American Vanguard Corporation (AMVAC Chemical Corporation have been issued a Stop Sale, Use or Removal Order (SSURO for potential violations of the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA). EPA took enforcement action after EPA laboratory analysis of AMVAC's registered pesticide product, Technical Grade PCNB 95% (EPA Reg. No. 5481-197), revealed the presence of a toxic impurity known to be of toxicological significance. The products involved include AMVAC;s technical grade and manufacturing-use pentachloronitrobenzene (PCNB) products, as well as numberous registered end-use products derived from the technical grade and manufacturing-use PCNB products. EPA has reason to believe AMVAC's PCNB products are in violation of FIFRA and have distributed and sold, and intends to continue distributing and selling these pesticide products in violation of FIFRA. Primary uses are as fungicides with a wide variety of uses to control fungal diseases on vegetable crops (such as beans, cole crops (i.e., cabbage), potatoes, peanuts, flowering bulbs and garlic, as well as products for seed treatment and controlling soil0borne diseases in turf. During the past year, Australia and Canada have taken steps to prohibit the distribution and sale of AMVAC's PCNB products due to these impurities.