The Seed-to-Sale Tracking System is a comprehensive means of tracking cannabis cultivation, processing, and sales, including any waste that may occur as a result of business. In Oklahoma (and other states where marijuana is legal, like Massachusetts), commercial growers use a program called Metrc to inventory their cannabis plants using radio frequencies and serialized labels. Like it sounds, this program is designed to track all marijuana activity, from the plants’ beginning as a seed to the sale of the final product.