Connecticut Pesticide Record Keeping & Compliance
Connecticut regulates commercial pesticide application through DEEP. With five-year record retention, a ban on pesticides at K-8 school grounds, and prior-notice registries, Connecticut lawn care operators need airtight records and dependable notifications.
Published July 31, 2026 · Last reviewed July 31, 2026
Record keeping in Connecticut
Retention: 5 years. Connecticut commercial pesticide application businesses must keep application records for five years. Records include the date, the location and size of the treated area, the product and EPA registration number, the concentration and total amount, and the certified applicator who made or supervised the application.
Licensing: Commercial Supervisory / Operator Certification, administered by Connecticut Department of Energy & Environmental Protection (DEEP).
Notification & posting rules
Connecticut bans pesticide applications on the grounds of schools through grade 8 (with limited exceptions) and requires prior-notice registries: residents can register to receive advance notice of applications to abutting properties.
Frequently asked questions
How long do Connecticut businesses keep pesticide records?
Five years for commercial application businesses — well beyond the federal two-year baseline. Records must capture the site and its size, date, product and EPA registration number, concentration, amount, and the certified applicator.
Can I apply pesticides on school grounds in Connecticut?
Connecticut bans pesticide applications on the grounds of schools through grade 8, with narrow exceptions such as emergencies. Always verify a property's status before scheduling treatment.
Who certifies pesticide applicators in Connecticut?
DEEP certifies commercial supervisory and operator applicators and registers pesticide application businesses.
Educational summary, not legal advice — verify current requirements with Connecticut Department of Energy & Environmental Protection (DEEP).
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Related state guides
Compare record-retention and notification requirements in these states with similar compliance profiles:
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