Serving Montana Agriculture and growing prosperity under the Big Sky

Pesticide Programs


The way tests are proctored and where the exams are given has changed to minimize the risk of exposure.  Please contact your local MDA Field Office to schedule an exam using the following website: ASB-Field-Offices

Department Responsibilities

The Montana Department of Agriculture has the responsibility to ensure that pesticides are available for use and do not pose an unreasonable adverse effect on human health or the environment.

The department's Agricultural Services Bureau works to this end by:

What is NEW?

House Bill 126 Increases Fees for Pesticide Program Licenses and Products:

Refer to current fee information on the Pesticide License and Pesticide Product Registration pages.

Online Payments are now available for:
  • Pesticide Licenses
  • Adding Operators
  • License Renewal Late Fees
  • Training Manuals/ Study Materials
  • Pesticide Training Courses
  • Pesticide Product Registrations

Refer to the Pay Online page for instructions.

Using Restricted Use Pesticides in Indian Country:

Pesticide applicators wanting to apply restricted use pesticides in Indian country within Montana’s borders must obtain an EPA federal pesticide certification. Submit a complete federal certification application form and a photocopy of both sides of your current and valid State of Montana pesticide license to the EPA regional office at:

US EPA, Region 8
Attn: Region 8 Certification
1595 Wynkoop St, 8P-P3T
Denver, CO 80202

The application form and instructions can be downloaded at the EPA website.

Bed Bug Information:

Check out EPA's Bed Bug Information Clearinghouse. This website has information for pest control operators, schools, hotels, landlords, health care facilities, and many other audiences. The Centers for Disease Control and EPA have determined that bed bugs are a pest of significant public health importance. Read more in the link to better understand risks associated with bed bugs and how government agencies are working together to provide support and resources to those affected.


Montana Vertebrate Pest Program Seeks Study Sites for Ground Squirrel Research

The Montana Department of Agriculture’s Vertebrate Pest Program is looking for multiple state study sites with a known abundance of Richardson’s and/or Columbian ground squirrels to evaluate the efficacy of a diphacinone-based rodenticide.

Research locations will participate on a voluntary basis and should be at least 20 acres in size. Sites within 50 miles of Bozeman and/or Lewistown are of particular interest. To learn more, contact Stephen M. Vantassel, Vertebrate Pest Specialist, at 406-538-3004 or

Manage ground squirrels and other field rodent pests. Check out our bulletins or contact our vertebrate pest specialist to make sure you are doing it right!

ASD Field Offices tile - Map of Montana