This bill mandates the inclusion of Asian American, Native Hawaiian/Pacific Islander, Latino American, and Black American history in the social studies curriculum of Washington public schools. It establishes a timeline for implementation, requiring school districts to adopt policies by September 1, 2028, ensuring that these histories are integrated into required social studies courses during their regular curriculum review cycles. The policies must align with revised social studies learning standards and be publicly posted on district websites within 30 days of approval. Starting in the 2029-30 school year, instruction consistent with these policies will be required for grades K-12, utilizing available ethnic studies materials and resources.

Additionally, the bill emphasizes the importance of teaching these histories as a means to combat hate and discrimination, promote cross-cultural understanding, and prepare students for participation in a diverse democracy. It also allows school districts to accept donations related to this instruction and mandates annual reporting to state education authorities to ensure compliance with the new requirements. Importantly, the bill clarifies that it does not supersede existing curricula, such as the John McCoy (lulila) curriculum, and is intended to supplement current ethnic studies resources.