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Regulation XX
Amendment and SIP Approval Date 

Amendment Date  Affected Rule  Federal Register Posting Date for Approval
(link to EPA web site)
SIP Approval Date
5/6/2005 2000, 2001, 2005, 2007, 2011, 2012 To Be Determined
1/7/2005 2001, 2002, 2007, 2009, 2010, 2011, 2012 To Be Determined
9/3/2004 2007 To Be Determined
6/4/2004 2015 9/14/2004 10/14/2004
12/5/2003 2007, 2011, 2012 5/21/2004 6/21/2004
5/11/2001 2000, 2001, 2002, 2004, 2006,  2007, 2010, 2012, 2015 9/4/2003 10/6/2003
2011 5/21/2004 6/21/2004
2009, 2009.1, 2020 Not Submitted
4/20/2001 2005 9/4/2003 10/6/2003
3/16/2001 2011, 2012 9/4/2003 10/6/2003
10/20/2000 2000 9/4/2003 10/6/2003
4/9/1999 2005 3/14/2000 4/28/2000
2011, 2012 9/4/2003 10/6/2003
4/11/1997 2000, 2011, 2012 9/4/2003 10/6/2003
2/14/1997 2002, 2005 3/14/2000 4/28/2000
2000, 2001, 2012, 2015 9/4/2003 10/6/2003
2011 5/21/2004 6/21/2004
7/12/1996 2002, 2005 3/14/2000 4/28/2000
2004, 2012, 2015 9/4/2003 10/6/2003
2011 5/21/2004 6/21/2004
5/10/1996 2005 6/15/1998 7/15/1998
12/7/1995 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2011, 2012, 2015 6/15/1998 7/15/1998
9/8/1995 2011, 2012 6/15/1998 7/15/1998
3/10/1995 2002, 2011, 2012 6/15/1998 7/15/1998
10/15/1993 2000, 2001, 2002, 2004, 2005, 2007, 2011, 2012, 2015 11/8/1996 11/9/1996