California’s Supreme Court has approved a new rule of professional conduct clarifying that attorneys may advise cannabis clients on complying with state laws, even those that conflict with a federal ban on marijuana.

Still, the revamped Rule 1.2.1 of the Rules of Professional Conduct warns attorneys not to aid a client in breaking the law, and it does not specifically mention marijuana. It does, however, in a section known as Paragraph (b), allow attorneys to “discuss the legal consequences of any proposed course of conduct.”