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Connecticut Pesticide Applicator License Exam Study Guide

Unofficial practice on Connecticut's pesticide statutes and regulations: every answer names its section of chapter 441 or the regulations.

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What fee accompanies an application for a certificate to apply pesticides by aircraft?

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Unofficial practice questions, not affiliated with the Connecticut Department of Energy and Environmental Protection. Bank checked October 15, 2026.

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Certificates and who needs one 28

  • A Connecticut private applicator uses restricted use pesticides for what purpose? Answer: Producing an agricultural commodity. Source: CGS 22a-47(e), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A person applies only general use pesticides, but does it commercially. Is a certificate required in Connecticut? Answer: Yes; commercial application of pesticides needs a certificate. Source: CGS 22a-54(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A person inspects a building for pest damage and recommends a treatment. Which certificate does RCSA 22a-66-5 require? Answer: A supervisory certificate. Source: RCSA 22a-66-5(f), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • A senior operator is asked to apply a pesticide in a category he is not certified in. How is he treated for that application? Answer: As a junior operator. Source: RCSA 22a-66-5(i), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • An operator arrives and finds no pests present. What does RCSA 22a-66-5 allow? Answer: The operator may choose not to apply the pesticide. Source: RCSA 22a-66-5(i), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
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Certificates and who needs one, continued

  • An operator calls for help during a job. How soon must the certified supervisor be able to reach the application site? Answer: Not later than two hours after being contacted. Source: RCSA 22a-66-5(i), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • Besides integrated pest management, what knowledge does CGS 22a-54(c) name for the certificate application? Answer: The role of honey bees in agriculture. Source: CGS 22a-54(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • How does CGS 22a-47 define integrated pest management? Answer: Using all available pest control techniques, with judicious pesticide use. Source: CGS 22a-47(dd), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • How many classifications of commercial applicator does Connecticut law set, and what are they? Answer: Two: supervisory and operational. Source: CGS 22a-54(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • In chapter 441, who is "the commissioner"? Answer: The Commissioner of Energy and Environmental Protection. Source: CGS 22a-47(g), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • The label does not require a certified supervisor at the site. What must the supervisor do before an operator makes a commercial application? Answer: Be present, or give the operator written instructions. Source: RCSA 22a-66-5(i), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • Must a municipal employee who uses restricted use pesticides be certified? Answer: Yes; federal, state and municipal employees must be certified. Source: CGS 22a-54(i), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Pesticides are to be applied by aircraft to shade tobacco. Within what distance of an inhabited residential building is the owner's written permission needed? Answer: 300 feet. Source: CGS 22a-54(e), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • To whom may a restricted use pesticide be sold in Connecticut? Answer: A certified commercial supervisor or private applicator, or a registered seller. Source: CGS 22a-57(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Under CGS 22a-47, which of these makes an individual a commercial applicator? Answer: Using any pesticide on property not owned or rented by him or his employer. Source: CGS 22a-47(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Under the 2026 Supplement, who may be authorized to apply pesticides to crops with an unmanned aircraft? Answer: An FAA-licensed operator who is also a licensed pesticide applicator. Source: CGS 22a-54(e), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What are the two classes of operational certificate in Connecticut? Answer: Junior and senior. Source: RCSA 22a-66-5(h), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • What does an operational certificate holder do unlawfully under CGS 22a-61(e)? Answer: Perform or solicit an activity that requires a supervisory certificate. Source: CGS 22a-61(e), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What fee accompanies an application for a certificate to apply pesticides by aircraft? Answer: $50. Source: CGS 22a-54(e), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What is the youngest age at which the commissioner may issue a pesticide certification? Answer: 18. Source: RCSA 22a-66-5(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • When may the commissioner certify an applicator without examination? Answer: For a nonresident certified in a state with similar law and reciprocity. Source: CGS 22a-54(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Where must the supervisor's written instructions be at the time of application? Answer: In the possession of the certified operator. Source: RCSA 22a-66-5(i), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • Which commercial applicator needs operational certification? Answer: One who actively uses pesticides in other than a supervisory capacity. Source: CGS 22a-54(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which commercial applicator needs supervisory certification? Answer: One who decides whether, where and how pesticides are to be employed. Source: CGS 22a-54(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which of these must written directions to a junior operator include? Answer: The pest to be controlled and the pesticide to be used. Source: RCSA 22a-66-5(i), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • Which of these persons needs an operator's certificate under RCSA 22a-66-5? Answer: One who mixes pesticides in other than completely closed containers. Source: RCSA 22a-66-5(g), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • Who must carry the wallet size certification document on the person? Answer: Anyone applying pesticides for hire as a supervisory commercial applicator. Source: RCSA 22a-66-5(d), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • Whose classification can make a product a "restricted use pesticide" in Connecticut? Answer: The EPA administrator's or the commissioner's. Source: CGS 22a-47(cc), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15

Certification terms, fees and renewal 18

  • A certification has lapsed for one year or more. What must the holder do to be certified again? Answer: Be examined again. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A certified applicator moves. How soon must the commissioner be told of the change of address? Answer: Not later than 30 days after the change. Source: RCSA 22a-66-5(e), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • A signed renewal application and fee do not reach the commissioner by midnight of the expiration date. What happens to the certification? Answer: It automatically lapses. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A state employee is certified without paying a fee, then leaves government employment. What happens to the certificate? Answer: It is void. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • The commissioner refuses to certify an applicant. How long does the applicant have to request a hearing? Answer: Thirty days from the date the denial is issued. Source: CGS 22a-54(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • For how long is a Connecticut applicator certification valid? Answer: Five years. Source: CGS 22a-54(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • For which certificate may the commissioner require separate examinations for different categories of application? Answer: The senior operational certificate. Source: RCSA 22a-66-5(h), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • How far ahead of expiration must the commissioner send the notice of expiration and renewal application? Answer: Not less than sixty days. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • How is the late fee worked out for renewing a certification that lapsed less than one year ago? Answer: Ten per cent of the renewal fee plus 1.25 per cent a month. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • How must an applicant show knowledge of the proper use of pesticides and the precautions to take? Answer: Upon examination. Source: CGS 22a-54(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • The owner of a golf course longer than one thousand yards owes the commissioner what each year? Answer: A fee of $250, not later than December 31. Source: CGS 22a-54a, Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Under the schedule in RCSA 22a-66-5(j), what share of certificates comes due each year? Answer: One-fifth. Source: RCSA 22a-66-5(j), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • What annual registration fee does a seller of restricted or permit use pesticides pay? Answer: $120. Source: CGS 22a-56(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What does CGS 22a-54(d) require of the standards for certification? Answer: Separate standards for supervisory, operational and private applicators. Source: CGS 22a-54(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What is the statutory fee for certification as a private applicator? Answer: $100. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What is the statutory fee for operational certification as a commercial applicator? Answer: $80. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What is the statutory fee for supervisory certification as a commercial applicator, and for its renewal? Answer: $285. Source: CGS 22a-54(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What may the commissioner charge for a duplicate certificate? Answer: Two dollars. Source: RCSA 22a-66-5(c), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15

Signs, notification and use rules 28

  • A business receives a neighbor's request for notification. How soon must it forward the original request to the department? Answer: Within five calendar days of receipt. Source: RCSA 22a-66a-2(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • A business will treat a state-owned pond that has public access. Besides posting signs, what notice is required? Answer: Publication in a newspaper of general circulation in each municipality. Source: CGS 22a-66a(h), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A commercial applicator makes an outdoor application within one hundred yards of a property line. How often along the road frontage must a sign be posted? Answer: Every 150 feet. Source: CGS 22a-66a(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A neighbor on the registry abuts a property to be treated within one hundred yards of the line. By when must the business have tried to notify the neighbor? Answer: Not later than 24 hours before the application. Source: CGS 22a-66a(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A pesticide is classified for permit use. Who may apply it? Answer: A permit holder, or someone directly supervised by one. Source: CGS 22a-50(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A railroad company will apply pesticide to its rights-of-way. How far ahead must it notify the Department of Transportation and each municipality's chief elected official? Answer: Not later than 21 days before. Source: CGS 22a-66a(j), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A restricted use pesticide is applied outdoors on land producing agricultural commodities. What is the smallest sign CGS 22a-66a(d) allows? Answer: Eight and one-half inches by eleven inches. Source: CGS 22a-66a(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Before a pesticide is applied on a golf course, where must signs be posted? Answer: At the clubhouse and at the first tee. Source: CGS 22a-66a(e), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Before agreeing to apply a pesticide, what must a pesticide application business give the person requesting it? Answer: Notice of the registry and a copy of the key parts of the label. Source: CGS 22a-66a(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • For how long after the application may nobody remove a posted pesticide application sign? Answer: 24 hours. Source: RCSA 22a-66a-1(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • For how long must a pesticide application business keep notifying a neighbor who asked for notice, unless the registry rule ends it sooner? Answer: A minimum of three years from the request. Source: RCSA 22a-66a-2(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • For which pesticide applications does CGS 22a-66a(i) require no notice from the state, a municipality or a pesticide application business? Answer: Applications to rights-of-way, distribution lines and roadsides. Source: CGS 22a-66a(i), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • From October 1, 2027, CGS 22a-50(l) bars use of neonicotinoid pesticides, with exceptions. Which use is excepted? Answer: Use in agriculture. Source: CGS 22a-50(l), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • From which water may no water for pesticide applications be drawn? Answer: Any stream or pond leading to a potable water supply reservoir. Source: RCSA 22a-66-3(d), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • How high above the ground must the bottom of a lawn pesticide application sign be? Answer: At least 12 inches, with the top no higher than 48 inches. Source: RCSA 22a-66a-1(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • How large is the pesticide application sign required for lawns and similar outdoor applications? Answer: Four inches high by five inches wide. Source: RCSA 22a-66a-1(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • How large must a golf course pesticide application sign be? Answer: At least twelve inches high by twelve inches wide. Source: RCSA 22a-66a-1(d), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • How long must the controlling authority keep a copy of each notice of pesticide application at a municipal playground? Answer: Five years from the date of application. Source: CGS 22a-66m(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • How many attempts must a pesticide application business make to notify an abutting owner or tenant who has requested notice? Answer: Not less than two. Source: CGS 22a-66a(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Someone reads the telephone number on a posted sign and calls the commercial applicator. What must the applicator provide? Answer: The pesticide names, EPA registration numbers, re-entry restrictions and date. Source: RCSA 22a-66a-1(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • To which trees may no neonicotinoid insecticide be applied in Connecticut, in any manner? Answer: Linden or basswood trees. Source: CGS 22a-61a(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What does CGS 22a-66m say about lawn care pesticides on a municipal playground? Answer: None may be applied, except in an emergency threat to human health. Source: CGS 22a-66m(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What has been unlawful to install or use in Connecticut since January 1, 2019? Answer: A residential automatic pesticide misting system. Source: CGS 22a-66n(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What must be on every hose used to draw water from a water supply, if a reversal of flow could let pesticide into the hose? Answer: A check valve or anti-siphoning device. Source: RCSA 22a-66-3(b), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • Where may chlorpyrifos not be used or applied under CGS 22a-61c? Answer: On any golf course, or for any cosmetic or nonagricultural use. Source: CGS 22a-61c, Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which outdoor application is excepted from the sign requirement of CGS 22a-66a(c)? Answer: A noncommercial application to less than one hundred square feet. Source: CGS 22a-66a(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which products did the commissioner have to classify for restricted use not later than January 1, 2026? Answer: Second-generation anticoagulant rodenticides. Source: CGS 22a-50(m), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Who has exclusive authority in the regulation of pesticide spraying in Connecticut? Answer: The commissioner. Source: CGS 22a-54(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15

