A proposed professional conduct rule that could subject attorneys to disciplinary action for behavior deemed harassment or discrimination has been hotly debated by Arizona’s legal community, in what could be a harbinger for similar debates around the country.

A model anti-discrimination rule was put forth by the American Bar Association in 2016—long before the #MeToo movement raised awareness of sexual discrimination and harassment issues. And while some states have already considered adoption of the rule—with many rejecting it—others have yet to decide.