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Circular Number Circular Title Summary State(s)Date
LI-CA-2025-082 COMMERCIAL AUTO 2024 MULTISTATE RULES AND LOSS COSTS REVISIONS TO BE IMPLEMENTED IN ADDITIONAL JURISDICTIONS ISO is implementing Commercial Auto multistate and state-specific rules and loss costs revisions in 4 jurisdictions. TULES - AZ, PA: These changes are applicable to all policies written on or after July 1, 2025. AK, NC: These changes are applicable to all policies effective on or after September 1, 2025. LOSS COSTS - AZ, PA: These changes are applicable to all policies written on or after July 1, 2025. This effective date applies only to those insurers who have filed their Commercial Auto loss cost adjustments to be automatically applicable to future ISO loss cost revisions. AK, NC: These changes are applicable to all policies effective on or after September 1, 2025. This effective date applies only to those insurers who have filed their Commercial Auto loss cost adjustments to be automatically applicable to future ISO loss cost revisions. Note: The announcement of implementation in a particular jurisdiction includes the implementation of the multistate filings and any state supplement and/or amendment filing. AK, AZ, NC, PA 3/28/2025
LI-PA-2025-060 PERSONAL AUTO MODEL YEAR RATING PROGRAM: SHIFT TO BASE MODEL YEAR 2026 EXPLAINED The annual update of Model Year Rating program information provides the offset calculations and related actuarial information needed to shift to model year 2026 as the base model year. All except HI, MA, NC, PR 3/28/2025