Connecticut Department of Energy & Environmental Protection

DEEP headquarters at 79 Elm Street in Hartford is currently closed due to recent water damage impacting multiple areas of the building. We are working to remediate the situation and get the building back open to staff and the public as soon as possible. While the building is closed, Staff continue to work either remotely or in alternate locations. We continue to be able to receive documents via U.S. Mail or courier service, and our electronic file submittal protocols remain unchanged. For updates, please click here

Existing Emergency Engine > 500 horsepower

An existing emergency engine that is greater than 500 horsepower and located at a major source of HAP is not subject to NSPS. If your engine does not operate or is not contractually obligated to be available for more than 15 hours for emergency demand response or during periods where there is a deviation of voltage or frequency of 5% or greater below standard voltage or frequency, this engine is not subject to the RICE NESHAP.

If your engine is contractually obligated to be available for more than 15 hours for emergency demand response or during periods where there is a deviation of voltage or frequency of 5% or greater below standard voltage or frequency, the engine must comply with 40 CFR 63.6604(b), 63.6605, 63.6640, and 63.6650(h).

Please review any State-specific emergency engine requirements that may apply to your engine.

 

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