Qualified Products List and general retardant information: http://www.fs.fed.us/rm/fire
Toxicity: http://www.fs.fed.us/fire/tools_tech/misc/HHRA-Public.pdf http://www.cerc.usgs.gov/pubs/pubs.htm#fire http://www.cerc.usgs.gov/FRS_Webs/Yankton/fire.htm
LAQA Guide: http://www.nwcg.gov/pms/pubs/pubs.htm
