Smoke Detectors: Gaithersburg vs Takoma Park
How do smoke detectors rules compare between Gaithersburg, MD and Takoma Park, MD?
Gaithersburg and Takoma Park have similar restriction levels.
Gaithersburg, MD
Montgomery County
Maryland Public Safety Article 9-104 requires smoke alarms on every level and in every sleeping area of all residential occupancies. Homes built after 1989 must have interconnected, hardwired alarms with battery backup. Alarms must be replaced every 10 years from date of manufacture.
View full Gaithersburg rules →Takoma Park, MD
Montgomery County
Maryland requires smoke alarms on every level, in bedrooms, and outside sleeping areas. Since 2018, replacements must be sealed 10-year battery or hardwired units.
View full Takoma Park rules →Key Facts Comparison
| Fact | Gaithersburg | Takoma Park |
|---|---|---|
| State Law | MD Public Safety Art. 9-104 | MD Public Safety Art. 9-101 to 9-109 |
| Placement | Every level and sleeping area | Every level, inside bedrooms, outside sleeping areas |
| Post-1990 Homes | Hardwired with battery backup | - |
| Interconnection | Required if 2+ alarms | - |
| Replacement | Every 10 years | - |
| Replacement Standard | - | Sealed 10-year battery or hardwired (since 2018) |
| CO Detectors | - | Required near sleeping areas with fuel-burning appliances |
| Landlord Duty | - | Must ensure compliance at move-in |
Highlighted rows indicate differences between cities.
Gaithersburg FAQ
What type of smoke alarm does my Gaithersburg home need?
Homes built after July 1, 1990 require AC-powered smoke alarms with battery backup. If two or more are required, they must be interconnected. Pre-1975 homes may use sealed long-life battery units.
When must smoke alarms be replaced?
Smoke alarms must be replaced when they exceed 10 years from the date of manufacture, fail operability tests, or when there is a tenant change in rental properties.
Where must smoke alarms be installed?
At least one on each level including basements, and one in each sleeping area. Unoccupied attics, garages, and crawl spaces are excluded.
Takoma Park FAQ
What type of smoke alarm do I need in Takoma Park?
Since January 1, 2018, replacement smoke alarms must be sealed 10-year lithium battery units or hardwired with battery backup. Removable-battery-only alarms no longer meet code for replacements.
Are carbon monoxide detectors required?
Yes. Maryland law requires CO detectors near sleeping areas in homes with fuel-burning appliances (gas furnace, water heater, fireplace) or attached garages.
Compare other topics
See how Gaithersburg and Takoma Park compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool