whichever period is longest. If health insurance coverage is offered by the unit to an eligible employee, the health insurance provided to a surviving spouse or child under this subsection must be equal in coverage to that offered to an eligible employee. The offer to provide and pay for health insurance coverage shall remain open for as long as there is a surviving spouse or as long as a natural child, stepchild, or adopted child of the eligible employee is eligible for coverage under subdivision (1), (2), or (3).
IC 36-8-10-16.5