As of Fall 2019, new EPA regulations for paraquat went into effect.  The new regulations state that: Only licensed applicators can mix, load, or apply paraquat Applicators must receive EPA training before using Applicators must follow additional label requirements Paraquat dichloride, (sold under the brand names Gramoxone, Firestorm, Parazone, Cyclone, and more), is used as an herbicide and read more EPA Mandated Paraquat Training for Certified Applicators