Concerned over the current lack of guidance for access and functional needs considerations associated with an active shooter attack, the California Office of Emergency Services (Cal OES) brought together a group of representatives from law enforcement, the California State Council on Developmental Disabilities, emergency managers, the California Specialized Training Institute, and other disability stakeholders to update its Active Shooter Awareness Guidance.
http://www.caloes.ca.gov/AccessFunctionalNeedsSite/Documents/Cal OES – Active Shooter Awareness Guidance (2016 update).pdf