This action approves a modification to Alaska's approved 
Municipal Solid Waste Landfill (MSWLF) permit program. The approved 
modification allows the State to issue Research, Development, and 
Demonstration (RD&D) permits to owners and operators of MSWLFs in 
accordance with its State law. On March 22, 2004, EPA issued final 
regulations allowing RD&D permits to be issued to certain MSWLFs by 
approved States. On September 7, 2010, the State of Alaska submitted an 
application to EPA Region 10 seeking Federal approval of its RD&D 
requirements. After thorough review, EPA Region 10 has determined that 
Alaska's RD&D permit requirements are adequate through this direct 
final action.

EPA Region 10 approved a modification to Alaska's municipal solid waste landfill program concerning research, development, and demonstration permit requirements.

SIP Withdrawal: Wisconsin (1997 eight-hour ozone NAAQS for the Milwaukee-Racine and Sheboygan areas)

SIP Approval: Tennessee (maintenance plan for the Nashville area)

SIP Approval: Wisconsin (fine PM)

EPA is taking direct final action to approve revisions to the 
Commonwealth of Virginia State Implementation Plan (SIP). The revisions 
add the primary and secondary lead standards of 0.15 micrograms per 
cubic meter ([mu]g/m\3\), related reference conditions, and update the 
list of appendices under ``Documents Incorporated by Reference.'' 
Virginia's SIP revisions for the national ambient air quality standards 
(NAAQS) for lead are consistent with the Federal lead standards. This 
action is being taken under the Clean Air Act (CAA).

SIP Approval: Virginia (lead standards and related updates)

EPA is approving a State Implementation Plan (SIP) revision 
submitted by the Commonwealth of Virginia. This SIP revision consists 
of amendments to the Commonwealth's existing regulations in order to 
clarify and recodify provisions covering case-by-case reasonably 
available control technology (RACT), as well as to add the 1997 8-hour 
ozone national ambient air quality standard (NAAQS) RACT requirements 
to the Commonwealth's regulations. This action is being taken under the 
Clean Air Act (CAA).

SIP Approval: Virginia (reasonably available control technology and addition of the 1997 eight-hour ozone NAAQS)

SIP Approval: Virginia (addition of the 2008 eight-hour ozone NAAQS and related updates)