Glossary
Secured perimeter
Also called: Delayed egress, Secured unit
A secured perimeter is a memory care design in which exits are locked or alarmed so residents with dementia can move freely inside without wandering out.
In California an RCFE must have state approval before using secured perimeters or delayed-egress doors, and must meet staffing and fire-safety conditions to keep it. Ask to see the approval.
Related terms
Memory care
Memory care is assisted living designed for people living with Alzheimer’s disease or another dementia, in a secured setting with dementia-trained staff and a structured daily routine.
Wandering
Wandering, or elopement when the person leaves the building, is the tendency of some people with dementia to walk off without awareness of danger, and it is the main safety reason families choose a secured memory care setting.
Definitions reviewed September 5, 2026. Rules vary by state and change over time; confirm specifics with the community and the licensing agency.