Updated October 31, 2026 | John Bosman | 1,317 words
Colorado pest control companies are licensed by the Colorado Department of Agriculture (CDA) under the Pesticide Applicators' Act. The law asks for at least $400,000 in liability insurance, and then adds a line most states leave out: a liability policy with a so-called pollution exclusion still satisfies the requirement.
That means a certificate can meet the state rule and still leave pesticide contamination claims outside your policy. As an independent insurance agency working with pest control companies, Reasons Insurance can help you review how your policy treats pollution, drift and contamination before a claim does it for you.
Colorado licensing snapshot
- Regulator: Colorado Department of Agriculture, Pesticide Applicators' Act (C.R.S. 35-10)
- Business license: required for anyone applying pesticides for hire; $350 a year; issued for the calendar year and expires December 31
- Qualified supervisor: licensed in each pest management category the business works in
- Liability insurance: at least $400,000, with written notice to the commissioner at least 10 days before cancellation
- Structural categories: 301 wood destroying organisms, 302 outdoor vertebrate, 303 structural fumigation, 304 residential/commercial
- Late renewal: a $35 late fee before February 1; after that, a new application
Official sources: CDA commercial applicator FAQs · CDA license categories · C.R.S. 35-10-106
C.R.S. 35-10-106(1)(a) says liability policies containing a pollution exclusion satisfy the $400,000 requirement. The state minimum is about licensing, not about whether a contamination claim is covered. Ask us to review the pollution wording on your policy.
Your business must link a qualified supervisor licensed in each category you work in, and report licensed employees within 15 days of hire or release. If a category goes uncovered, the work in it is a license question and possibly an insurance question too.
Before wood-destroying, residential/commercial or interior plant work in a multi-unit dwelling where a registered person lives, you must attempt notice at least 24 hours ahead. A missed notice can turn into a complaint, so ask how your policy responds to one.
To license a commercial applicator business, CDA asks for a completed application, a linked qualified supervisor, proof of liability insurance of at least $400,000, a Certificate of Good Standing from the Secretary of State for corporations, partnerships and LLCs, and the $350 annual fee. The policy may not be canceled unless the commissioner gets written notice at least 10 days before.
If you work under more than one business name, each DBA must be listed, with a $100 annual fee for each extra name, and records kept separately for each. Ask us to check that every name you use appears on your policy the way it appears on your license.
CDA says new licensees should expect an inspection in their first year and others are inspected about every three years. Changes to the information on your application must be reported within 15 days.
Most pest control claims start with a treatment: a misapplied product, drift onto a neighbor's property or a contaminated well or yard. Because Colorado lets a pollution exclusion count toward the $400,000 requirement, a company can be licensed and still have no pollution coverage. We can help you review options for pollution liability and compare the exclusions line by line.
Colorado State University Extension says termites are an increasing problem in Colorado, especially in urban areas, and that the eastern subterranean termite usually causes the structural damage. A small area of Grand Junction also has drywood termites, which need different tactics. Termite work often means drilling injection holes and treating soil around or under a home, which is where property damage and wood-destroying organism questions come up.
CSU Extension also says brown recluse spiders are extremely rare in Colorado, are the most commonly misidentified spiders in the state, and that bites are greatly over-diagnosed. When a customer blames a spider bite on a home you service, good records help, and so does knowing how your policy handles bodily injury allegations.
The Colorado Pest Control Association is the state trade group for pest management companies and a good place to follow CDA rule changes, continuing education and PSR updates.
If you already carry coverage in Colorado, the Pest Control Insurance Friction Check walks you through the questions that tend to cause trouble at a certificate request, a renewal or a claim. It takes a few minutes and you can bring the results to a review.
Reasons Insurance is an independent insurance agency in New Brighton, Minnesota. We start with a risk review of how your company actually works, put what we find in writing and only then compare options with the insurers we work with. You can read more about how we work, and you can check any agency's license with the Colorado Division of Insurance license verification.
C.R.S. 35-10-106 requires at least $400,000 in liability insurance for a commercial applicator business license, with 10 days' written notice to the commissioner before cancellation. That is a licensing minimum, not a recommendation for your company.
Yes. The statute says policies with a so-called pollution exclusion satisfy the requirement. It does not mean contamination claims are covered, so ask us to review your pollution wording.
For structural work, CDA says notice applies to wood-destroying, residential/commercial and interior plant applications in a multi-unit dwelling where a registered person lives. You must attempt notice at least 24 hours before, with the date, approximate time and address.
CDA's structural categories include 301 wood destroying organism, 302 outdoor vertebrate, 303 structural fumigation and 304 residential/commercial pest control. Your qualified supervisor must be licensed in each category your business works in.
CDA requires you to list each additional DBA, with a $100 annual fee per name, and keep separate application records for each. Ask us to confirm that each name is reflected on your policy.
Reasons Insurance is an independent insurance agency. We work with several insurers instead of a single company, compare the options available to you and explain the differences in writing. You make the choice.
See our national pest control insurance overview, or compare rules in nearby states: Texas pest control insurance and the TDA ALS-1101 certificate; Kansas pest control insurance and K.S.A. 2-2448 financial responsibility; Arizona pest control insurance and the $500,000 financial security rule.
Related reading: when a van crash becomes a chemical cleanup claim; common pest control insurance coverage gaps; termite inspection liability and E&O. For the core policy, see our page on general liability insurance.
Other states we serve for pest control: Texas · Illinois · Kansas · Minnesota · Ohio · Indiana · Michigan · Missouri · Arizona · North Carolina · Virginia · Kentucky · Wisconsin · Iowa
Have your current certificate of insurance, your declarations pages and your CDA license number handy. Call (651) 636-6911 or start a coverage review, and we will walk through your Colorado pest control insurance with you. Questions about your license itself go to the CDA commercial applicator licensing program.
Request a Colorado pest control coverage review
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