AOSCA seed certification provides growers with third-party verification that a seed is a genetically pure variety professionally produced to give the highest quality seed possible and will perform as labeled. States have a Seed Growers or Crop Improvement Association that collaborates with the state department of agriculture or the agriculture university to test and validate that THC is stable and below 0.3% and the seed is inspected and certified according to AOSCA standards. These are two separate processes. Just because a seed demonstrates THC compliance does NOT mean it is also certified seed, or vice versa. Be sure to look for both the 3rd party validation of THC and Certified Seed Tags.
Currently, New West Genetics offers ABOUND®, a family of dioecious grain varieties certified and validated as having compliant, stable THC levels by multiple state Departments of Agriculture. See variety descriptions here.