Washington Revised Code Title 69. Food, Drugs, Cosmetics, and Poisons § 69.51A.120. Parental rights or residential time--Not to be restricted

A qualifying patient or designated provider may not have his or her parental rights or residential time with a child restricted solely due to his or her medical use of cannabis in compliance with the terms of this chapter absent written findings supported by evidence that such use has resulted in a long-term impairment that interferes with the performance of parenting functions as defined under RCW 26.09.004.