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No Additional Transport Commissions Established 



The 1990 amendments authorize EPA, on the Administrator's 

 initiative or at the request of states, to designate visibility 

 transport regions wherever the Administrator believes that the 

 interstate transport of air pollution contributes significantly 

 to visibility impairment in class I areas. For each visibility 

 transport region designated, the Administrator is required to 

 establish a visibility transport commission consisting of the 

 governors of the affected states and representatives of EPA and 

 the federal land managers. The commissions are supposed to 

 assess the information pertaining to adverse impacts on 

 visibility and recommend to the Administrator what measures, if 

 any, should be taken to remedy any adverse impacts. 



However, only the Grand Canyon Visibility Transport 

 Commission, which was specifically required by the 1990 

 amendments, has been established. EPA has delayed issuing 

 regional haze regulations pending the recommendations of this 

 Commission, but Park Service officials and others question the 

 applicability of the Commission's findings to class I areas in 

 other regions of the country, especially eastern states, where 

 pollutant levels and meteorology are quite different. Further, 

 EPA and Park Service officials doubt that other visibility 

 transport commissions will be established. According to these 

 officials, the agencies have not considered visibility a high 

 enough priority to devote the resources required at the federal 

 level to establish and adequately support visibility transport 

 commissions. Secondly, few states have expressed an interest in 

 participating in visibility transport commissions. 



Other Clean Air Act Provisions Are 

 Wot Expected To Have Much Impact 



Another reason that EPA held off issuing regional haze 



