EPA Emission Standards for Reciprocating Internal Combustion Engines and New Source Standards for Stationary Internal Combustion Engines
EPA is proposing amendments to the national emission standards for hazardous air pollutants for stationary reciprocating internal combustion engines. The proposed amendments include alternative testing options for certain large spark ignition (generally natural gas-fueled) stationary reciprocating internal combustion engines, management practices for a subset of existing spark ignition stationary reciprocating internal combustion engines in sparsely populated areas and alternative monitoring and compliance options for the same engines in populated areas. EPA is also proposing to include a limited temporary allowance for existing stationary emergency area source engines to be used for peak shaving and non-emergency demand response. In addition, EPA is proposing to increase the hours that stationary emergency engines may be used for emergency demand response. The proposed amendments also correct minor mistakes in the pre-existing regulations. Comments are due July 23, 2012, or 30 days after date of public meeting if later. http://www.gpo.gov/fdsys/pkg/FR-2012-06-07/html/2012-13193.htm