Records, reports and business registration 13

  • A customer asks in writing for the record of a pesticide application done for him. What must the business do? Answer: Provide the customer with a copy of that record. Source: CGS 22a-66g(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • By what date must a commercial applicator send the commissioner the summary for the preceding calendar year? Answer: On or before January 31. Source: CGS 22a-58(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • How long must a Connecticut commercial applicator keep records of pesticide use? Answer: Not less than five years after the date of application. Source: CGS 22a-58(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • How long must a pesticide application business maintain its records? Answer: Not less than five years from when the record is made or amended. Source: CGS 22a-66g(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Information in a pesticide application business's registration changes. How soon must the commissioner be notified in writing? Answer: Not more than thirty days after the change. Source: CGS 22a-66c(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What does a commercial applicator do with the written instructions given to an operator, once the job is done? Answer: Retain them as part of the records required by CGS 22a-58(d). Source: RCSA 22a-66-5(i), Regulations of Connecticut State Agencies, on the Connecticut eRegulations System, read 2026-10-15
  • What fee accompanies an application to register a pesticide application business, and who is exempt from it? Answer: $240; a business with not more than one certified applicator is exempt. Source: CGS 22a-66c(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What must a commercial applicator have submitted before a new certificate or a renewal is issued? Answer: The pesticide use summary for the previous calendar year. Source: CGS 22a-66e(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What must a person obtain before operating a pesticide application business in Connecticut? Answer: A certificate of registration from the commissioner. Source: CGS 22a-66c(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What must a private applicator do with the record of each use of a restricted use pesticide? Answer: Send a copy to the commissioner by January 31 for the preceding year. Source: CGS 22a-58(c), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Where must a registered pesticide application business display its registration number? Answer: On the body of each motor vehicle it uses in the business. Source: CGS 22a-66c(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which of these must a commercial applicator's record show? Answer: The pest treated for. Source: CGS 22a-58(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Whom must a pesticide application business employ at each place of business, for each category in which it applies pesticides? Answer: At least one commercial supervisory applicator certified in that category. Source: CGS 22a-66f, Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15

Prohibited acts and penalties 15

  • A commercial applicator knowingly violates chapter 441. What is the criminal penalty? Answer: A fine of not more than $5,000, up to one year in prison, or both. Source: CGS 22a-63(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A person not certified as a commercial applicator performs commercial application of a pesticide. What civil penalty applies to a first violation? Answer: $1,000 to $2,000 for each day the violation continues. Source: CGS 22a-63(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A person who holds no commercial applicator certificate advertises pesticide application services. What does CGS 22a-61(d) say? Answer: Advertising or soliciting commercial application is unlawful for that person. Source: CGS 22a-61(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A pesticide application business is denied registration. How long does it have to request a hearing? Answer: Thirty days from the date the decision is deposited in the mail. Source: CGS 22a-66d(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • A private applicator knowingly violates chapter 441. What is the criminal penalty? Answer: A fine of not more than $1,000, up to thirty days in prison, or both. Source: CGS 22a-63(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • An employee of a pesticide business violates chapter 441 while working. Whose act is it in law? Answer: Both the employee's and the employer's. Source: CGS 22a-63(d), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Before the commissioner revokes or suspends an applicator certification, what must take place? Answer: A hearing under chapter 54. Source: CGS 22a-61(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • For what purpose may officers designated by the commissioner enter a place where pesticides are used, at reasonable times? Answer: To observe the application and see whether the applicator is certified. Source: CGS 22a-59(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What civil penalty may be assessed against any person who violates chapter 441? Answer: Not more than $2,500 for each day the violation continues. Source: CGS 22a-63(e), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What does a person forfeit to the state for violating the pesticide application business sections, 22a-66b to 22a-66j? Answer: Not more than $5,000 for each day of violation. Source: CGS 22a-66h, Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What does CGS 22a-61(b) say about using a registered pesticide in a manner inconsistent with its labeling? Answer: It is unlawful. Source: CGS 22a-61(b), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • What is the fine for violating the notification and sign section, CGS 22a-66a? Answer: Not more than $90. Source: CGS 22a-66a(l), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which event requires the commissioner to review an applicator's certification? Answer: Revocation of the applicator's certification in another state. Source: CGS 22a-61(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which of these is a ground to deny, revoke or suspend a pesticide application business registration? Answer: Work in a category for which the applicator is not certified. Source: CGS 22a-66e(a), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15
  • Which of these is a listed ground for denying, suspending or revoking applicator certification? Answer: Operating faulty or unsafe equipment. Source: CGS 22a-61(f), Connecticut General Statutes, chapter 441, revised to January 1, 2025, with the 2026 Supplement, read 2026-10-15

