(1) The nursing home must ensure each resident care unit has at least the following required service areas:

(a) A staff work station;

(b) A medicine storage and preparation area;

(c) A utility room that maintains separated clean and soiled functions;

(d) Storage space for linen, other supplies, and equipment; and

(e) Housekeeping services and janitor's closet.

(2) In new construction resident care units may share required services if the units are in close proximity to each other and the combined units serve a total of not more than sixty residents; except the nursing home must have a separate staff work station on a secured dementia care unit.