The use of paraquat is restricted to certified pesticide applicators only. Noncertified applicators working under the direct supervision of a certified applicator are prohibited from mixing, loading, and using paraquat. Paraquat‐specific training is required by new paraquat labels and must be completed prior to using products with the new labeling. The training provides important information about paraquat’s toxicity, new label requirements and restrictions, and the consequences of misuse. For access to the online training please visit, which is also the web address printed on all paraquat labels. For in-person training material please visit, The training must be taken every 3 years. Once the certified applicator successfully completes the training, a certificate will be automatically generated. Per the new labeling, applicators are required to retain certificates of training completion. For more information please visit,

Effective December 31, 2020, new regulations mandate that any paraquat products under 120 gallons distributed or sold by paraquat registrants require a closed system and do not allow jar testing. However, dealers and distributors are permitted to continue to sell paraquat products that do not meet the closed-system requirement until their stocks run out, and pesticide applicators may continue to use existing stocks according to the directions on the label of the product in their possession.