REFERENCES
- American National Standards Institute . 1998 . Accessible and usable buildings and facilities (ICC/ANSI A117.1) , Falls Church, VA : International Code Council .
- American Society of Mechanical Engineers . 2007 . National standard safety code for elevators and escalators (A17.1) , New York : Author .
- American Society of Mechanical Engineers . 2008 . Safety standard for platform lifts and stairway chairlifts (A18.1) , New York : Author .
- Canadian Standards Association . 2000 . The Canadian national safety code for elevators and escalators , Toronto : CSA International .