General Assembly Substitute Bill No. 1220 seeks to amend section 5-259 of the general statutes to include state marshals in the group hospitalization and medical and surgical insurance plans available to various state employees and officials. The bill repeals subsections (a) to (l) of the current law and replaces them with new provisions that explicitly add state marshals as eligible participants, marked by the insertion of "(9) state marshals" into the list of covered individuals. Additionally, the bill streamlines eligibility criteria by deleting certain phrases, such as the removal of "and" before the surviving spouse and dependent children of municipal employees. The effective date for these changes is set for October 1, 2025.

Moreover, the bill expands health insurance coverage options for adoptive parents, probate judges, and employees of municipalities and nonprofit organizations. It allows adoptive parents to maintain coverage until their child is covered under a group health plan or reaches the age of twenty-six. The bill also stipulates that the Probate Court Administration Fund will cover part of the insurance premiums for probate judges and court employees. Furthermore, it ensures that employees of municipalities and small employers can voluntarily participate in plans procured by the Comptroller without being denied entry based on health care costs. The eligibility date for state marshals to participate in these insurance plans is changed to October 1, 2025, and those working fewer than twenty hours per week can also participate by paying the full cost of coverage.