The proposed bill seeks to prohibit health care providers in Washington from administering puberty-blocking medications, cross-sex hormones, and gender transition surgeries to minors for the purpose of altering their gender or sex perception. Specifically, the bill outlines that providers cannot prescribe or administer certain drugs that suppress puberty, hormones in excess of normal levels for the minor's age and sex, or perform surgeries that sterilize or create genitalia inconsistent with the minor's biological sex. The bill includes a new section to chapter 18.130 RCW, detailing these prohibitions and defining key terms such as "gender," "minor," and "sex."

However, the bill does allow for certain exceptions where these practices may be permitted. These exceptions include treatments for minors with medically verifiable disorders of sex development, tapering off puberty blockers, treating complications from prior gender transition procedures, and surgeries necessary to address imminent health risks. The legislation aims to establish clear boundaries around gender transition practices for minors while providing specific circumstances under which certain medical interventions may still be applicable.