●  Comprehensive Chart of Rule Amendments, listed by Date (in PDF)
●   4/27/1990 (in PDF)
●  7/13/1990 (in PDF)
●  9/21/1990 (in PDF)
●  8/5/1991 (in PDF)
●  11/6/1991 (in PDF)
●  12/9/1991 (in PDF)
●  2/26/1992 (in PDF)
●  6/18/1992 (in PDF)
●  7/14/1994 (in PDF)
●  10/28/1994 (in PDF)
●  2/6/1996 (in PDF)
●  6/4/1997 (in PDF)
●  9/23/1997 (in PDF)
●  10/8/1997 (in PDF)
●  6/11/1998 (in PDF)
●  7/9/1998 (in PDF)
●  12/30/1998 (in PDF)
●  7/16/1999 (in PDF)
●  6/9/2000 (in PDF)
●  12/15/2000 (in PDF)
●  3/28/2001 (in PDF)
●  3/28/2001-2 (in PDF)
●  5/30/2001 (in PDF)
●  1/28/2003 (in PDF)
●  12/23/2003 (in PDF)
●  1/30/2004 (in PDF)
●  1/30/2004-2 (in PDF)
●  3/14/2006 (in PDF)
●  12/27/2006 (in PDF)
●  12/27/2006-2 (in PDF)
●  1/9/2007 (in PDF)
●  4/8/2010  (in PDF)
●  2/4/2011 (in PDF)