F406-02 ASTM Standard Consumer Safety Specification for Non-Full-Size Baby Cribs/Play Yards, October 2003.
F1292-99 ASTM Standard Specification for Impact Attenuation of Surface Systems Under and Around Playground Equipment, August 10, 1999.
"Selecting Playground Surface Materials: Guidelines for Selecting the Best Surface Material for Your Playground," National Program for Playground Safety, University of Northern Iowa, February 2004.
Air Quality Color Code Chart, Virginia Department of Environmental Quality, April 2004.
8 Va. Admin. Code § DOCUMENTS INCORPORATED BY REFERENCE (8VAC20-780)
Statutory Authority: §§ 22.1-16 and 22.1-289.046 of the Code of Virginia.