89 FR 29440
EPA promulgated new greenhouse gas emissions standards for model year (MY) 2032 and later heavy-duty highway vehicles that phase in starting as early MY 2027 for certain vehicle categories, updated discrete elements of the Averaging Banking and Trading program, and added warranty requirements for batteries and other components of zero emission vehicles.
89 FR 29328
EPA announced the availability of data on emission allowance allocations to certain units under the Cross-State Air Pollution Rule trading programs.
89 FR 29257
SIP Approval: California (revisions to nonattainment new source review requirements for the 2015 ozone NAAQS in the Feather River Air Quality Management District).
89 FR 29259
EPA made an interim final determination that the California Air Resources Board submitted a revised rule on behalf of the Antelope Valley Air Quality Management District and Mojave Desert Air Quality Management District that corrects deficiencies identified in its SIP provisions concerning rules submitted to address nonattainment fees for the 1979 one-hour ozone NAAQS.
89 FR 28640
SIP Approval: Iowa (updates to incorporations by reference to methods for performance testing, updates to definitions, and adoption of most recent ozone NAAQS).
89 FR 27697
SIP Proposal: Iowa (revisions to definitions, references to federal rules, and methods and procedures for performance test/stack test and continuous monitoring system).