76 FR 13289
EPA extended attainment of the 1997 eight-hour ozone NAAQS for the Baltimore moderate nonattainment area until June 15, 2011.
EPA extended attainment of the 1997 eight-hour ozone NAAQS for the Baltimore moderate nonattainment area until June 15, 2011.
EPA finalized amendments to the NESHAPs for existing stationary spark ignition reciprocating internal combustion engines.