Federal Register Proposed Rules, Rules and Notices for July 10,2013

July 10,2013

PROPOSED RULES

Approval and Promulgation of Air Quality Implementation Plans; State of
Colorado Second Ten-Year PM10 [FR DOC# 2013-16507] SUMMARY: EPA is
proposing approval of the State Implementation Plan (SIP) revisions
submitted by the State of Colorado. On June 18, 2009, the Governor of
Colorado’s designee submitted to EPA a revised maintenance plan for the Ca
[ntilde]on City area for the National Ambient Air Quality Standards (NAAQS)
for particulate matter with an aerodynamic diameter less than or equal to
10 microns (PM<INF>10</INF>), which was adopted by the State on November
20, 2008. As required by Clean Air Act (CAA) section 175A(b), this revised
maintenance plan addresses maintenance of the PM<INF>10</INF> standard for
a second 10-year period beyond the area’s original redesignation to
attainment for the PM<INF>10</INF> NAAQS. In addition, EPA is also
proposing approval of the revised maintenance plan’s 2020 transportation
conformity motor vehicle emissions budget for PM<INF>10.</INF> This action
is being taken under sections 110 and 175A of the CAA.

 
RULES

Approval and Promulgation of Air Quality Implementation Plans; State of
Colorado; Second Ten-Year PM10 [FR DOC# 2013-16506] SUMMARY: EPA is taking
final action approving State Implementation Plan (SIP) revisions submitted
by the State of Colorado. On June 18, 2009, the Governor of Colorado’s
designee submitted to EPA a revised maintenance plan for the Ca[ntilde]on
City area for the National Ambient Air Quality Standards (NAAQS) for
particulate matter with an aerodynamic diameter less than or equal to 10
microns (PM<INF>10</INF>), which was adopted by the State on November 20,
2008. As required by Clean Air Act (CAA) section 175A(b), this revised
maintenance plan addresses maintenance of the PM<INF>10</INF> standard for
a second 10-year period beyond the area’s original redesignation to
attainment for the PM<INF>10</INF> NAAQS. In addition, EPA is also taking
final action approving the revised maintenance plan’s 2020 transportation
conformity motor vehicle emissions budget for PM<INF>10.</INF> This action
is being taken under sections 110 and 175A of the CAA.

Approval of Air Quality Implementation Plans; Indiana; Approval of
“Infrastructure” SIP With Respect to Source Impact Analysis Provisions for
the 2006 24-Hour PM2.5 [FR DOC# 2013-16512] SUMMARY: Pursuant to its
authority under the Clean Air Act (CAA), EPA is taking final action to
approve portions of submissions made by the Indiana Department of
Environmental Management (IDEM) to address the section 110(a)(1) and (2)
requirements of the CAA, often referred to as the “infrastructure” state
implementation plan (SIP). Specifically, we are finalizing the approval of
portions of IDEM’s submissions intended to meet certain requirements of
sections 110(a)(2)(C), 110(a)(2)(D)(i)(II), and 110(a)(2)(J) of the CAA
with respect to the 2006 24-hour PM<INF>2.5</INF> national ambient air
quality standards (2006 PM<INF>2.5</INF> NAAQS). Among other provisions,
these sections of the CAA require states to perform source impact analyses
as part of their prevention of significant deterioration (PSD) programs.
EPA is finalizing approval of Indiana’s submissions intended to satisfy
this requirement. The proposed rule associated with this final action was
published on August 2, 2012.

 

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