Air Plan Approval; Indiana; Shipbuilding Antifoulant Coatings

The Environmental Protection Agency (EPA) is proposing to approve, as a revision to the Indiana State Implementation Plan (SIP), a submittal by the Indiana Department of Environmental Management dated July 17, 2015. The submittal contains a new volatile organic compound limit for antifoulant coatings used in shipbuilding and ship repair facilities located in Clark, Floyd, Lake, and Porter counties. The submittal also includes a demonstration that this revision satisfies the anti-backsliding provisions of the Clean Air Act. The submittal additionally removes obsolete dates and clarifies a citation.