00cefaae_cial_Enrollment_Periods__SEPs___When_does_my_coverage_begin_
[SEP Event] Loss of coverage (Some examples include losing job-based coverage, divorce, receiving a renewal for a non-ACA compliant plan, COBRA expiration, aging off a parent’s plan, or losing eligibility for Medicaid or CHIP.) [When can I enroll?] Up to 60 days before and up to 60 days after the event [When does my coverage begin?] 
If you’ve already lost coverage, your new plan will begin on the first day of the month after you enroll. If you will be losing coverage, your new plan begins on the first day of the month after your old plan ends.
Health First Individual | Special Enrollment Periods (SEPs)
When does my coverage begin?