Federal regulation 42 CFR §483.25 (h) establishes a duty for the nursing home to that the resident receives adequate supervision and assistive devices to prevent accidents, including third degree burns.
42 CFR §483.25 (h) Accidents. The facility must ensure that—
(1) The resident environment remains as free of accident hazards [including third degree burns] as is possible; and
(2) Each resident receives adequate supervision and assistance devices to prevent accidents.