. >> i'm bryan holaday. maria is in chinatown to explain. >>reporter: a loophole made it okay to buy and sell old ivory but that's about to change. san francisco is the second largest market in the u.s. for ivory trip kepts. >> it's way too much poaching going on and got to take care of. >>reporter: governor jerry brown signed a law that will dramatically impact many stores in san francisco's chinatown. >> where is that ivory from? >>reporter: a about kpix5 news investigation found they were selling ivory illegally. >> is that mammoth. >> no this is ivory. >> oh, really. >>reporter: that loop home is now gone with the new state law that goes into effect july 1st making it illegal to buy or sell elephant and rhinos russ tusks no matter how old it is. >> it's very valuable. >>reporter: alice supports the new law but many elderly chinese including her parents see ivory as a status symbol. >> it comes from kingdom. it means power. i think these days are different and you know, you're in the u.s. >>reporter: the owner of this store cold can about