Definitions

Clear & Sanitized Area
An assembly space, such as the gymnasium, that is used to shelter students, faculty and staff after it has been thoroughly searched by school volunteers and law enforcement for suspicious packages and objects.

Emergency Response Team
Designation of an emergency response team comprised of school personnel, local law enforcement officials and representatives from local, regional and/or state emergency response agencies, other appropriate incident response teams and a post-incident response team that includes appropriate school personnel , medical personnel, mental health counselors and others who can assist the school community in coping with the aftermath of a violent incident.

Incident Command System
The Incident Command System, also known a ICS, is defined as a standardized on-scene emergency management system that allows multi-agencies to work together without any jurisdictional boundary problems.  ICS defines the chain of command as a series of management positions in order of authority.  Individuals in the chain of command are from different agencies and positions.

School Safety Plan
All emergency response plans developed by building-level school safety teams must include the following elements:  policies and procedures for the safe evacuation of students, teachers, other school personnel as well as visitors to the school in the event of a serious violent incident or other emergency, which shall include evacuation routes and shelter sites and procedures for addressing medical needs, transportation and emergency notification to persons in parental relation to a student.

Shelter in Place
A procedure whereby the entire school population is moved to a single or multiple locations inside the building that has been clear and sanitized. 

Evacuation
All staff and students are evacuated from the building.

Lockout
Allows no unauthorized personnel into the building.  All exterior doors are locked and main entrance is monitored by administrators, security or school resource officer.  This procedure allows the school to continue with the normal school day, but curtails outside activity.  Most commonly used when incident is occurring outside school building, on or off school property.

Lockdown
A procedure used to secure the building and grounds usually when there is an immediate and imminent threat to the school building population.  School staff and students are secured in the rooms they are currently in and no one is allowed to leave until the situation has bee curtailed.  This allows the school to secure the students and staff in a place and remove any innocent bystanders from immediate danger.  Most commonly used when building has an intruder.