Approval and Promulgation of Air Quality Implementation Plans; Indiana; Prevention of Significant Deterioration Greenhouse Gas Tailoring Rule
EPA is proposing to approve a draft revision to the Indiana State Implementation Plan (SIP), submitted by the Indiana Department of Environmental Management (IDEM) to EPA on December 3, 2010, for parallel processing. The proposed SIP revision modifies Indiana's Prevention of Significant Deterioration (PSD) program to establish appropriate emission thresholds for determining which new stationary sources and modification projects become subject to Indiana's PSD permitting requirements for their greenhouse gas (GHG) emissions. EPA is proposing approval of Indiana's December 3, 2010, SIP revision because the Agency has made the preliminary determination that this SIP revision is in accordance with the Clean Air Act (CAA) and EPA regulations regarding PSD permitting for GHGs.
Draft National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Discharges From Construction Activities
On April 25, 2011, EPA published a draft NPDES general permit entitled ``Draft National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Discharges from Construction Activities.'' As initially published in the Federal Register, written comments on the draft general permit were to be submitted to EPA on or before June 24, 2011 (a 60-day public comment period). Since publication, EPA has received several requests for additional time to submit comments. Therefore, the public comment period is being extended for 17 days and will now end on July 11, 2011.
Pesticides; Policies Concerning Products Containing Nanoscale Materials; Opportunity for Public Comment
EPA seeks comment on several possible approaches for obtaining information about what nanoscale materials are present in registered pesticide products. Under one approach, EPA would use section 6(a)(2) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) to obtain information regarding what nanoscale material is present in a registered pesticide product and its potential effects on humans or the environment. If EPA adopts this approach, 40 CFR 152.50(f)(3) would also require the inclusion of such information with any application for registration of a pesticide product that contains a nanoscale material. Under an alternative approach, EPA would obtain such information using Data Call-In notices (DCIs) under FIFRA section 3(c)(2)(B). If EPA adopts this alternate approach, EPA would also need to require the inclusion of this information with any application for registration of a pesticide product that contains a nanoscale material. It is EPA's view that FIFRA section 6(a)(2) is the most efficient and expedient administrative approach to obtaining information about nanoscale materials in pesticides and EPA would prefer to use this approach. EPA is also proposing a new approach for how EPA will determine on a case-by-case basis whether a nanoscale active or inert ingredient is a ``new'' active or inert ingredient for purposes of FIFRA and the Pesticide Registration Improvement Act (PRIA), even when an identical, non-nanoscale form of the nanoscale ingredient is already registered.