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adequate mourcts, and incentives for aotion. 



SPA muat craata lncantivaa and mechanisms to anaura protaction of 

 all air quality ralatad valuaa in claaa I araaa. 



EPA muat aatabllah secondary national aabiant air quality 

 atandarda or othar maaauraa to protact aanaitiva raaoureaa in 

 claaa I araaa. 



flmb auat have a raaponaibility to identify aanaitiva air 

 quality ralatad valuaa, determine whether adverae impact e are 

 preaant, and aatabllah appropriate critical pollutant loading 

 factora that would prevent adverse impact*. 



EPA muat incorporate into ita pending regulatory propoaal a 

 requirement that atataa muat revise their implementation plana 

 if advaraa impacta are occurring on air quality ralatad valuaa 

 in Claaa I areas. 



The new aourca review program muat be supplemented to limit 

 concontrationa of all pollutants that contribute to advaraa impacta 

 on air quality ralatad valuaa in Claaa X araaa. 



EPA muat develop effective measures to limit ozone formation, 

 visibility impairment, and acid deposition. 



If the FLM haa documented that advaraa impacta ara occurring, 

 now sources should be required to offaat any emissions 

 increaaea. Impact -based teat should not ba uaad to avoid 

 mitigation. 



If increment axcaadancaa or adverse impacta on air quality 

 related values have bean documented, and SIP revisions to 

 correct the probloaa have not bean submitted in a timely 

 manner, permits must not ba iaauad for construction of new 

 major sources or major modificationa. 



Congress muat provide FLMs and EPA with additional raaoureaa to 

 inventory raaoureaa; monitor air quality conditions; conduct data 

 analyaaa and raaaarch; and develop, implement and enforce programs 

 to remedy and prevent adverse impacta on air quality related valuaa 

 in national parka and wilderness araaa. 



Respectfully submitted, 



Christine L. Shaver, Esq. ( 

 Environmental Dafanaa Fund 

 1405 Arapahoe Avenue 

 Boulder, Colorado 80302 



