On December 20, 2002, the U.S. Environmental Protection Agency (EPA) proposed national emission standards for hazardous air pollutant (HAP) emissions from lime manufacturing plants located at major source facilities (67 FR 78046). These proposed standards implemented section 112(d) of the Clean Air Act as amended in 1990 (CAA). There were 24 comment letters on the proposal (see Table 1-1), and the commenters consisted of trade associations, manufacturers, and engineering firms, and the general public. Summaries of the comments, and the EPA's responses, are presented in this background information document (BID Volume II).

For more information on the rule, visit the regulation page for Lime Manufacturing Plants National Emission Standards for Hazardous Air Pollutants (NESHAP).

• National Emission Standards for Hazardous Air Pollutants (NESHAP) for Lime Manufacturing Background Information Document (BID): Public Comments and Responses (PDF)(63 pp, 267 K, August 20, 2003)