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76 FR 20237

SIP Approval: District of Columbia (1997 eight-hour ozone and 1997/2006 fine particulate matter (PM) NAAQS).

76 FR 27271

EPA suspended the next submission period for the TSCA §8(a) Inventory Update Reporting regulations.

. 76 FR 30027

EPA withdrew rulemaking that granted a site-specific treatment variance to U.S. Ecology Nevada in Beatty, Nevada, and withdrew an existing site-specific treatment variance issued to Chemical Waste Management, Inc. in Kettleman Hills, California, due to adverse comment.

75 FR 79300

SIP Approval: Mississippi (incorporation of nitrogen oxide (NOx) as a precursor to ozone).

76 FR 31241

SIP Approval: Massachusetts (delegation of authority for PSD program)

76 FR 27908

SIP Approval: Massachusetts (carbon monoxide maintenance plan for Lowell)

76 FR 27610

SIP Approval: Maryland (VOC emissions from large appliance coating facilities)

75 FR 81471

SIP Approval: Minnesota (sulfur dioxide (SO2) emissions).

76 FR 27904

SIP Approval: Indiana (updates to definitions)