Statistical Plan Changes — Summary Index

To advise participating companies of changes that impact the seven ISO statistical plans and the Commercial Territory Code Manual (TCM), ISO distributes Statistical Plan Holder circulars on a regular basis and Notices to Manual holders on a quarterly basis. As an additional reference tool, we offer — on a quarterly basis — a Summary Index of Upcoming Statistical Plan Reporting Changes, as a reminder of the mandatory statistical reporting effective dates of changes taking effect within the upcoming two calendar quarters. The most current Summary Index is attached to circular SD-AL-2017-001 / SP-AL-2017-001, (dated 1/3/2017) titled "Upcoming Statistical Reporting Changes Summarized by Effective date for All Statistical Plans."

To receive statistical circulars, your company must participate with ISO for Statistical Service for the corresponding line of insurance. For online access to the ISO circulars referenced in the Summary Index, 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 referenced in the Summary Index. Then, enter your user name and password. For information on how to subscribe, please call Customer Support 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..