A state rule or regulation mandating any county or city to engage in any new activity, to provide any new service or to increase any current level of activity or to provide any service beyond that required by existing law, shall not have the force of law, unless, or until, the state provides sufficient new funding or a means of new funding to the county or city to pay the cost of performing the mandated activity or service for the period of time during which the activity or service is required to be performed. (As added November 6, 1984.)