California State Nonroad Engine Pollution Control Standards; Amendments to Spark Ignition Marine Engine and Boat
Regulations; Request for Authorization; Opportunity for Public Hearing and Comment [FR DOC# 2013-20153] SUMMARY:
The California Air Resources Board (CARB) has notified EPA that it has adopted amendments to the California Spark
Ignition Marine Engine and Boat Regulations (2008 Marine SI Amendments or 2008 Amendments). CARB requested EPA
confirmation that some of the 2008 Amendments are within the scope of prior EPA authorizations or alternatively that EPA
grant full authorization for those amendments. CARB also requested confirmation that additional amendments require and
merit full authorization. This notice announces that EPA has tentatively scheduled a public hearing and is now accepting
written comment on California’s request for authorization of the 2008 Marine SI Amendments.
Approval and Promulgation of Air Quality Implementation Plans; Indiana; Infrastructure SIP Requirements for the 2008 Lead
and Ozone National Ambient Air Quality Standards; Indiana PSD; Indiana State Board Requirements [FR DOC# 2013-
20155] SUMMARY: EPA is proposing to approve elements of state implementation plan (SIP) submissions by Indiana
regarding the infrastructure requirements of sections 110(a)(1) and (2) of the Clean Air Act (CAA) for the 2008 lead and
2008 8-hour ground level ozone national ambient air quality standards (2008 Pb and ozone NAAQS). The infrastructure
requirements are designed to ensure that the structural components of each state’s air quality management program are
adequate to meet the state’s responsibilities under the CAA. EPA is also proposing to approve portions of submissions
from Indiana addressing EPA’s requirements for the prevention of significant deterioration (PSD) program. Lastly, EPA is
proposing to approve a submission from Indiana addressing the state board requirements under section 128 of the CAA.
Approval and Promulgation of Air Quality Implementation Plans; Michigan [FR DOC# 2013-20157] SUMMARY: On
February 6, 2013, EPA proposed to approve revisions to the State of Michigan’s Clean Air Act State Implementation Plan
(SIP) that Michigan had submitted on March 24, 2009. Michigan’s submittal included revisions to Part 1, Definitions; Part
2, Air Use Approval; and Part 19, New Source Review for Sources Impacting Nonattainment Areas, of the Michigan rules.
EPA is revising the February 6, 2013, proposed approval to announce that we will not take action on the changes to Part 2
Air Use Approval rules and of the Part 2 revision submittals on November 12, 1993, May 16, 1996, April 3, 1998,
September 2, 2003, and March 24, 2009, at this time. EPA is proposing to rescind Michigan’s rule 336.1220 from its SIP.
Michigan included this request to rescind this portion of the rule in its March 24, 2009, submittal as part of the Part 19
New Source Review rule approval. The rescission of rule 336.1220 will eliminate having differing nonattainment rules in the