United Policyholders submitted multiple letters in support of the petition for review as well as an amicus brief on the merits. UP’s submissions argue that when interpreting insurance policies, courts should not refuse to consider relevant extrinsic evidence simply because the policy language appears unambiguous on its face. California law requires courts to examine evidence such as drafting history and industry usage before deciding whether a policy provision is reasonably susceptible to a policyholder’s interpretation.
Montrose Chemical Corp. of California v. Superior Court (Canadian Universal)
Year
2026
Court
California Supreme Court
Case Number
S285083, S293914
Issue
- Extrinsic Evidence & Qualified Pollution Exclusion
State
- California