| Circular Number | Circular Title | Summary | State(s) |
| CE-AA-2026-001 | FAST TRACK EXPERIENCE: THIRD QUARTER 2025 ANALYSIS | ISO provides a summary analysis based on data compiled under the Fast Track Monitoring System for several major personal and commercial lines. The current report contains data through the third quarter of 2025. | All |
| LI-CF-2026-065 | PENNSYLVANIA SUPPLEMENT TO THE 2025 COMMERCIAL PROPERTY MULTISTATE LOSS COSTS REVISION TO ACCOMPANY SCOPES REVISION PROVIDED | ISO provides loss costs supplement to multistate filing CF-2025-R25LC for Pennsylvania. ISO cautions the filing has not yet been implemented. The changes are applicable to all policies written on or after January 1, 2027. | PA |
| LI-CF-2026-066 | PENNSYLVANIA SUPPLEMENT TO THE 2025 COMMERCIAL PROPERTY MULTISTATE RULES AND RELATED CLASSIFICATION CHANGES TO ACCOMPANY SCOPES REVISION PROVIDED | ISO provides a rules supplement to multistate filing CF-2025-R25RU for Pennsylvania. ISO cautions the filing has not yet been implemented. The changes are applicable to all policies written on or after January 1, 2027. | PA |

