Shut down of CO producing equipment upon activation of CO detector

Activation of CO detector directly above CO producing equipment will shut down said equipment. In this scenario, in a day care, a solenoid was installed to close the gas line upon activation of CO detector.
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90sec alarm?

[@TheTm56857]

Is that required by code to shutdown?

[@firealarmcertification5138]

Locally, here in NYC, yes for certain occupancies.

[@clips0292]

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