Are belated enrollments or changes allowed?
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(a) The time limit for enrolling or changing your enrollment may be extended up to 3 months after the date you became newly eligible or had a QLE or after the end of an open season. To qualify, you must demonstrate to the Administrator that you were not able to enroll or change your enrollment on time for reasons beyond your control.
(b) If the Administrator allows you to make a belated enrollment or enrollment change, you must enroll or change within 30 days after the Administrator notifies you of its determination.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.