I had heard that they were recently approved in CA, so I went to the ranger station here in Bishop and asked. Of course they didn't know, then a ranger came in and they asked her. She said "no" they are not allowed. So I stated that I read they have been approved and directed to ursack web page. They then got on the phone and asked someone higher up. Hung up the phone and said they ARE legal in CA but not recommended.
Funny I did ask what they recommend, but what was legal!
The wind wont howl if the wind don't break.