The Partner Alliance for Safer Schools (PASS) has released the fourth edition of its Safety and Security Guidelines for K-12 Schools, which provides school administrators, school boards and public safety and security professionals with guidelines for implementing a layered and tiered approach to securing and enhancing the safety of school environments. The fourth edition is completely revised under a simplified structure and expanded to cover best practices on a district-wide level that relate to safety and security and additional areas. The new guidelines are available on the newly-redesigned PASS website at www.passk12.org.