HB 1539 mandates that the executive commissioner of the Health and Human Services Commission seek a federal waiver under Section 1115 of the Social Security Act. This waiver would authorize a continuous eligibility period for Medicaid coverage for children five years of age or younger. Under the waiver, these children would remain eligible for medical assistance without additional reviews or consideration of changes in household income or resources until their sixth birthday. The legislation also directs the adoption of rules to implement this change upon waiver approval and specifies that implementation can be delayed until the waiver is granted.