Section 123220 Of Chapter 3. Catastrophic Health Insurance From California Health And Safety Code >> Division 106. >> Part 1. >> Chapter 3.

. If studies or research demonstrate that it is in the best interest of the program, the director may adopt regulations setting forth modifications to the coverage provided under the program. No modification shall apply to any coverage provided by a policy or contract issued prior to the operative date of the regulation, except that the modification shall apply to coverage provided after any renewal of the policy or contract occurring after the operative date of the regulation.