The CHABA legislation defines products that have less than .03% THC as not being marijuana, even though the products have therapeutic amounts of THC. This action effectively removes CHABAs from the Washington Controlled Substances Act allowing them to be sold and used just about anywhere health conscious consumers shop. For legal references you can look at the Washington State RCW: RCW 69.50.575 or the Washington State  FAQ page for massage therapists. .