Lesbian, gay, bisexual, and transgender (LGBT) rights in the U.S. state of Washington have evolved significantly since the late 20th century. Same-sex sexual activity was legalized in 1976. LGBT people are fully protected from discrimination in the areas of employment, housing and public accommodations; the state enacting comprehensive anti-discrimination legislation regarding sexual orientation and gender identity in 2006. Same-sex marriage has been legal since 2012, and same-sex couples are allowed to adopt. Conversion therapy on minors has also been illegal since 2018.