Cal. Health & Safety Code § 1358.6
(a)
(b) The following provisions shall be deemed to be unfair, unreasonable, and inconsistent with the objectives of this chapter and shall not be contained in any Medicare supplement contract:
(d)
(3) On and after January 1, 2006, a Medicare supplement contract with benefits for outpatient prescription drugs shall not be renewed after the enrollee or subscriber enrolls in Medicare Part D unless both of the following conditions exist: