EPA proposed to approve Colorado's CAA §111(d) plan pertaining to performance standards and other operating requirements for control of emissions from municipal solid waste landfills.

EPA proposed to approve Colorado's CAA §111(d) plan pertaining to performance standards and other operating requirements for control of emissions from municipal solid waste landfills.

EPA proposed to approve Colorado's CAA §111(d) plan pertaining to performance standards and other operating requirements for control of emissions from municipal solid waste landfills.

EPA proposed to approve Colorado's CAA §111(d) plan pertaining to performance standards and other operating requirements for control of emissions from municipal solid waste landfills.

SIP Proposal: New York (revisions to update and streamline process operations).

SIP Proposal: New York (revisions to update and streamline process operations).

SIP Proposal: New York (revisions to update and streamline process operations).

SIP Proposal: New York (revisions to update and streamline process operations).

SIP Proposal: New York (revisions to update and streamline process operations).

SIP Proposal: New York (infrastructure requirements for the 2015 ozone NAAQS).