How this list was compiled: Our own questions on the Connecticut Pesticide Control Act, General Statutes chapter 441, revised to January 1, 2025 (https://www.cga.ct.gov/current/pub/chap_441.htm), with sections 22a-50 and 22a-54 as they stand in the 2026 Supplement (https://www.cga.ct.gov/2026/sup/chap_441.htm), and on sections 22a-66-1, 22a-66-3, 22a-66-5, 22a-66a-1 and 22a-66a-2 of the Regulations of Connecticut State Agencies, read on the Connecticut eRegulations System (https://eregulations.ct.gov/eRegsPortal/Browse/RCSA/Title_22aSubtitle_22a-66/), all read 2026-10-15. Exam facts were read on the Department of Energy and Environmental Protection's certification pages (https://portal.ct.gov/DEEP/Pesticides/Pesticide-Certification-General/Pesticide-CertificationLicensing and the supervisor, junior operator and private applicator pages linked from it), read 2026-10-15. Each question names the section its answer was read from and links to it. Licence: Questions, choices and explanations are original work of this site. The statutes and regulations they describe are public law of the State of Connecticut.

How it works

This unofficial Connecticut pesticide applicator license exam study guide drills the law: 102 questions of our own on General Statutes chapter 441 and the pesticide regulations. It is not affiliated with the Connecticut Department of Energy and Environmental Protection (DEEP).

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What DEEP says to study

For supervisory exams DEEP lists the category's Cornell manual, a core manual and its booklet of pertinent statutes and regulations. Junior operators have their own study manual and statutes booklet. This page covers the statutes and regulations.

Which certificate

Commercial applicators are supervisors or operators; farmers who use restricted use pesticides are private applicators. Among applicators, only supervisors and private applicators may buy restricted use pesticides.

Exam length

DEEP's pages allow up to three hours for the supervisory written exam and give the junior operator exam 60 questions. A mock exam here is 60 questions.

  • Commercial applicators keep records five years; the yearly use summary is due on or before January 31.
  • A supervisor must be able to reach the site within two hours of an operator's call.
  • Lawn signs are four inches by five and stay up 24 hours after the application.

Questions and answers

Is this an official Connecticut pesticide license exam study guide?

No. It is unofficial practice written for this site from chapter 441 and the regulations. DEEP gives the real exams online through a proctoring service, and none of their questions are here.

What score passes the Connecticut pesticide applicator exam?

DEEP's pages give 75 percent for the supervisory written exam and for the private applicator exam, and 80 percent for the junior operator exam. A minimum of 30 days must pass between attempts.

How much does the Connecticut pesticide exam cost?

DEEP's exam fee is $200, the same for a retest; its proctoring service charges its own fee. By statute, certification then costs $285 for a supervisor, $80 for an operator and $100 for a private applicator.

How long is a Connecticut pesticide certification good for?

Five years, under section 22a-54. DEEP says supervisors and private applicators renew with 12 continuing education credits and their yearly pesticide use summaries; supervisors need the 12 credits in each category.

Is there an oral exam for the Connecticut supervisor license?

For most categories, yes. DEEP says it follows a passed written exam, is held in person at 79 Elm Street in Hartford and normally takes 20 to 30 minutes, with questions from two to four board members.

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