Washington State Experimental Use Permit Terrestrial Sites

Pesticides shall not be distributed or used for experimental purposes unless a written permit has been obtained from the director. All distribution and use of pesticides for experimental purposes shall be subject to restrictions and conditions described in the experimental use permit. The person applying for a WSEUP must provide the following to WSDA's Pesticide Management Division/Registration Service, at least 24 hours prior to any pesticide use under the permit: 1) time and location of first application, and date, place and method of crop destruction. All treated crops (food or feed) must be destroyed unless EPA has established a tolerance or exempted the use from the requirements of a tolerance. Destroyed means rendered unusable for food or feed or used for research purposes only. The subsequent crop must also be destroyed if there is any possibility that residue could carry over more than 365 days after application. Person and firm applying for this permit accepts all responsibility for the safe use of pesticide(s). Provide the property owner and applicator with Safety Data Sheet (SDS) and labeling. Except as provided in RCW 17.21.203, a Demonstration and Research license is required to use or supervise the use of any experimental or restricted use pesticide when applied on small plots for research purposes.

You apply by completing an application form located here.

There is no fee to apply for a Washington State Experimental Use Permit - terrestrial (WSEUP)

• WSDA requires submission of a signed permit application (AGR 630-4257) with a copy of the Safety Data Sheet and pesticide label or label of the product you intend to use.
• One copy of the Confidential Statement of Formula is also required for WSEUP's involving the application of an unregistered pesticide to a food or feed crop/site.
• WSDA requires submission of a WSEUP application, EPA approval letter, label and EUP Program (Section G of the EPA petition) when a federal EUP is required.

Applications may be reviewed with other agencies or WSDA's Natural Resource Assessment Section (NRAS) prior to issuing a decision.  When appropriate, additional information may be requested.

Your permit application will be reviewed once all the information has been provided. Submit the completed application to WSDA at least 30 days prior to the event. WSDA takes action on terrestrial experimental use permits within 21 days.

The permit is valid from the date of the department's approval through the stated expiration date, generally one year or less.

The requirements for experimental permits are found in the Washington Pesticide Control Act (Chapter 15.58 RCW), and the General Pesticide Rules (WAC 16-228), and Section 5(f) of the Federal Insecticide Fungicide and Rodenticide Act.

Email: pestreg@agr.wa.gov
Phone:  (360) 902-2030