Multiple section 125 plans within one employer group

[Guest AHayhow]

Can an employer maintain multiple section 125 plans (pre-tax premiums only)? We have an employer group that offers multiple medical coverages.

For instance:

Coverage A has a renewal date of 1/1 (along with the dental plan).

Coverage B has a renewal date of 5/1

The Cafeteria Plan runs 1/1 - 12/31

When the Coverage B carrier comes back with a rate increase for 5/1, I understand that current participants can elect to drop or reduce coverage, but everything I read indicates that eligible employees that did not elect to participate in Coverage B during eligibility period, can not elect (because increase in premiums is not consistent with an employee adding a benefit).

Since the section 125 plan runs 1/1 - 12/31, Coverage B participants would be eligible under the cafeteria plan to make changes for 1/1, however, the carrier for Coverage B won't since the pan renewal is 5/1.

Any insight is greatly appreciated!