Who qualifies
The rule for Medicare Advantage is 42 CFR §422.62(b)(18); the matching Part D rule is 42 CFR §423.38(c)(23). As published in the eCFR on November 9, 2026, you qualify if all of these are true:
- You live, or lived when the window started, in an area where a federal, state or local government declared an emergency or major disaster, or you live elsewhere but rely on someone in that area to help make your health care decisions.
- You were eligible for another enrollment period during that time.
- You didn't make your choice during that period because of the emergency or disaster.
The eCFR history shows no change to this section in 2025, and the 2026 amendments to the section left this paragraph as it was, so state and local declarations still count.
When it starts and ends
| Event | Rule |
|---|---|
| Start | The declaration date, the incident start date or the start date in the declaration, whichever is earliest |
| End | Two full calendar months after the incident's end date |
| No end date given | The incident is treated as ending one year after the start (or after any renewal), so the window can last up to 14 full months |
Oklahoma example: if a December 2026 tornado emergency kept you from finishing a plan change before Open Enrollment closed on December 7, 2026, you could make that change during the disaster window.
For Part B or premium Part A, Medicare.gov says you might also have a Special Enrollment Period if a declared disaster kept you from signing up.
How to use it
- Confirm the declaration. Check the Governor's executive orders, your county emergency management office or FEMA's Oklahoma declarations page.
- Call 1-800-MEDICARE. Explain that the disaster kept you from making your change.
- Pick your plan and enroll before the window closes.
See our guide to tornadoes, ice storms and Medicare and our enrollment periods page. To compare plans from the companies they work with, you can request a call from a licensed insurance agent or see plans for your ZIP code.
Related questions
Medicare after a tornado
What plans must do.
Early refills in a disaster
Getting your medicines.
Generators and Medicare
Power outages and equipment.
Sources
- 42 CFR §422.62(b)(18) — SEP for emergencies and major disasters (eCFR, current as of November 9, 2026)
- 42 CFR §423.38(c)(23) — Part D SEP for emergencies and major disasters
- Medicare.gov — Emergencies and disasters
- Office of the Governor — State of emergency following severe weather (March 2026)
- FEMA — Oklahoma disaster declarations
More questions in this guide
- Can I get an early prescription refill before an ice storm or after a tornado?
- Does Medicare cover telehealth visits in rural Oklahoma?
- Does Medicare pay for a generator for my oxygen or medical equipment?
- What happens to my Medicare coverage after a tornado in Oklahoma?
- What is a rural emergency hospital in Oklahoma and does Medicare cover it?
Part of the guide: Tornadoes, Ice Storms and Your Medicare in Oklahoma · All questions
Frequently asked questions
Does the disaster SEP need a FEMA declaration?
No. The current rule, 42 CFR §422.62(b)(18), covers emergencies or major disasters declared by a federal, state or local government entity. In Oklahoma that includes a Governor's executive order declaring a state of emergency for your county.
Can I use it to switch plans for any reason?
No. You must have been eligible for another enrollment period during the disaster, such as Open Enrollment, and not made your choice because of the disaster. It lets you make the election you missed.
What if the tornado destroyed my home and I moved?
A permanent move to a new address can give you a separate Special Enrollment Period to change plans, even without the disaster rule. Tell your plan and Social Security your new address.
Medicare in your Oklahoma county
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