The Third Edition of the Standard for Safety for External Corrosion Protection Systems for Steel Underground Storage Tanks, UL 1746 which includes proposals discussed at the STP 58 meeting held May 2, 3 and 4, 2006.
ANSI/UL 1746-2007 history
2007ANSI/UL 1746-2007 Standard for Safety for External Corrosion Protection Systems for Steel Underground Storage Tanks, UL 1746