N.M. Admin. Code § 13.10.11.33 - CHANGES TO COVERAGE
A group must select one carrier (member) for all participants as of the effective date of the group coverage. A group may only change carriers and plan design, (e.g., level of deductible or co-pay/co-insurance), at the group's anniversary date. All changes must be received by the alliance by the 15th day of the month prior to the group's anniversary date. (Note: If the 15th of the month falls on a weekend or holiday, the documentation must be received by the alliance, or delivered to its post office box, before 5:00 p.m. on the next business day.)
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