In June of 2010, the United States Environmental Protection Agency ("EPA") proposed source rules for numerous categories of hazardous air pollutants, including regulations for commercial, industrial and institutional oil fired boilers. If implemented, the proposed rules would have required boilers commonly found in New York City schools, hospitals, churches and municipal buildings to meet strict emission limits for particle matter and carbon monoxide.

However, faced with more than 4,800 comments during the public comment period, which demonstrated that the proposed emission limits for area source, oil fired boilers were based on improper and inadequate information, and could neither be met by currently available equipment nor effectively measured for compliance, the EPA concluded that the proposed numerical emission standards for typical oil burners were unrealistic and otherwise unnecessarily stringent.

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