SUPPLEMENTARY INFORMATION:

Along with this proposed rule, EPA is publishing a direct final rule in the “Rules and Regulations” section of today's Federal Register pursuant to which EPA is authorizing these changes. EPA did not issue a proposed rule before today because EPA believes this action is not controversial and does not expect comments that oppose it. EPA has explained the reasons for this authorization in the direct final rule. Unless EPA receives written comments that oppose this authorization during the comment period, the direct final rule in today's Federal Register will become effective on the date it establishes, and EPA will not take further action on this proposal. If EPA receives comments that oppose this action, EPA will withdraw the direct final rule and it will not take effect. EPA will then respond to public comments in a later final rule based on this proposed rule. You may not have another opportunity to comment on these state program changes. If you want to comment on this action, you must do so at this time. For additional information, please see the direct final rule published in the “Rules and Regulations” section of today's Federal Register .