Help/Assistance

For assistance information and materials please visit https://agr.wa.gov/services/licenses-permits-and-certificates/summary-descriptions/commercial-fertilizer-registration.

Other sources of help, information, and references:

Helpdesk phone:

(360) 902-2025

Subject matter expert contact information:

Brent Perry (509) 995-2786

bperry@agr.wa.gov

Fertilizer Registration Certificate

Description/Purpose

The purpose is to register fertilizer products for distribution in Washington State.

Triggers and activities which would require this certification

No person may distribute in this state a commercial fertilizer until it has been registered with the Washington State Department of Agriculture (WSDA) by the producer, importer or packager of that product.

An additional registration requirement for waste-derived and micronutrient fertilizers was added to the fertilizer law in 1998. Waste-derived and micronutrient fertilizers must go through a Department of Ecology review before being registered by WSDA.

Explanation/Description of costs/fees, including statutory, regulatory, or other legal authority for fees

The application fee is $150 per product.

Application Information

The application is called 'Application for Registration of Commercial Fertilizer' is online and can be accessed at https://agr.wa.gov/services/licenses-permits-and-certificates/summary-descriptions/commercial-fertilizer-registration.

Yes, submit the following (originals to WSDA and keep copies for your file):

  • Form 4300A "Application for Registration of Commercial Fertilizers"
  • Remittance of $150.00 per product
  • Form 4300B "Commercial Fertilizer Product Registration"
  • Copies of laboratory analyses of the nine heavy metals for each product Market label
  • Ecology Questionnaire and related information for waste-derived and micronutrient fertilizers.

You can find these documents at: https://agr.wa.gov/services/licenses-permits-and-certificates/summary-descriptions/commercial-fertilizer-registration

Yes. There are additional documents required. See https://agr.wa.gov/services/licenses-permits-and-certificates/summary-descriptions/commercial-fertilizer-registration.

If your fertilizer is “waste-derived” or a “micronutrient fertilizer” the Department of Ecology may require further testing of your product.

Washington State Department of Agriculture
Pesticide Management Division
PO Box 42591
Olympia, WA 98504-2591

Registrations are issued by the department for a 2-year period beginning on July 1 of a given year and ending 24 months later on June 30, except that registrations issued to a registrant who applies to register an additional product during the last 12 months of the registrant's period expire on the next June 30.

Any registration approved by the director and in effect on the last day of the registration period, for which a renewal application has been made and the proper fee paid, continues in full force and effect until the director notifies the applicant that the registration has been renewed, or otherwise denied in accordance with the provisions of Chapter 15.54 RCW.

Upon notice by the Department to deny or revoke registration, a person may request a hearing under Chapter 34.05 RCW, the Administrative Procedures Act.

Legal authority
Notes / Comments

If you do not have access to the Internet, you may receive application information by contacting WSDA at (360) 902-2025 or Fertreg@agr.wa.gov.

Contacts
Washington State Department of Agriculture
Registration Services
1111 Washington Street SE, NRB - 2nd Fl
PO Box 42589
Olympia WA 98504-2589
Email: license@agr.wa.gov
Website: https://agr.wa.gov/departments/pesticides-and-fertilizers
Fax: (360) 902-2093
Toll Free: 1-877-301-4555
* Credential details last updated 5/28/2025
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