UL Listing Survivability

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natfuelbill

Senior Member
If a listed product is installed, and years later becomes dropped as a listed product due to new product safety standards, then does the Code require that the product be replaced with a listed product? The product is a fire alarm control panel.
 

ron

Senior Member
If the product is installed, it does not need to comply with updated current UL listings unless the control panel requires replacement/overhaul. New permits for control panel replacement would require compliance with current UL listing standards at that time, such as the ninth edition of UL 864.
 
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