The nursing home must provide the dementia care unit with:

(1) Secured outdoor space and walkways;

(2) An ambulation area with accessible walking surfaces that:

(a) Are firm, stable, and free from cracks and abrupt changes with a maximum of one inch between sidewalk and adjoining landscape areas;

(b) Have slip-resistant surfaces if subject to wet conditions; and

(c) Sufficient space and outdoor furniture with flexibility in arrangement of the furniture to accommodate residents who use wheelchairs and mobility aids.

(3) Nontoxic outdoor plants in areas accessible to residents.

(4) In new construction the outdoor areas must also meet the requirements of WAC 388-97-3740.