1960s1960 - December 2, 19601961 - April 25, 1961 STM1962 - December 21, 1962 STM1967 - March 24, 1967 Amendments1968 - April 5, 1968 Amendments1968 - December 16, 1968 Amendments 1968 - March 22, 1968 Amendments1968 - October 4, 1968 Amendments1969 - December 3, 1969 Amendments1969 - January 1, 19691969 - March 21, 1969 ATM1970s1970 - March 20, 19701970 - March 4, 19701970 - October 19, 19701970 - October 23, 1970 Amendments1971 - June 23, 19711971 - May 19, 1971 STM1971 - October 15, 19711972 - October 4, 19721973 - March 1973 ATM1975 - December 31, 1975 - Appendix A1975 - March 1975 ATM 1976 - March 19, 19761976 - March 1976 ATM1977 - March 1977 ATM1977 - March 25, 19771978 - January 25, 19781978 - June 1978 ATM1978 - March 24, 19781979 - February 14, 19791979 - June 27, 19791979 - September 5, 19791980s1980 - December 15, 1980 Amendments1980 - September 17, 1980 Amendments1981 - May 27, 1981 ATM1982 - December 1, 1982 STM1983 - May 18, 1983 ATM1984 - April 25, 1984 Amendments1984 - August 8, 1984 Amendments1984 - June 13, 1984 Amendments 1984 - November 15, 1984 Amendments1985 - April 24, 1985 ATM1986 - November 23, 1986 ATM1987 - March 4, 1987 STM1987 - May 27, 1987 ATM1988 - March 23, 1988 STM1988 - October 26, 1988 STM1989 - November 9, 1989 STM1990s1990 - May 23, 1990 ATM1991 - May 22, 1991 ATM1992 - May 27, 1992 ATM1994 - May 25, 1994 ATM1995 - May 24, 1995 ATM1996 - May 22, 1996 ATM1997 - May 28, 1997 ATM1998 - May 27, 1998 ATM1998 - October 14, 1998 STM1999 - May 19, 1999 ATM2000s2001 - October 10, 2001 STM2002 - May 22, 2002 ATM2002 - October 9, 2002 STM2004 - October 13, 2004 STM2005 - October 12, 2005 STM2006 - October 11, 2006 STM2007 - May 23, 2007 ATM2009 - October 14, 2009 STM2010s2010 - October 13, 2010 STM2011 - May 25, 2011 Amendments2011 - October 12, 2011 Amendments2012 - May 23, 2012 Amendments2013 - October 9, 2013 ATM & STM2014 - October 8, 20142015 - October 14, 20152016 - October 19, 2016