(800)-Tell-TDA
835-5832
Seed Testing Resources

Association of Official Seed Analysts, Inc. (AOSA, Inc.)
(607) 256-3313
www.aosaseed.com 

Society of Commercial Seed Technologists (SCST)
(607) 256-3313
www.seedtechnology.net 

Texas Seed Trade Association (TSTA)
(512) 944-5052  
www.texasseedtrade.com