SB 645 amends Section 37.0832(a) of the Texas Education Code to explicitly include antisemitism in the definition of bullying for purposes of school discipline policies. The bill defines "antisemitism" as conduct based on negative perceptions of Jews, expressed as hatred or discriminatory acts toward Jewish individuals, their property, community institutions, or religious facilities. The definition aligns with the International Holocaust Remembrance Alliance’s "Working Definition of Antisemitism." This addition requires that bullying policies address antisemitism alongside other forms of bullying, applying to the 2025-2026 school year onward, with an immediate effective date upon achieving the required votes​.