AABGA - American Association of Botanical Garden and Arboreta - www.aabga.org

 AAFC - Agriculture & Agri-Food Canada - www.agr.ca

 ABSA - American Biological Safety Association - www.absa.org

 AERGC - Association of Education and Research Greenhouse Curators - www.life.uiuc.edu/aergc

 AHS - American Horticultural Society - www.ahs.org

 AIA - American Institute of Architects - www.aia.org

 ANLA - American Nursery & Landscape Association - www.anla.org

 APHIS - Animal and Plant Health Inspection Service - www.aphis.usda.gov

 ARS - Agricultural Research Service - www.ars.usda.gov

 ASAE - American Society of Agricultural Engineers - www.asae.org

 ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers - www.ashrae.org

 ASHS - American Society for Horticultural Science - www.ashs.org

 ASLA - American Society of Landscape Architects - www.asla.org

 ASPB - American Society of Plants biologists - www.aspb.org

 CHABSA - Chesapeake Area Biological Safety Association - www.chabsa.org

 ENTSOC - Entomological Society of America - www.entsoc.org

 ESA - The Ecological - www.esa.org

 ISHS - International Society for Horticultural Science - www.ishs.org

 NCERA-101 - USDA's North Central Region - www.ncr101.montana.edu

 NGMA - National Greenhouse Manufacturers Association - www.ngma.com

 PWGSC - Public Works & Government Services Canada - www.pwgsc.gc.ca

 USDA - United States Department of Agriculture - www.usda.gov