Hi Joanne!
Great question! As you said, Cali has no board for ATs. therefore, no one governs them. They need to look to the BOC for practice guidelines and rules/ regulations. The BOC never trumps state law, rules or regulations, but in their absence, they need to be used for guidance for practice.
The BOC allows dry needling if the MD has given approval for supervision and the AT has taken continuing education (which is not defined).
Please see the BOC Dry Needling Fact Sheet for more information!
Hope that helps!
Sue