This bill amends Washington law chapter 28A.642 RCW by adding a new definitions section and revising RCW 28A.642.010 to prohibit discrimination in Washington public schools on an expanded list of bases, including race, ethnicity, creed, religion, color, national origin, veteran or military status, sexual orientation, gender expression, gender identity, homelessness, immigration or citizenship status, sensory, mental, or physical disability, neurodivergence, and the use of a trained dog guide or service animal. It also states that definitions in chapter 49.60 RCW apply throughout chapter 28A.642 RCW except where the new section provides different definitions. The new section defines terms used in the chapter, including ethnicity, gender expression, gender identity, homelessness (referencing the federal McKinney‑Vento Act), immigration or citizenship status (referencing RCW 43.17.420), neurodivergence, and sexual orientation. The change is a statutory amendment expanding nondiscrimination protections and adding specific definitions; it is not presented as creating a new crime, changing criminal penalties, or specifying new enforcement procedures in the provided text. Affected entities expressly include Washington public schools and the student populations named in the amendment. The extracted text does not include an effective date, implementation timeline, enforcement mechanisms, remedies, or penalties, and it is unclear how this amendment interacts with other provisions of chapter 28A.642 RCW beyond the added definitions and amended section.

If enacted, Washington public schools would need to treat a wider set of student characteristics as protected from discrimination, which in practice means districts and school staff will likely have to revise handbooks, anti-bullying and nondiscrimination policies, enrollment and access practices, and staff training to avoid unequal treatment of students who are LGBTQ, neurodivergent, homeless, using service animals, have sensory/mental/physical disabilities, or are affected by immigration or citizenship status. The most directly affected are those students and the school employees and administrators responsible for daily operations; they will face new responsibilities to prevent exclusion or differential treatment and to apply the new definitions when making decisions about discipline, services, and access. These changes will probably create modest to significant administrative costs for districts (policy updates, communication, and training) and raise the risk of complaints or legal challenges if schools fail to comply. Important implementation details are missing from the provided text — there is no effective date, enforcement process, required remedies, or funding source included here — so it is unclear how quickly schools must change practices or whether the state will provide resources to cover the added work.