The Tennessee Crop Improvement Association is an incorporated, non-profit organization of seed growers and turfgrass producers. State legislation designates the Association as the official seed-certifying agency in Tennessee. Requirements for certification of seeds conform to the Federal Seed Certification Regulations and the Association of Official Seed Certifying Agencies. The Association works in cooperation with seed growers, seedsmen, sod growers, the State Department of Agriculture, University of Tennessee Institute of Agriculture, Agricultural Extension Service, and Agricultural Experiment Stations.