Patient Protection and Affordable Care Act; Marketplace Integrity and Affordability

Centers for Medicare & Medicaid Services (CMS), Department of Health and Human Services (HHS)

This final rule revises standards relating to denial of coverage for failure to pay past-due premium; excludes Deferred Action for Childhood Arrivals recipients from the definition of “lawfully present;” establishes the evidentiary standard HHS uses to assess an agent's, broker's, or web-broker's potential noncompliance; revises the Exchange automatic reenrollment hierarchy; revises standards related to the annual open enrollment period and special enrollment periods; revises standards relating to failure to file and reconcile, income eligibility verifications for premium tax credits and cost-sharing reductions, annual eligibility redeterminations, de minimis thresholds for the actuarial value for plans subject to essential health benefits (EHB) requirements, and income-based cost-sharing reduction plan variations. This final rule also revises the premium adjustment percentage methodology and prohibits issuers of coverage subject to EHB requirements from providing coverage for specified sex-trait modification procedures as an EHB.

Effective Date: These regulations are effective on August 25, 2025.

Applicability Dates: See section III.D. of this final rule for further information on the applicability dates.