ASME-B31.1 › Complete Document History
Code on Power Piping

Complete Current Edition:
   2022 EDITION - Power Piping - Oct. 10, 2022

Obsolete Revision Information:
   2020 EDITION - Power Piping - Sept. 30, 2020
   2018 EDITION - POWER PIPING - July 20, 2018
   ADOPT WITHDRAWN - FYI ONLY: DOD ADOPTION WITHDRAWN - Sept. 8, 2016
   2016 EDITION - Code on Power Piping - Aug. 30, 2016
   2014 EDITION - Code on Power Piping - Aug. 1, 2014
   2012 EDITION - Power Piping - June 25, 2012
   2010 EDITION - Power Piping - Jan. 1, 2010
   2007 EDITION - Power Piping - Jan. 1, 2007
   2005 EDITION ADDENDA A - ADDENDA A FOR THE 2004 EDITION - May 1, 2006
   2004 EDITION - Power Piping - Jan. 1, 2004
   2001 EDITION ADDENDA A - ADDENDA A FOR 2001 EDITION - Sept. 30, 2003
   2001 EDITION - Power Piping - Dec. 10, 2001
   1998 EDITION ADDENDA B - ADDENDA B FOR 1998 EDITION - March 15, 2001
   1998 EDITION ADDENDA A - ADDENDA A FOR 1998 EDITION - Nov. 30, 1999
   19998 EDITION INTERPRETATION 32 - INTERPRETATION #32 FOR 1998 ED - May 31, 1999
   1998 EDITION - Power Piping - Aug. 21, 1998
   1995 EDITION INTERPRETATION 29 - INTERPRETATIONS #29 FOR '95 ED - Sept. 30, 1997
   1995 EDITION ADDENDA B - ADDENDA B FOR 1995 EDITION - Feb. 28, 1997
   1995 EDITION ADDENDA C - ADDENDA C FOR 1995 EDITION - Jan. 1, 1997
   1995 EDITION INTERPRETATION 27 - INTERPRETATIONS #27 FOR '95 ED - Sept. 30, 1996
   1995 EDITION ADDENDA A - ADDENDA A FOR 1995 EDITION - April 8, 1996
   1995 EDITION CASES 21 - CASES 21 FOR 1995 EDITION - Sept. 22, 1995
   1995 EDITION - Power Piping - July 21, 1995
   1992 EDITION INTERPRETATION 24 - INTERPRETATIONS #24 FOR 1992 ED. - June 30, 1994
   1992 EDITION ADDENDA C - ADDENDA C FOR 1992 EDITION - Jan. 1, 1994
   1992 EDITION INTERPRETATION 22 - INTERPRETATIONS #22 FOR 1992 ED. - June 30, 1993
   1992 EDITION ADDENDA B - ADDENDA B FOR 1992 EDITION - Feb. 28, 1993
   1992 EDITION INTERPRETATION 20 - INTERPRETATIONS #20 FOR 1992 ED. - Oct. 31, 1992
   1992 EDITION - Power Piping - Jan. 1, 1992
   1989 EDITION INTERPRETATION 18 - INT# 18 - Jan. 1, 1991
   1989 EDITION INTERPRETATION 16 - INT# 16 - Jan. 1, 1990
   1986 EDITION ADDENDA C - ADDENDA C FOR 1986 EDITION - July 31, 1989
   1989 EDITION INTERPRETATION 14 - INT# 14 - Jan. 1, 1989
   1989 EDITION - Power Piping - Jan. 1, 1989
   1986 EDITION ERRATA - SPECIAL ERRATA FOR 1986 ED. - June 30, 1988
   1986 EDITION - Power Piping - Jan. 1, 1986
   1973 EDITION - OBSOLETE REVISION BY REQUEST - COMPLETE - Jan. 1, 1973