Advocacy Alert

Urge Your Lawmakers to Support Essential Health System Designation

CMS Extends Marketplace Special Enrollment Period

Julie Kozminski
April 1, 2024

The Centers for Medicare & Medicaid Services (CMS) on March 28 extended the federal marketplace special enrollment period (SEP) for individuals and families losing Medicaid or Children’s Health Insurance Program (CHIP) coverage through the end of the Medicaid continuous enrollment condition, known as “unwinding.”

Previously, any individual who lost Medicaid or CHIP eligibility between March 31, 2023, and July 31, 2024, was eligible for a SEP to transition to coverage through

However, many states are expected to extend their unwinding timelines for several months, due to the adoption of strategies to promote continuity of coverage for eligible individuals, pauses in procedural disenrollments, or other state-specific situations. Therefore, CMS is extending this SEP to Nov. 30.

Contact Director of Policy Rob Nelb at or 202-585-0127 with questions.

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