Provides that, by September 1, 2011, each school district must enact an antigang policy or modify an existing policy toprohibit criminal street gang and hate group activity on school property and school vehicles, and at all school activities. (See also SB 6511).   Official Text and Analysis.

Includes "hate groups" within the definition of "criminal street gang" to the extent that such groups otherwise satisfy the definition. The substitute requires consistency with other discipline and rules for the authority to expel or suspend for gang activity. It also requires school district policies with respect to criminal street gangs and gang activity to include, within an outline of progressive discipline, an initial warning and opportunity to correct.