The U.S. Environmental Protection Agency (EPA) recently issued final amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for stationary Reciprocating Internal Combustion Engines (RICE). The regulation applies to owners and operators of existing and new stationary RICE at major and area sources of hazardous air pollutant emissions. The rules will impact stationary engines that generate electricity and power equipment at industrial, agricultural, oil and gas production and power generation facilities. EPA states that the rulemaking will reduce emissions of pollutants including hazardous air pollutants (HAP), carbon monoxide, particulate matter, nitrogen oxides, and volatile organic compounds.
EPA issued the final amendments as a result of responses to the 2010 RICE NESHAP amendments including petitions for reconsideration, legal challenges, and communications raising issues related to implementation, and information that had not been brought to the EPA’s attention during the 2010 rulemaking. EPA estimates that the final amendments will reduce the capital and annual costs of the original 2010 amendments by $287 million and $139 million, respectively. In addition, EPA estimates that annual health benefits of the updated standards are worth $830 million to $2.1 billion.
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