Western-European Institute for Wood Preservation (WEI)
www.wei-ieo.org
euro.wood.fed@skynet.be

American Wood Preservers' Association (AWPA)
www.awpa.com
awpa@itexas.net

British Wood Preserving and Damp-proofing Association (BWPDA)
www.bwpda.co.uk
crc@bwpda.co.uk