What it does
CU 00 06 is one of the umbrella endorsements in ISO's 2025 multistate filing (CU-2025-OMMFR), all with 01 26 editions. It replaces the umbrella's war exclusion with ISO's revised war wording. Alaska has its own version (CU 01 71).
Who needs it
All umbrella accounts; carriers adopting ISO's 2025 forms attach it broadly.
How it fits the umbrella
The umbrella has its own exclusions that apply whether or not the underlying policies cover the claim, and many ISO umbrella exclusion endorsements mirror a CGL or auto exclusion so that the umbrella does not drop down where the underlying is excluded. When an underlying policy carries an exclusion, check that the umbrella carries the matching CU endorsement, or explain the gap if it does not.
Quoting and selling notes
- Check whether the underlying CGL carries the matching exclusion; if the umbrella excludes what the primary covers, explain the limit gap.
- These are new filings; adoption dates vary by carrier and state.
Related forms
See CU 00 01.
