A High Reliability school is constantly monitoring its effectiveness and immediately adjusts where necessary to increase student achievement.  A Handbook for High Reliability Schools  (HRS) by Robert J Marzano, Phil Warrick and Julia Simms describes the five levels of operation for a High Reliability School.  

• Level 1: Safe and Collaborative Culture
• Level 2: Effective Teaching in Every Classroom
• Level 3: Guaranteed and Viable Curriculum
• Level 4: Standards-Referenced Reporting
• Level 5: Comptency-Based Education