• 65 questions

Ohio Certified Pesticide Applicator Practice Test

Every answer shows the right choice and the Ohio Revised Code section or rule behind it.

What is the fee for an Ohio private applicator license per licensing period?

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Unofficial practice questions, not affiliated with the Ohio Department of Agriculture. Bank checked October 8, 2026.

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All 65 questions

Who needs a license 18

  • A commercial applicator is licensed in one pesticide-use category. Where may the applicator apply pesticides? ORC 921.06(D)(2), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • A commercial applicator may apply fumigants only when licensed in one of three categories. Which is one of them? OAC 901:5-11-02(C), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • A commercial license renewal is postmarked after the licensing period has expired. What happens to the fee? OAC 901:5-11-04(A), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • A licensed commercial applicator also grows soybeans. What does ORC 921.06(D) say about applying pesticides to that crop? ORC 921.06(D)(1), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • A pesticide business moves its principal place of business. How soon must the director be told? ORC 921.09(C)(4), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • A township road worker applies herbicide as part of the job. What license does ORC 921.06 require? ORC 921.06(A)(1)(b), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
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Who needs a license, continued

  • An apartment owner's employee applies pesticides at the owner's rental property. At what size does the property trigger the commercial license requirement? ORC 921.06(A)(1)(d)(iv), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • Besides passing examinations, what must an applicant for the wood-destroying insect diagnostic inspection category submit? OAC 901:5-11-08(A)(4), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • For what purpose may an Ohio private applicator use a restricted use pesticide? ORC 921.11(E), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • How long does an Ohio private applicator licensing period last? OAC 901:5-11-05(B), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How many commercial applicators must a pesticide business employ? ORC 921.09(D), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • May an Ohio city ban the use of a registered pesticide on private property? ORC 921.26(C)(2), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • ORC 921.26 exempts a person who uses pesticides incidentally. Which pesticides may that incidental use involve? ORC 921.26(A)(6), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • What is the fee for an Ohio commercial applicator license per licensing period? OAC 901:5-11-04(A), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • What is the fee for an Ohio private applicator license per licensing period? OAC 901:5-11-05(A), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • What is the minimum per-occurrence limit of the commercial general liability insurance that rule 901:5-11-07(B) requires of a pesticide business? OAC 901:5-11-07(B)(3), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • When does the Ohio commercial applicator licensing period run? OAC 901:5-11-04(B), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Which individual needs an Ohio commercial applicator license under ORC 921.06? ORC 921.06(A)(1)(a), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08

Exams and recertification 12

  • A license is not renewed within how many days of its expiration before ORC 921.12(B) requires another examination? ORC 921.12(B), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • A nonresident commercial applicator may be exempted from Ohio's examinations for categories held in another state when which condition is met? OAC 901:5-11-04(D), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • An applicant fails an examination. How soon may the applicant be re-tested without special permission of the director? OAC 901:5-11-08(A)(7), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • An applicant passes the core examination but fails the category examination. For how long may the passing core score be re-used? OAC 901:5-11-08(A)(8), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How many exam sessions may a candidate schedule at once with the Ohio Department of Agriculture, and how far apart? Ohio Department of Agriculture, Exam Registration, read 2026-10-08
  • How much approved training in three years exempts a commercial applicator from re-examination? OAC 901:5-11-08(B)(1), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How much approved training in three years exempts a private applicator from re-examination? OAC 901:5-11-08(B)(2), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How often does rule 901:5-11-08(B) require re-examination of a licensed applicator who has not taken the approved training? OAC 901:5-11-08(B), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • On what must ORC 921.12 examine an applicant, besides the proper use, handling and application of pesticides? ORC 921.12(A)(1), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • What must an applicant present before being allowed to sit an Ohio pesticide examination? OAC 901:5-11-08(C), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • When may a licensed applicator apply to add a new pesticide-use category to the license? OAC 901:5-11-08(A)(2), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Which examinations does rule 901:5-11-08 require of every applicant for an Ohio pesticide applicator license? OAC 901:5-11-08(A), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08

Servicepersons and safety rules 13

  • A person under eighteen may not handle, mix or load a pesticide bearing which signal words without on-site supervision by a pesticide applicator? OAC 901:5-11-02(B)(3), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • A trained serviceperson applies a pesticide while the supervising applicator is away from the site. What must be readily available at the worksite? OAC 901:5-11-02(D)(3), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Above what wind speed, measured at eye level, may herbicidal foliage sprays not be applied by aircraft to woody vegetation on rights-of-way? OAC 901:5-11-02(B)(12), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • An applicator learns of a human illness requiring medical attention that allegedly resulted from a pesticide the applicator used. How must the department be told? OAC 901:5-11-02(D)(4)(a), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • An applicator plans to apply a rodenticide by aircraft. Whose approval is needed, and how far ahead must it be requested? OAC 901:5-11-02(B)(14)(b), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Application equipment that draws water from surface waters or a public water supply must have what? OAC 901:5-11-02(B)(5), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Before a trained serviceperson's first occupational exposure to pesticides, what must the employee have done? OAC 901:5-11-02(A)(1), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How close must the supervising commercial applicator be while a trained serviceperson applies pesticides? OAC 901:5-11-02(A)(3), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How long must an employer keep the written verification of a trained serviceperson's training? OAC 901:5-11-02(A)(2), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • In ORC 921.11, which of these counts as "use" of a restricted use pesticide? ORC 921.11(A), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • Property damage allegedly caused by an applicator's pesticide must be reported in writing within ten calendar days when it exceeds what amount? OAC 901:5-11-02(D)(4)(b), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Where does rule 901:5-11-02(B)(9) forbid mixing, loading or storing agricultural pesticides? OAC 901:5-11-02(B)(9), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Who may directly supervise the application of a restricted use pesticide in Ohio? ORC 921.11(C), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08

