PUBLIC PLAYGROUND SAFETY HANDBOOK, by the US Consumer Product Safety Commission To view this document in it's entirety, please click here: http://www.cpsc.gov/cpscpub/pubs/325.pdf
OUTDOOR HOME PLAYGROUND SAFETY HANDBOOK by the US Consumer Product Safety Commission To view this document in its entirety, please click here: http://www.cpsc.gov/CPSCPUB/PUBS/324.pdf