Carbon Monoxide Detectors Required In Washington State

Industry Observer with No Longer Processing Mortgages. MLO #293441 expired

Carbon monoxide detectors? Say what? Yup, on April 1, 2012 there is a new Washington State Point of Sale CO DetectorMandate requiring these to be in single family residential properties sold.   (thanks to Wolf Puls, Seattle King County Realtor President for bringing this to my attention.)

In pertinent part RCW 19.27.530 says, "Owner-occupied single-family residences legally occupied before July 26, 2009, are exempt from the requirements of this subsection (2). However, for any owner-occupied single-family residence that is sold on or after July 26, 2009, the seller must equip the residence with carbon monoxide alarms in accordance with the requirements of the state building code before the buyer or any other person may legally occupy the residence following such sale."   Looks like there may have been slight delay in getting this implemented.

Posted by


Steven CookSteven T Cook
Loan Officer, MLO-293441      

Cascade Pacific Home Loans  NMLS ID 76988
720 S 333rd St  Federal Way  WA  98003
Office 253-874-1111 | Cell 253-677-1064
Toll Free 1-800-874-8760 | fax 253-295-3901 |

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Comments (2)

House Hunt - Huntington Beach, CA

Everyone, everywhere should have a carbon monoxide detector. I like the kind that double as a smoke detector. A little pricier, but worth it.

Mar 26, 2012 07:17 AM
Steven Cook
No Longer Processing Mortgages. - Tacoma, WA

Jaime -- Thanks for stopping by and Commenting.  In the past, especially here in western Washington, most people did not feel they needed one, as they were in an "all-electric" home.  Now that more and more are adding gas heat or hot water, it is becoming more important to have the CO detectors.

Mar 26, 2012 07:58 AM