SIP Approval: California (volatile organic compound emissions from large coating operations for wood products in the San Diego air pollution control district).

SIP Approval: Pennsylvania (second maintenance plan for the 1997 eight-hour ozone NAAQS in the Scranton-Wilkes-Barre area).

SIP Proposal: Arizona (limited approval of moderate area nonattainment plan requirements for the 1987 24-hour particulate matter NAAQS).

SIP Proposal: Wisconsin (negative declaration withdrawal for large municipal waste combustors).

EPA announced its final regulatory determinations to regulate perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) and to not regulate 1,1-dichloroethane, acetochlor, methyl bromide (bromomethane), metolachlor, nitrobenzene, and RDX under the SDWA.

SIP Proposal: Missouri (control of volatile organic compound emissions from wood furniture manufacturing operations in the city of St. Louis and Jefferson, St. Charles, Franklin, and St. Louis Counties).

SIP Proposal: Ohio (removal of rules applying to a secondary lead smelter that has permanently shut down).

EPA proposed to approve Michigan's underground injection control Class II program for primacy.

SIP Proposal: Michigan (administrative changes to air pollution control rules).

SIP Approval: West Virginia (second maintenance plan for the 1997 eight-hour ozone NAAQS in the West Virginia portion of the Wheeling, West Virginia-Ohio area).