Records and dealers 10

  • A dealer's annual report of restricted use pesticide sales covers which period, and when is the copy due at the department? OAC 901:5-11-10(D)(2) and (D)(3), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Before applying a termiticide to a structure, what record must a commercial applicator create? OAC 901:5-11-10(A)(3), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • For an outdoor application outside the structural categories, which weather facts go in a commercial applicator's record? OAC 901:5-11-10(A)(2)(j), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How long must a pesticide business keep the application records submitted to it? OAC 901:5-11-10(C)(1), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How long must a pesticide dealer keep its records of restricted use pesticide sales? OAC 901:5-11-10(D)(1), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How soon must a commercial applicator submit a copy of each application record to the registered pesticide business location or employer? OAC 901:5-11-10(A)(5), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • To whom may a restricted use pesticide be distributed under rule 901:5-11-02(B)(10)? OAC 901:5-11-02(B)(10), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • When must an Ohio commercial applicator make the record of a pesticide application? OAC 901:5-11-10(A), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Which item does rule 901:5-11-10(E) require in a private applicator's record? OAC 901:5-11-10(E)(1), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Which pesticide applications must an Ohio private applicator record? ORC 921.14(C), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08

Notices and penalties 12

  • A crop in flower, half an acre or more, is to be treated with a pesticide labeled toxic to honey bees. Who must be notified at least twenty-four hours ahead? OAC 901:5-11-02(B)(15), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • A first violation of chapter 921, other than divisions (G) and (P) of section 921.24, is what grade of offense? ORC 921.99(A), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • A neighbor whose property abuts a treated lawn has asked the pesticide business in writing for prior notice. By when must the business try to give it? OAC 901:5-11-09(B)(1), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • A pesticide is applied in a school classroom building before the school day. How long before the school day begins must it be applied? OAC 901:5-11-15(B)(1)(c), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • For how long may the director suspend a license before a hearing? ORC 921.23(A), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • For how long must lawn posting signs remain in place after a lawn pesticide application? OAC 901:5-11-09(A)(1)(a)(vii), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • How close to a common access point must a lawn sign posted at that access point be? OAC 901:5-11-09(A)(1)(c)(i), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • In a civil action brought by the attorney general, what is the largest civil penalty a court may order for a first violation of chapter 921? ORC 921.25(B)(1), Ohio Revised Code as shown on codes.ohio.gov, read 2026-10-08
  • May a company logo appear on the face of an Ohio lawn posting sign? OAC 901:5-11-09(A)(1)(c)(i), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • What is the smallest lawn posting sign rule 901:5-11-09 allows, and how high must its bottom edge be? OAC 901:5-11-09(A)(1)(c)(i), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Which lawn pesticide application is exempt from the notification rule? OAC 901:5-11-09(E), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08
  • Which product may be applied in a school building under rule 901:5-11-15(B)(3) without meeting the timing conditions? OAC 901:5-11-15(B)(3), Ohio Administrative Code as shown on codes.ohio.gov, read 2026-10-08

How this list was compiled: Our own questions on Ohio Revised Code chapter 921 (https://codes.ohio.gov/ohio-revised-code/chapter-921) and Ohio Administrative Code chapter 901:5-11 (https://codes.ohio.gov/ohio-administrative-code/chapter-901:5-11), both read 2026-10-08. Exam format facts are from the Ohio Department of Agriculture pesticide pages (https://agri.ohio.gov/divisions/plant-health/pesticides/commercial, read 2026-10-08). 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 rules they describe are public law of the State of Ohio.

How it works

This unofficial Ohio certified pesticide applicator practice test asks 65 questions of our own on Revised Code chapter 921 and Administrative Code chapter 901:5-11: licenses, exams, trained servicepersons, records and notices. It is not affiliated with the Ohio Department of Agriculture.

Read the full guide

What the core exam covers

The department says both core exams, private and commercial, cover Ohio's laws and regulations, safety procedures, and equipment. This Ohio pesticide core practice test drills the first of those. The federal label and worker protection rules are on the pesticide applicator practice test.

After the core

Every license also needs at least one category exam, such as grain and cereal crops for a private applicator or agronomic pest control for a commercial one. Category subjects are not asked here.

Exam mode

Exam mode draws 20 questions, our number, so each run is a new Ohio pesticide applicator practice exam. The department's license and exam registration pages give no question count or pass mark, so the result is a score with no verdict.

  • A trained serviceperson works within 25 miles or two hours of the supervising commercial applicator.
  • Lawn signs: five by four inches, bottom edge fourteen inches up, left in place twenty-four hours.

Questions and answers

Is this the real Ohio pesticide applicator test?

No. It is unofficial practice written for this site from Ohio Revised Code chapter 921 and its rules. The real exams are given by the Ohio Department of Agriculture, and none of their questions are here.

What is on the Ohio pesticide applicator license test?

A general core examination and one examination for each pesticide-use category applied for, under rule 901:5-11-08. Section 921.12 says the exams cover the chapter, its rules and the proper use, handling and application of pesticides.

Is this an Ohio pesticide applicator study guide for core?

No. The department lists the core study guides on its license pages, and they are sold through Ohio State University Extension. This page checks the law chapters after you have read them.

Is this Ohio pesticide practice test for private or commercial applicators?

Both. Chapter 921 binds both, and a question says so where a rule fits one license only. The private license runs three years to March 31; the commercial one runs a year to September 30.

How soon can I retake an Ohio pesticide exam?

No sooner than five business days after the last attempt, under rule 901:5-11-08(A)(7). A passing core or category score can be re-used for one year while you finish the other.

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