Colorado Pesticide Record Keeping & Compliance
Colorado regulates commercial pesticide application through the Colorado Department of Agriculture (CDA) under the Pesticide Applicators' Act. Lawn care businesses register with the CDA, staff qualified supervisors, keep three years of records, and honor the sensitive registry's advance-notice rules.
Published July 31, 2026 · Last reviewed July 31, 2026
Record keeping in Colorado
Retention: 3 years. Colorado commercial pesticide applicators must keep application records for at least three years under the Pesticide Applicators' Act. Records include the date, the location and size of the treated area, the product and EPA registration number, the rate and amount applied, and the qualified supervisor or certified operator responsible.
Licensing: Qualified Supervisor / Certified Operator License, administered by Colorado Department of Agriculture (CDA).
Notification & posting rules
Colorado maintains a pesticide-sensitive registry: registered individuals must receive advance notification before applications adjacent to their property. Commercial turf applications also carry posting requirements at the time of application.
Frequently asked questions
How long must pesticide records be kept in Colorado?
At least three years for commercial applications. Each record should identify the site and its size, date, product and EPA registration number, rate and amount, and the licensed individual responsible.
What is Colorado's pesticide-sensitive registry?
A CDA-maintained registry of individuals with medical sensitivity to pesticides. Commercial applicators must give registered individuals advance notice before applying pesticides to property adjacent to theirs.
Who licenses pesticide applicators in Colorado?
The Colorado Department of Agriculture licenses commercial pesticide application businesses, qualified supervisors, and certified operators.
Educational summary, not legal advice — verify current requirements with Colorado Department of Agriculture (CDA).
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Related state guides
Compare record-retention and notification requirements in these states with similar compliance profiles:
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