Statistical Circulars

ISO's statistical circulars provide information that affects statistical plans and procedures, updates on insurance department/legislative activities affecting statistical reporting, and educational material to help you understand statistical requirements. The information in these circulars will keep you informed of all ISO statistical activities. This page is updated periodically.

Please go to ISOnet to access the statistical circulars. To receive statistical circulars, your company must participate with ISO for Statistical Service for the corresponding line of insurance.

Online access
For online access to ISO circulars, you must be an ISOnet subscriber. ISOnet is available to registered users whose companies have subscribed to one or more ISOnet products. If you already subscribe to ISOnet, simply click on the circular number following the circular headline you have selected. Then, enter your user name and password. For information on how to subscribe, please call the ISO Customer Support Center at 1-800-888-4476. Or send e-mail to This email address is being protected from spambots. You need JavaScript enabled to view it..