The AOSA Rules for Testing Seeds is a set of dynamic, continually-evolving documents designed to reflect current research in seed testing. There are four publications that comprise the 2021 AOSA Rules for Testing Seeds:

AOSA Rules for Testing Seeds Volume 1. Principles and Procedures
AOSA Rules for Testing Seeds Volume 2. Uniform Blowing Procedure
AOSA Rules for Testing Seeds Volume 3. Uniform Classification of Weed and Crop Seeds
AOSA Rules for Testing Seeds Volume 4. Seedling Evaluation

Included with the CD or electronic file is one set (four) of license stickers to print a copy of each volume of the 2021 AOSA Rules for Testing Seeds. The print license is included with the purchase of the CD or electronic file, if you wish to print additional copies you will need to purchase additional licenses from the AOSA Office. Each volume printed from the CD or electronic file should have affixed to it the respective license sticker.

The 2021 Rules are effective on October 1, 2021.
Maintaining a current set of the AOSA Rules for Testing Seeds is the analyst’s responsibility.