Seed standards

Standards for Each Class Factor Foundation Registered Certified Pure seed (minimum) 98.0 percent 98.0 percent 98.0 percent Total weed seeds (maximum) 0.10 percent 0.10 percent 0.10 percent Other varieties 0.005 percent 0.01 percent 0.05 percent Other crop seeds (maximum) 0.01 percent 0.03 percent 0.08 percent Inert matter (maximum) * 2.0 percent 2.0 percent 2.0 percent Prohibited noxious weed seeds none none none Other kinds ** 0.10 percent 0.03 percent 0.07 percent Germination 80.0 percent 80.0 percent 80.0 percent *Inert matter may not include more than 0.5 percent of material other than seed fragments of the variety under consideration. **Other kinds may not exceed 2 per pound for foundation, 6 for registered, and 10 for certified.