Pesticide Applicator Licensing
What Type of License do I need?
- If you are seeking a license for your business, click here.
- If you need information about training technicians, click here.
- If you already hold a license in Colorado and need information about recertification, click here.
- If you are an individual, follow the decision tree below to learn which license is right for your situation. Click on your choice to find more information. For a description of each commercial, limited commercial, and public applicator category, click here.
★ This map was created with the information found in the Department of Agriculture's Licensing and Examination Guide" (PDF).
Agricultural Insect Control (101)
The application of pesticides to agricultural plants, including applications performed on pastures, croplands and non-crop agricultural lands, to control invertebrate pests, including insects, mites, slugs, snails, and nematodes.
Agricultural Plant Disease Control (102)
The application of pesticides to agricultural plants, including applications performed on pastures, croplands and non-crop agricultural lands, to control plant diseases.
Agricultural Weed Control (103)
The application of pesticides to agricultural plants, including pastures, croplands, and non-crop agricultural lands, to control weeds.
Seed Treatment (104)
The application of pesticides to seeds.
Livestock Pest Control (105)
The application of pesticides to livestock.
Forest Pest Control (106)
The application of pesticides in forests, forest nurseries, forest seed producing areas, windbreaks and downed timber. If applications come within 50 feet of a residential or commercial structure, the applicator must also hold the ornamental pest control license.
Rangeland Pest Control (107)
Application of pesticides to rangeland, defined as those lands on which the vegetation is primarily grasses, grass-like plants, forbs, or shrubs suitable for grazing or browsing by large herbivores.
Aquatic Pest Control (108)
The application of pesticides to standing or running water when made to control aquatic weeds, amphibians, fish and other pests in water, except for pesticide applications which are included in the Public Health Category 110.
Industrial and Right-of-Way Weed Control (109)
Application of pesticides to maintain public and private roads, electrical power lines, railway rights of way, construction and maintenance of parking lots, drilling rigs, substations, or similar areas.
Public Health Pest Control (110)
The application of pesticides for control of disease vectors, except vertebrates.
Research and Demonstration (111)
Application of pesticides in the course of conducting field research or demonstration. No license or certification will be issued in this category unless the applicant also obtains licensing or certification, in the specific category listed in the Rules, which is appropriate to the research activity.
Metam Sodium for Sewer Root Control (113)
The application of metam sodium in sewers to control roots. Sewers are defined as any artificial conduit for the transmission of wastewater to a wastewater treatment plant.
Turf Pest Control (206)
Application of pesticides to 1) turf to control invertebrate pests, including insects, mites, slugs, snails, and nematodes, or to control plant diseases or weeds; or 2) ornamental beds to control weeds.
Ornamental Pest Control (207)
Application of pesticides to ornamental trees, shrubs, beds, flowers and other ornamental plants, except turf or indoor ornamental plants, to control invertebrate pests, including insects, mites, slugs, snails and nematodes, or to control plant diseases.
Wood Destroying Organism Pest Control (301)
Application of pesticides to control termites, carpenter ants, powder post beetles, fungi, and/or other wood destroying organisms in structures and/or adjacent outside areas.
Outdoor Vertebrate Pest Control (302)
Application of pesticides or bait stations intended for preventing, destroying, repelling or mitigating any amphibian, reptile, bird, fish, feral dogs and cats, moles, voles, bats, wild carnivores, rabbits, skunks, and any other vertebrate pest, except rats and mice.
Application of a fumigant to one or more rooms in a structure or to the entire structure at a desired concentration for a length of time necessary for the control of rodents and/or insect pests, including the application of a fumigant to a localized space or harborage within a structure for local insect and/or rodent control.
Residential/Commercial Pest Control (304)
Application of pesticides, bait stations, or devices intended to prevent, destroy, repel, or mitigate structural pests, including without limitation insects and rodents. However, this category does not include the application of fumigants or actions taken to control wood-destroying organisms, outdoor vertebrates, or grain storage pests.
Stored Commodities Treatment (305)
Application of pesticides for the treatment of pests in raw grain stored in facilities which are not used for animal or human habitation; the application of plant growth regulators to agricultural commodities stored in facilities which are not used for animal or human habitation; the application of pesticides to commodity processing equipment or commodity storage facilities (not including offices or other structures).
Wood Preservation and Wood Products Treatment (306)
The application of pesticides to prevent, destroy, repel, or mitigate pests in wood or wood products which are, or are capable of being, incorporated into a structure, not including downed timber prior to bark removal or sawing.
Interior Plant Pest Control (307)
The application of pesticides to house plants and other indoor ornamental plants kept or located within structures occupied by humans, including but not limited to houses, apartments, offices, shopping malls, other places of business and other dwelling places, to control invertebrate pests that adversely affect such plants, including insects, mites, slugs, snails, and nematodes; and to control plant diseases.
If you hold a pesticide applicator's license granted by another state or jurisdication, there are a few things you need to know:
- You can become a licensed private applicator or certified operator in Colorado without passing any examinations.
- However, this reciprocal license is valid only for the unexpired term of your current license.
- In order to obtain your reciprocal license, you must:
- Provide proof of current certification and licensure in good standing from the other jurisdiction; and
- Pay an application fee.
- Your reciprocal license will expire on the same day your license in the other jurisdiction expires.
You cannot renew a reciprocal license by completing continuing education credits. You may, however, renew by:
For more information on reciprocal licensure, contact CDA at (303) 239-4178
- Applying for renewal based on reciprocity; or
- by taking the Colorado examinations and satisfying all other requirements for licensure in Colorado.