Illegal to carry in California, period! Please don't let someone convince you otherwise. I'm not a lawyer, police officer and by no means an expert on the many laws of California but of this one I'm "pretty" darn sure. Illegal to ship into the United States ( see Cold Steel's website on this ). I have one of the original Balisongs produced by Benchmade when they weren't Benchmade, when they were still in So Cal making knives by hand. Haven't carried the beauty for over 15 years. Sits in my tool box where I pull it out now and then to admire the craftsmanship. Darn shame, they are great knives but not worth the felony you can get for carrying one. Benchmade will not even ship to California. Not sure if Cold Steel will or not. Don't let that keep you from buying one! You can own one and you can do what you want ( within reason ) with it in your own home! They haven't figured out a way to stop us from doing what we want in the privacy of our homes, yet. Bottom line is that they are a great addition to a collection. Do some research and I'm sure you'll find a way of getting one without having to leave the state to get it.
Good luck and best regards....
"I'd rather run with the wolves then be herded with the sheep"