Health & Saf. Code, § 13131

“Nonambulatory persons” means persons unable to leave a building unassisted under emergency conditions. It includes any person who is unable, or likely to be unable, to physically and mentally respond to a sensory signal approved by the State Fire Marshal, or an oral instruction relating to fire danger, and persons who depend upon mechanical aids such as crutches, walkers, and wheelchairs. The determination of ambulatory or nonambulatory status of persons with developmental disabilities shall be made by the Director of Social Services or his or her designated representative, in consultation with the Director of Developmental Services or his or her designated representative. The determination of ambulatory or nonambulatory status of all other disabled persons placed after January 1, 1984, who are not developmentally disabled shall be made by the Director of Social Services, or his or her designated representative.