| Circular Number | Circular Title | Summary | State(s) |
| LI-GL-2026-201 | DELAWARE UPDATED GENERAL LIABILITY LOSS COSTS REVISIONS REFLECTING REVISED CLASSIFICATION STRUCTURE APPROVED | ISO announces the approval of a Delaware general liability loss costs filing revision after receiving approval from the state insurance department. | DE |
| LI-BP-2026-057 | PENNSYLVANIA BUSINESSOWNERS ADVISORY PROSPECTIVE LOSS COST REVISION FILED; EXHIBITS PRESENTED IN EXCEL | ISO announces revised loss costs representing a combined +0.3 statewide change have been filed in Pennsylvania. ISO cautions the filing has not yet been implemented. The changes are applicable to all policies effective on or after March 1, 2027. | PA |

