http://www.epa.gov/airmarkets/airtransport/petitions.html2012-02-09T14:42:03+00:00weekly0.5 http://www.epa.gov/airmarkets/airtransport/petitions/DTEStoneman.pdf2012-02-09T13:35:28+00:00weekly0.5 http://www.epa.gov/airmarkets/airtransport/petitions/EMEHomerCity.pdf2012-02-09T13:35:24+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/fr20070622.pdf2012-02-09T14:26:18+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/pfr_arripa.pdf2012-02-09T14:26:26+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/pfr_colver.pdf2012-02-09T14:26:23+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/pfr_nc.pdf2012-02-09T14:26:24+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/pfr_selc.pdf2012-02-09T14:26:29+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/pfrcover_arripa.pdf2012-02-09T14:26:18+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/pfrcover_nc.pdf2012-02-09T14:26:19+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/r_arripa.pdf2012-02-09T14:26:27+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/r_colver.pdf2012-02-09T14:26:27+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/r_nc.pdf2012-02-09T14:26:28+00:00weekly0.5 http://www.epa.gov/airmarkets/progsregs/cair/Jun2007/r_selc.pdf2012-02-09T14:26:29+00:00weekly0.5