Definition. “Unit of service” means one or more physical adaptations to a participant's home or place of residence which is completed as one job by a qualified provider and which constitute a single accessibility adaptation. If the owner of the home is the participant, environmental accessibility adaptations may be made only if approved by the participant, in the participant's plan of service. If the owner is not the participant, environmental accessibility adaptations may be made only if approved by the owner of the home, who agrees that the participant will be allowed to remain in the residence for at least 1 year, and if approved by the participant, in the participant’s plan of service. Environmental accessibility adaptations shall include those physical adaptations or modifications to the participant's home which are required to make it accessible to the participant because of the: Physical structure of the residence; or Participant's specific functional needs. Environmental accessibility adaptations may include but are not limited to: Visual fire alarms; Telecommunication type machines (TTYs); Ramps; Grab bars or handrails; Stair glides; Widening of doorways; Modification of bathroom or kitchen facilities to make them physically accessible; Specialized electrical and plumbing systems to accommodate the medical equipment and supplies which are necessary for the participant's welfare; Locks, buzzers, or other devices on doorways to prevent or stop wandering; and Home modifications to help a participant identify the physical environment. To be reimbursed, all services shall: Be provided in accordance with applicable State and local building codes; and Pass required inspections.