Where does one obtain a copy of a California State Fire Marshal (CSFM) listing of CO device?
Copies of CSFM listing of CO devices can be found on the State Fire Marshal website. Under “Category”, click on the sort by
number button, then go to the drop down menu (right down arrow) to select “5276-CARBON MONOXIDE ALARMS” or “5278-CARBON MONOXIDE DETECTORS”. Then Click on “Search” and it will list all CO alarms or detectors that are currently approved and listed by the OSFM. State Fire Marshal Website

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1. What is Senate Bill No. 183 (SB-183)?
2. What is Carbon Monoxide?
3. What is the effective date for installing a CO device?
4. Where can I find a list of all CS FM listed carbon monoxide devices?
5. What is the definition of a dwelling unit?
6. Where should CO devices be installed in homes?
7. How many types of CO devices are available?
8. What is the difference between a carbon monoxide alarm and a carbon monoxide detector?
9. Are CO devices required to be approved by the State Fire Marshal?
10. If someone has a CO device that is not listed by the State Fire Marshal prior to the law, can they maintain it or does it have to be replaced?
11. Where does one obtain a copy of a California State Fire Marshal (CSFM) listing of CO device?
12. Where can I go to receive further information on Carbon Monoxide?
13. Who can we contact at CAL-FIRE/CSFM for additional information?