In Industry City Management v. Atlantic Mutual Insurance Company, notice of a claim was sent to Atlantic Mutual on Industry’s behalf by its own insurer’s claims administrator, seeking coverage for Industry as an additional insured. The Court held that this was sufficient notice pursuant to Insurance Law 3420(a)(3), and thus required Atlantic Mutual to timely disclaim coverage. Atlantic Mutual’s disclaimer for late notice, made seven months after receipt of the notice from Industry City’s carrier, was untimely and ineffective.

http://www.nycourts.gov/reporter/3dseries/2009/2009_05681.htm