| Circular Number | Circular Title | Summary | State(s) |
| AM-FR-2026-001 | AD HOC FARM PANEL TELECONFERENCE MINUTES ATTACHED | ISO provides the minutes for the Ad Hoc Farm Panel teleconference that took place on December 11, 2025. | All |
| LI-PR-2026-023 | PENNSYLVANIA MEDICAL PROFESSIONAL LIABILITY ADVISORY PROSPECTIVE LOSS COST REVISION FILED | ISO announces a revised loss costs change representing a combined -10.0% from the current loss costs for medical professional liability in Pennsylvania. ISO cautions the filing is not yet implemented. The changes are applicable to all policies written on or after July 1, 2026. | PA |

