yes Yes, photoelectric type required
VIRGINIA Yes Yes
WASHINGTON Yes Yes
WEST VIRGINA Yes Yes
WISCONSIN Yes Yes
WYOMING Yes Yes

Carbon Monoxide Laws by State

 

STATE CARBON MONOXIDE DETECTOR REQUIRED?
ALABAMA Carbon monoxide detectors should be installed near the bedrooms. If a fuel-burning appliance is in a bedroom or attached bathroom, carbon monoxide detectors must be installed within the bedroom.
Carbon monoxide alarms in new builds should be hardwired with a battery backup.
ALASKA Carbon monoxide detectors are required.
ARIZONA Carbon monoxide detectors are required in all homes with fuel burning appliances, heaters, or attached garages.
ARKANSAS Carbon monoxide detectors are required.
CALIFORNIA Carbon monoxide detectors are required.
COLORADO Carbon monoxide detectors are required. Carbon monoxide alarms in new builds should be hardwired with a battery backup.
CONNECTICUT Carbon monoxide detectors are required.
DELAWARE Carbon monoxide detectors are required.
FLORIDA Carbon monoxide detectors are required.
GEORGIA Carbon monoxide detectors are required.
HAWAII There is no state law in Hawaii requiring carbon monoxide detectors.
IDAHO Carbon monoxide detectors are required.
ILLINOIS Carbon monoxide detectors are required.
INDIANA There is no state law in Indiana requiring carbon monoxide detectors.
IOWA Carbon monoxide detectors are required.
KANSAS There is no state law in Kansas requiring carbon monoxide detectors.
KENTUCKY Carbon monoxide detectors are required.
LOUISANA Carbon monoxide detectors are required.
MAINE All new and extensively renovated homes must have a carbon monoxide detector powered by a building’s electrical system with battery back-up, a sealed detector with a 10-year battery, or be part of a combined fire/carbon monoxide detection system.
MARYLAND Carbon monoxide detectors are required.
MASSACHUSETTS Carbon monoxide detectors are required.
MICHIGAN Carbon monoxide detectors are required.
MINNESOTA Carbon monoxide detectors are required.
MISSISSIPPI Carbon monoxide detectors are required.
MISSOURI There is no state law in Missouri requiring carbon monoxide detectors.
MONTANA Carbon monoxide detectors are required.
NEBRASKA Carbon monoxide detectors are required.
NEVADA Carbon monoxide detectors are required.
NEW HAMPSHIRE Carbon monoxide detectors are required.
NEW JERSEY Carbon monoxide detectors are required.
NEW MEXICO Carbon monoxide detectors are required.
NEW YORK Carbon monoxide detectors are required.
NORTH CAROLINA Carbon monoxide detectors are required.
NORTH DAKOTA Carbon monoxide detectors are required.
OHIO Carbon monoxide detectors are required.
OKLAHOMA Carbon monoxide detectors are required.
OREGON Carbon monoxide detectors are required.
PENNSYLVANIA Carbon monoxide detectors are required.
RHODE ISLAND Carbon monoxide alarms are required in all homes. Specific types and locations required will vary based on age of home.
SOUTH CAROLINA Carbon monoxide detectors are required.
SOUTH DAKOTA Carbon monoxide detectors are required.
TENNESSEE Carbon monoxide detectors are required.
TEXAS Carbon monoxide detectors are required.
UTAH Carbon monoxide detectors are required.
VERMONT Carbon monoxide detectors are required.
VIRGINIA Carbon monoxide detectors are required.
WASHINGTON Carbon monoxide detectors are required.
WEST VIRGINA Carbon monoxide detectors are mandated in all homes with fuel-burning appliances, heaters, or attached garages, storage sheds, or barns.
WISCONSIN Carbon monoxide detectors are required.
WYOMING Carbon monoxide detectors are required in all homes with fuel-burning appliances, heaters, or attached garages.

Smoke Alarm Laws by State

STATE CARBON MONOXIDE DETECTOR REQUIRED?
ALABAMA Smoke alarms shall be installed in bedrooms, in hallways outside bedrooms, and on each story of the dwelling, including basements.
New construction codes require smoke alarms to be hardwired with a battery backup.
ALASKA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
ARIZONA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
ARKANSAS Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
CALIFORNIA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
COLORADO Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
CONNECTICUT Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
DELAWARE Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
FLORIDA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
GEORGIA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
HAWAII Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
IDAHO Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
ILLINOIS Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
INDIANA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
IOWA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
KANSAS Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
KENTUCKY Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
LOUISANA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
MAINE Smoke alarms are required in all homes. Photoelectric smoke alarm must be installed near bathrooms/kitchen. New home construction mandates hardwired smoke alarms with battery back-up.
MARYLAND Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
MASSACHUSETTS Smoke alarms are required in all homes. Smoke alarms installed within 20 feet of kitchens and bathrooms must be photoelectric only New home construction mandates hardwired smoke alarms with battery back-up.
MICHIGAN Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
MINNESOTA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
MISSISSIPPI Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
MISSOURI Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
MONTANA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
NEBRASKA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
NEVADA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
NEW HAMPSHIRE Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
NEW JERSEY Smoke alarms are required in all homes. Smoke alarms powered by a battery must have a non-replaceable, non-removable battery that will power the device for ten years. New home construction mandates hardwired smoke alarms with battery back-up.
NEW MEXICO Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
NEW YORK Smoke alarms are required in all homes. All replacement Smoke alarms must be hard-wired or powered by a 10-year sealed battery.
New home construction mandates hardwired smoke alarms with battery back-up.
NORTH CAROLINA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
NORTH DAKOTA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
OHIO Smoke alarms are required in all homes. In new construction, hard-wired combination smoke alarms utilizing both photoelectric and ionization technology must be installed.
OKLAHOMA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
OREGON Smoke alarms are required in all homes. All ionization smoke alarms must have a sealed 10-year battery and a hush mechanism allowing the alarm to be silenced for no more than 15 minutes.
New home construction mandates hardwired smoke alarms with battery back-up.
PENNSYLVANIA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
RHODE ISLAND Smoke alarms are required in all homes. Specific types and locations required will vary based on age of home. New home construction mandates hardwired smoke alarms with battery back-up.
SOUTH CAROLINA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
SOUTH DAKOTA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
TENNESSEE Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
TEXAS Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
UTAH Smoke alarms are required in all homes.Battery-powered smoke alarms should only be replaced with 10-year sealed battery-powered alarms. New home construction mandates hardwired smoke alarms with battery back-up.
VERMONT Smoke alarms are required in all homes. All smoke alarms must utilize photoelectric technology. New home construction mandates hardwired smoke alarms with battery back-up.
VIRGINIA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
WASHINGTON Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
WEST VIRGINA Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
WISCONSIN Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.
WYOMING Smoke alarms are required in all homes. New home construction mandates hardwired smoke alarms with battery back-up.