The emission standards for industrial, commercial and institutional boilers are back on the front burner at the U.S. EPA. In May, the agency suspended the standards it had promulgated just two months before, over concerns that compliance might be too costly or even unachievable. Now the EPA has published proposed revisions to the hazardous air pollutant emission standards for certain boilers and incinerators, including biomass-fueled boilers. The EPA projects the proposed changes, published Dec. 23, will cut the cost of implementation nearly in half from the original proposed rule, while still meeting the requirements of the Clean Air Act. ...
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