Pesticide Use Enforcement

Announcement

RE: Chlorpyrifos becomes a California Restricted Material effective July 1, 2015.

Due to potential human health and surface water concerns, pesticides containing the active ingredient chlorpyrifos that are labeled for the production of an agricultural commodity will be designated as a California Restricted Material by regulation (CCR 6400 (e)) effective July 1, 2015.  Chlorpyrifos is sold under the following brand names: Lorsban, Duragaurd, Eraser, Govern, Lock-on, Nufos, Vulcan, and Warhawk to name a few.  This means in order to possess, purchase or use these chlorpyrifos products after July 1, 2015, growers must obtain a Restricted Materials Permit (or supplement) from the Kings County Department of Agriculture and Measurement Standards which specifically lists chlorpyrifos on all crop sites where it will be used.    In order to add chlorpyrifos to an existing permit, the permittee must submit a signed supplement adding chlorpyrifos to all crop sites where it will be used.  Growers with only an existing operator identification number must come to the office in person to convert their operator identification number into a restricted materials permit.  As with all restricted materials, chlorpyrifos can only be used by a certified applicator or someone under their direct supervision.  Therefore, restricted material permits will only be issued to certified applicators (Private Applicator Certificate, Qualified Applicator Certificate or Qualified Applicator License holders) or the permit will be conditioned that all restricted materials be applied by a licensed pest control business. 

California Department of Pesticide Regulation is developing permit conditions for chlorpyrifos products to mitigate human health and environmental risks identified by DPR and U.S. EPA. 

In order for a licensed pest control dealer to sell these chlorpyrifos products after July 1, 2015, they must obtain a copy of the grower’s permit listing chlorpyrifos on it.  Pest control businesses wishing to apply these chlorpyrifos products after July 1, 2015 must obtain a copy of the grower’s permit listing chlorpyrifos on the crop sites they intend to treat and obtain a pest control recommendation for the application.  

Note:  Some chlorpyrifos products may also be subject to Volatile Organic Compound (VOC) regulations (CCR 6558, 6577, 6880, 6881, 6883, 6884, and 6886).  See the Department of Pesticide Regulation’s “Reducing Smog-Producing Emissions from Nonfumigant Pesticide Products” fact sheet for more information on VOC regulations. 

Feel free to contact the Pesticide Use Enforcement Division of the Kings County Department of Agriculture and Measurement Standards if you have any questions.   559-852-2830