On March 5, 2009, EPA published new proposed 40 CFR Part 63 rules for reciprocating internal combustion engines (RICE). The rules would affect:
- Engines at facilities classified as "Area Sources" with hazardous air pollutant (HAP) emissions less than 10/25 TPY.
- Engines with horsepower rating less than 500 at major source facilities and constructed/reconstructed before June 12. 2006.
- Engines with horsepower rating greater than 500 at major source facilities and constructed/reconstructed before December 12, 2002.
EPA expects that the new emissions limits would be met by installing "after-treatment" controls such as:
- Existing rich-burn engines would install non-selective catalytic reduction (NSCR).
- Existing diesel engines would install oxidation catalysts and/or catalyzed diesel particulate filters (CDFP).
- Non-emergency engines with greater than 300 horsepower would burn ultra-low sulfur fuel.
Caltha LLP provides expert environmental consultant services in Michigan to obtain environmental permits, evaluate regulatory requirements, and to develop cost effective compliance programs.
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