§ 406.33 Determination of months to be counted for premium increase: Enrollment.

(a) Enrollment before April 1, 1981 or after September 30, 1981 and before January 1, 2023. The months to be counted for premium increase are the months from the end of the initial enrollment period through the end of the general enrollment period, the special enrollment period, or the transfer enrollment period in which the individual enrolls, excluding the following:

(1) Any months before September 1973.

(2) For premiums due for months after May 1986, any months beginning with January 1983 during which the individual was enrolled in an employer group health plan based on the current employment of the individual or the individual's spouse.

(3) Any months during the SEP under § 406.24 of this subpart, during which premium hospital insurance coverage is in effect.