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Association of Official Seed Analysts.

The Association of Official Seed Analyst (AOSA) is an organization of member laboratories dedicated to education and research, including state, federal, and university laboratories from the United States and Canada.

AOSA formally organized in Washington D.C. in 1908, developing rules and procedures for seed testing and the standardization of their interpretation (in conjunction with the Federal Seed Act)

Society of Commercial Seed Technologists.

The Society of Commercial Seed Technologists (SCST) is an organization of professional seed technologists dedicated to research, proficiency and improvement in seed testing from private, and company laboratories across the United States and Canada.

SCST originated in 1922, largely as a liaison between The Association of Official Seed Analysts (AOSA) and The American Seed Trade Association (ASTA).

AOSA | SCST

Latest News and Announcements

AOSCA Variety Fluorescence Levels, July 2025

Greetings AOSA & SCST Members, On behalf of the AOSCA Grass Variety Review Board, please see the below memo and…

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All States Noxious-Weed List March 2025 Update, Corrected June Version

Dear Members, State Noxious-weed Seed List has been updated for March 2025 with June 2025 corrections.  As a reminder, this…

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Seed Technologists Newsletter

Volume 92 No. 2 Dear AOSA & SCST Members, The attached is a special edition of the AOSA-SCST Newsletter, devoted…

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2 weeks ago
AOSA and SCST

The USDA’s Seed Regulatory and Testing Division is seeking a detail-oriented professional to join their Science and Technology Program, where you’ll help ensure the integrity of seeds across the nation by conducting tests for purity, germination, and noxious weed examination. Apply today here: bit.ly/3Id76As ... See MoreSee Less

The USDA’s Seed Regulatory and Testing Division is seeking a detail-oriented professional to join their Science and Technology Program, where you’ll help ensure the integrity of seeds across the nation by conducting tests for purity, germination, and noxious weed examination. Apply today here: http://bit.ly/3Id76As
2 weeks ago
AOSA and SCST

The Washington State Department of Agriculture is hiring a Viability Seed Laboratory Supervisor in Yakima! In this key leadership role, you’ll supervise lab operations, mentor staff, ensure testing quality, and shape the future of our state’s seed industry. If you’re experienced in laboratory science and passionate about agriculture, learn more and apply today: agr.wa.gov/about-wsda/employment ... See MoreSee Less

The Washington State Department of Agriculture is hiring a Viability Seed Laboratory Supervisor in Yakima! In this key leadership role, you’ll supervise lab operations, mentor staff, ensure testing quality, and shape the future of our state’s seed industry. If you’re experienced in laboratory science and passionate about agriculture, learn more and apply today: https://agr.wa.gov/about-wsda/employment
4 weeks ago
AOSA and SCST

Happy Labor Day! Today we celebrate the workforce that powers progress across industries and communities. ... See MoreSee Less

Happy Labor Day! Today we celebrate the workforce that powers progress across industries and communities.
1 month ago
AOSA and SCST

The Washington State Department of Agriculture (WSDA) is currently hiring a Viability Seed Laboratory Supervisor in Yakima, WA. This position leads laboratory staff, oversees seed testing and certification, and ensures compliance with national and international standards that protect the state’s seed industry. If you are a seed science professional with lab leadership experience, we encourage you to apply: bit.ly/4fLNQ9w ... See MoreSee Less

The Washington State Department of Agriculture (WSDA) is currently hiring a Viability Seed Laboratory Supervisor in Yakima, WA. This position leads laboratory staff, oversees seed testing and certification, and ensures compliance with national and international standards that protect the state’s seed industry. If you are a seed science professional with lab leadership experience, we encourage you to apply: http://bit.ly/4fLNQ9w
3 months ago
AOSA and SCST

Happy Fourth of July! Celebrating independence, discovery, and a future rooted in seed science and innovation. ... See MoreSee Less

Happy Fourth of July! Celebrating independence, discovery, and a future rooted in seed science and innovation.
3 months ago
AOSA and SCST

Thank you to everyone who joined us in Missoula for the 2025 AOSA/SCST Annual Meeting! It was a great week of connection, collaboration, and conversations that help shape the future of the seed industry. We can't wait to see you in Rochester, NY for 2026! ... See MoreSee Less

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Looking forward to NY. Hated missing this one.

4 months ago
AOSA and SCST

Honoring the heroes who gave their lives in service to our nation. We remember and thank them this Memorial Day! ... See MoreSee Less

Honoring the heroes who gave their lives in service to our nation. We remember and thank them this Memorial Day!
5 months ago
AOSA and SCST

Register now for the 2025 AOSA/SCST Annual Meeting to reserve your spot for an unforgettable afternoon at beautiful Alberton Orchards. Choose from bison and cattle ranch tours, rifle range and target practice, a paintball competition, scooter team races, a 45-minute river float, or lawn games and orchard exploration—or simply unwind and enjoy the scenic views. Learn more here: analyzeseeds.com/2025-annual-meeting-2/ ... See MoreSee Less

Register now for the 2025 AOSA/SCST Annual Meeting to reserve your spot for an unforgettable afternoon at beautiful Alberton Orchards. Choose from bison and cattle ranch tours, rifle range and target practice, a paintball competition, scooter team races, a 45-minute river float, or lawn games and orchard exploration—or simply unwind and enjoy the scenic views. Learn more here: https://analyzeseeds.com/2025-annual-meeting-2/
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AOSA | SCST

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All seed certification activities are administered by individual agencies who are members of AOSCA, the Association of Official Seed Certification Agencies. For more information on the importance of varietal purity, identity and the certification of field crops, turf grasses, vegetables, fruits, vegetatively propagated species, woody plants and forbs.

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