UL-2201 › Complete Document History
Standard for Portable Engine-Generator Assemblies

Complete Current Edition:
   CHANGE 01/18 - REVISION CHANGE 01/18 - Jan. 24, 2018
   CHANGE 02/23 - REVISION CHANGE 02/23 - Feb. 24, 2023

Obsolete Revision Information:
   2ND EDITION - Standard for Portable Engine-Generator Assemblies - Jan. 9, 2018
   CHANGE 02/11 - REVISION CHANGE - CODE B - Feb. 28, 2011
   CHANGE 12/09 - REVISION CHANGE - CODE B - Dec. 4, 2009
   1ST EDITION - Standard for Portable Engine-Generator Assemblies - March 4, 2009