SIP Proposals: Florida (PSD construction permit program; see above for direct final rule).

SIP Proposal: Colorado (interstate transport of pollution).

SIP Proposals: Alabama (attainment of the 1997 annual average fine PM NAAQS for the Birmingham nonattainment area).

EPA proposed critical use allowances for the production, import, and supply of methyl bromide for calendar year 2011.

EPA proposed conditional or full approval of revisions to the 1997 ozone and fine PM NAAQS submitted by Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin.

EPA announced the availability of the documents titled Ozone National Ambient Air Quality Standards: Scope and Methods Plan for Health Risk and Exposure Assessment, Ozone National Ambient Air Quality Standards: Scope and Methods Plan for Welfare Risk and Exposure Assessment, and Integrated Review Plan for the Ozone National Ambient Air Quality Standards.

EPA proposed to approve negative declarations and requests for EPA withdrawal of its CAA §§111(d) and 129 plan approval for HMIWI, LMWC, SMWC, and OSWI units from Florida, Kentucky, North Carolina, and South Carolina; see above for direct final rule.