IOA Pan American Group (PAG)
c/o Southern Nevada Water Authority
PO Box 97075
Las Vegas, NV 89193
Tel: (1) 480-529-3787
Fax: (1) 480-522-3080
Email:  info3zone@ioa-pag.org;  support@ioa-pag.org

IOA European-African-Asian-Australian Group (EA3G)
www.ioa-ea3g.org
Phone +33 5 49 454 454 (France)
Fax +33 5 49 454 060
E-mail:   ioa@esip.univ-poitiers.fr

IOA Nippon Island Group (NIG)
www.j-ozone.org
Phone +3 3 583 5210 (Japan)
Fax +3 3 583 1461
E-mail:   joa@mrh.biglobe.ne.jp