On March 14, 2003 AGA submitted comments to EPA on National Emission Standards for Hazardous Air Pollutants for Industrial/ Commercial/ Institutional Boilers and Process Heaters (“Proposed Boiler MACT Rule”). These comments note the Proposed Boiler MACT Rule would directly affect AGA member companies in two ways. The Proposed Boiler MACT rule would apply to boilers and process heaters installed at “major sources” of hazardous air pollutants (HAPs). Some of our member gas utility companies use boilers in their operations to provide heat for buildings at natural gas compressor stations or storage facilities for example, and some of these facilities may have sufficient HAP emissions to be “major sources.” Second, although most industrial customers obtain their natural gas directly from pipelines, some obtain their gas from AGA gas utility members. Many of our members also deliver natural gas to commercial customers that use smaller natural gas fired boilers and process heaters as distributed energy. Although most of these commercial facilities have very low HAP emissions, some could be major sources of HAPs subject to the boiler MACT rule.