One may have anticipated that an extension period was likely in the Proposed Petroleum Refinery Risk and Technology Review and New Source Performance Standards rule making process. EPA has made it official - the comment period on the the proposed rule will now close on October 28, 2014. (You can see the Extension Notice here. The Federal Register Notices is located here.
The Public Hearings on the proposed rule have been very active, if local newspaper accounts are to be believed.
The extension in this case is very much needed due to the breadth and scope of the proposed rule making.
Do you know where all of the current operating refineries are? Here is a Map of the current locations.