NRPA – National Recreation and Park Association
CPRA – Canadian Parks and Recreation Association
NPCAI – National Playground Contractors Association, Inc.
NPPS – National Program for Playground Safety
US Play Coalition
Dr. Joe Frost Library – University of the Incarnate Word
ASTM International Standards Worldwide
Canadian Standards Association
Consumer Product Safety Commission
Canadian Playground Safety Institute
National Institute for Play
Playground Maintenance Technicians
Certified Playground Safety Inspector
The Access Board
Americans with Disabilities Act (ADA) Accessibility Guidelines for Buildings and Facilities; Play Areas
