The Chile Financial Market Commission has issued an amendment to General Rule No. 243 on technical reserves for Disability and Survivors' Insurance (SIS), updating the calculation methodology to improve technical consistency and better align with international standards. The changes adjust the approach to premium sufficiency tests, refine reserve models for claims in the process of settlement, and introduce methodological updates to reserves for incurred and unreported survival claims, among other elements. The final regulation incorporates feedback from the public consultation held between 3 July and 4 August 2025, and is accompanied by a Regulatory Report setting out core elements and an impact assessment.