UL-827 › Complete Document History
Standard for Central-Station Alarm Services
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9TH EDITION - Standard for Central-Station Alarm Services - Nov. 8, 2022
CHANGE 03/23 - REVISION CHANGE - CODE B - March 29, 2023
CHANGE 10/23 - REVISION CHANGE - CODE B - Oct. 19, 2023
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Obsolete Revision Information: |
CHANGE 09/28/21 - REVISION CHANGE - CODE B - Sept. 28, 2021
CHANGE 09/15/21 - REVISION CHANGE - CODE B - Sept. 15, 2021
CHANGE 10/20 - REVISION CHANGE - CODE C - Oct. 27, 2020
CHANGE 05/20 - REVISION CHANGE - CODE B - May 20, 2020
CHANGE 10/19 - REVISION CHANGE - CODE B - Oct. 31, 2019
CHANGE 04/19 - REVISION CHANGE - CODE B - April 11, 2019
CHANGE 04/18 - REVISION CHANGE - CODE B - April 18, 2018
CHANGE 09/16 - REVISION CHANGE - CODE B - Sept. 22, 2016
CHANGE 04/15 - REVISION CHANGE - CODE B - April 2, 2015
8TH EDITION - Standard for Central-Station Alarm Services - Oct. 29, 2014
CHANGE 07/13 - REVISION CHANGE - CODE B - July 3, 2013
CHANGE 03/12 - REVISION CHANGE - CODE B - March 21, 2012
7TH EDITION - Central-Station Alarm Services - June 11, 2008
CHANGE 01/07 - REVISION CHANGE - CODE A - Jan. 12, 2007
6TH EDITION - CENTRAL-STATIONS FOR WATCHMAN, - Oct. 1, 1996
1982 EDITION - CENTRAL-STATIONS FOR WATCHMAN, - Jan. 1, 1982
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