UL-437 › Complete Document History
Standard for Key Locks

Complete Current Edition:
   8TH EDITION - Standard for Key Locks - May 15, 2013
   CHANGE 10/17 - REVISION CHANGE - CODE A - Oct. 24, 2017
   CHANGE 01/23 - REVISION CHANGE - CODE A - Jan. 31, 2023

Obsolete Revision Information:
   CHANGE 07/08 - REVISION CHANGE - CODE A - July 25, 2008
   CHANGE 03/04 - REVISION CHANGE - CODE A - March 16, 2004
   7TH EDITION - KEY LOCKS - Aug. 4, 2000
   6TH EDITION - KEY LOCKS - Nov. 25, 1994
   DOD VALIDATION - VALIDATION OF DOD ADOPTION - Feb. 11, 1991
   1986 EDITION - KEY LOCKS - Aug. 21, 1986