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Simulation and Analysis Plan to Evaluate the Impact of CO Mitigation Requirements for Portable Generators



Steven J. Emmerich, Brian J. Polidoro, Matthew J. Brookman, Janet Buyer, Matthew Hnatov


This report was written by staff of the National Institute of Standards and Technology (NIST) and the U.S. Consumer Product Safety Commission (CPSC, the Commission) under an interagency agreement1 in support of the Commission’s effort to address the carbon monoxide (CO) poisoning hazard associated with consumer use of portable generators. This report presents staff’s plan for evaluating the effectiveness of CO mitigation requirements that were adopted in two voluntary standards in 2018. These two standards are ANSI/PGMA G300-2018, Safety and Performance of Portable Generators (referred to as PGMA G300) and ANSI/UL 2201-2018, Carbon Monoxide (CO) Emission Rate of Portable Generators (referred to as UL 2201). Both voluntary standards have requirements for a system that will shut the generator off when specific CO concentrations are present near the generator. PGMA G300 also has notification requirements to alert the user of the presence of CO after the generator has shut off. UL 2201 does not have a notification requirement but has a reduced CO emission rate requirement. PGMA G300 does not have a reduced CO emission requirement.
Technical Note (NIST TN) - 2048
Report Number
Created June 20, 2019