If a self-insured employee welfare benefit plan issued, amended, or renewed in this state on or after the effective date of this section provides in any manner for coverage for an employee and a covered spouse dependent upon such employee, the plan shall not provide for coverage under conditions less favorable for employees than coverage provided for covered spouses dependent upon the employees.

As used in this section, “self-insured employee welfare benefit plan” has the same meaning as that specified in subdivision (b) of Section 10121.