License Minnesota

Chemigation Permit and Chemigation Substantial Alteration Permit

Chemigation is injecting a chemical into irrigation water and applying the chemical through the system to the crop or field.

Agency contact information:

Agriculture (MDA), Minnesota Department of
625 N. Robert Street
St. Paul, MN 55155
(651) 201-6000 | (800) 967-2474 | (800) 627-3529 (TTY)
Pesticide and Fertilizer Management Division
Facility Management Unit
Jim Freiling, Chemigation Consultant (320) 273-7382
Contact Info: Jane Boerboom, Supervisor
(651) 201-6240


Minnesota Department of Agriculture

Chemigation Permit Program

License Information System (LIS) Lookup a License

Online Licensing & Payment Options

The mission of the Minnesota Department of Agriculture (MDA) is to enhance Minnesotans' quality of life by ensuring the integrity of our food supply, the health of our environment, and the strength of our agricultural economy.


Minn. Stats. 18B.08


MINNESOTA RULES 1505. 2100 - 1505. 2800


Chemigation Application Record - Approved

Chemigation Permit Application - AG-01073

Chemigation Permit Application, Substantial Alteration - AG-01208

Application forms are available from the MN Dept. of Agriculture website, Chemigation Permit Program section.


Applicants must supply information described in Minn. Rules 1505.2200, Subpart 4 or otherwise required by the commissioner.

Compliance with anti-pollution requirements including, but not limited to main line back-flow prevention is required.

If any substantial changes are proposed for an existing permitted chemigation system, a Substantial Alteration Chemigation Permit is required prior to making those changes.

Refer also to the MDA Fertilizer Licensing FAQs.


Chemigation permit application fee for fertilizers is $50 and and for chemigation pesticides is $250 (not refundable) for the initial permit.

No additional fee is required for revising/renewing an existing chemigation permit or for a new substantial alteration permit.

Period of Issuance:

A chemigation permit is effective continuously from date of initial application unless superseded by a substantial alteration or a revised chemigation permit. Substantial alteration permits are valid only for the substantial alteration(s) described in the substantial alteration permit application and are effective from date of issue until superseded by a revised chemigation permit or subsequent alteration permit.

Length of Determination Process:

An applicant is considered to be permitted-by-rule for the chemigation system if applicant complies with anti-pollution regulations. Permits approval may take up to 30 days or longer.

Other Pertinent Information:

On-site inspection by MN Department of Agriculture staff may be done to check compliance.

See Minn. Stats. §§ 18B.08 (pesticide) and 18C.205 (fertilizer).