SUBJECT NO.	STANDARD NO.	EFFECTIVE DATE	ANNOUNCEMENT LETTER DATE
1	UL 1	04/01/2019	10/18/2017
4	UL 4	02/01/2022	05/18/2021
5	UL 5	05/17/2010	05/21/2007
5	UL 5	01/18/2012	08/12/2010
5	UL 5	03/20/2013	10/07/2011
5A	UL 5A	07/01/2010	08/21/2008
5C	UL 5C	01/31/2012	06/02/2010
6	UL 6	06/30/2006	06/30/2004
6	UL EN 50086	10/01/2018	04/17/2018
6A	UL 6A	01/05/2010	12/05/2008
8	UL ANSI-UL 8 CAN-ULC-S554	02/14/2011	10/02/2005
10	ICC ICC 500	07/31/2017	09/15/2015
10B	ULC CAN-ULC-S104-10	06/30/2012	04/20/2011
10D	UL 10D	04/30/2016	07/25/2014
13	UL 13	05/29/2006	01/17/2006
13	UL 13	12/05/2019	06/06/2018
13	UL 13	11/30/2022	01/08/2021
18	NSF NSF 18	09/23/2013	09/15/2011
19	UL 19	03/05/2021	01/08/2019
20	UL 20	06/01/2006	06/23/2004
21	CSA CSA 8.1-2015 and CSA 8.3-2015	02/01/2019
22	UL 22	05/01/2012	01/07/2011
25	UL 25	06/11/2007	06/10/2005
0032	UL 32	04/04/2016	05/14/2014
32	UL 32	12/15/2005	02/02/2005