| Circular Number | Circular Title | Summary | State(s) |
| LI-CM-2026-002 | COMMERCIAL INLAND MARINE MULTISTATE ADVISORY PROSPECTIVE LOSS COST REVISION BEING FILED; EXCEL WORKBOOK INCLUDED | ISO announces advisory prospective loss costs for commercial inland marine representing a -25.0% change has been filed, in accordance with individual state requirements. They caution that the filing has not yet been implemented. The proposed effective date is October 1, 2026. | AK, AR, AZ, CO, CT, DC, DE, HI, IA, ID, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, MT, ND, NE, NH, NJ, NM, NV, OH, OK, OR, PA, RI, SD, TN, UT, VT, WA, WI, WV, WY |

