89 FR 19519
SIP Proposal: Wisconsin (second 10-year 2006 24-hour fine particulate matter limited maintenance plan for the Milwaukee-Racine maintenance area).
SIP Proposal: Wisconsin (second 10-year 2006 24-hour fine particulate matter limited maintenance plan for the Milwaukee-Racine maintenance area).
EPA announced the availability of Volumes 1 and 2 of the Integrated Review Plan for the Primary National Ambient Air Quality Standards for Oxides of Nitrogen.
SIP Approval: California (second 10-year particulate matter maintenance plan for Sacramento County).
SIP Approval: California (revisions concerning emissions of nitrogen oxides (NOx) from biomass boilers and reasonably available control technology requirements for major sources of NOx in the portion of the Sacramento Metro nonattainment area in the Yolo-Solano Air Quality Management District).
EPA approved a CAA state plan submitted by South Carolina to establish performance standards and other operating requirements for existing municipal solid waste landfills.