How should sleeves and gloves be worn when applying a pesticide?

Gloves pulled up over the sleeves

No gloves if the label says caution

Sleeves rolled up above the elbows

What does a PCP registration number on a product tell you?

Health Canada has reviewed and registered the product

The product is safe to use without any protective gear

The product was made in Canada by a licensed operator

The product can be used on any pest in any location

A customer finds an old can of chlordane in a garage. What does the regulation allow?

Only managing it as hazardous waste

Selling it back to a licensed vendor

Using it once, then rinsing the container

Using it up indoors where it is safe

According to O. Reg. 63/09, how must every pesticide be used?

In accordance with its label and the regulation

However the supervising technician recommends

At double the label rate for heavy infestations

As the client asks, if the client signs a waiver

For an indoor fumigation with a Class B fumigant gas, when must written notice be delivered?

At least 24 hours and no more than 7 days before

Within 7 days after the fumigation ends

Only on the morning of the fumigation

At least 30 days before the fumigation, by registered mail

What is the main purpose of sticky traps in a cockroach program?

To show where roaches are so treatment can be focused

To eliminate a large infestation without other steps

To attract roaches from neighbouring units for removal

To replace sanitation in restaurants and kitchens

What is the preferred use for rinse water from triple-rinsing a container?

Add it to the spray tank and use it on the job

Pour it onto gravel behind the building

Keep it in the empty container for later

Pour it down the nearest storm sewer grate

All Ontario practice tests

Ontario Pesticide Exam Practice Test 2026 – Free Ontario Pesticide Exam Questions

Original questions written from the official Ontario handbook, with an explanation for every answer.

By the Canada Exam Prep Editorial Team · Updated October 17, 2026

No sign-up
Every answer explained
Independent · not a government site

149 questions
6 practice tests

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In what container must a pesticide normally be kept?

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All Ontario Pesticide Exam practice tests

6 sets of 25 questions. Each set is fixed, so you can repeat it until you score 100%.

Exam facts

Key facts: Ontario Pesticide Exterminator Exam – Core and Structural (OPT&C)

2 × 50 questionsExam formatTwo multiple-choice parts of 50 questions: Core Manual exam and Licence Category Specific Module examOPT&C — Become an Exterminator
1 h closed / 1.5 h openTime and booksCore exam 1 hour, closed book; category module exam 1.5 hours, open bookOPT&C — Become an Exterminator
75% on both partsPass mark75% or greater on both the Core and the Licence Category Specific Module examsOPT&C — Become an Exterminator
$214Certification fee$214 for the Core and one category; $192 per additional category within 12 monthsOPT&C — Fees
$82, within 12 monthsRewritesUp to two more attempts within 12 months, no more than two attempts in any six-month period; $82 per rewriteOPT&C — Fees
$90 for 5 yearsLicenceApply to MECP within one year of certification; exterminator licence fee $90, valid five yearsOPT&C — Become an Exterminator
16 + Grade 10Minimum ageExterminator licence applicants must be at least 16 with Grade 10 standing or equivalentOPT&C Exterminator Information Guide (2025)
Within 10 working daysResultsResults are mailed within 10 working days and are not released by phoneOPT&C Exterminator Information Guide (2025)

Free practice tests for the Ontario pesticide exterminator certification exam, with a focus on the Core exam and the Structural licence category. Every question is original and explains the rule behind the answer, citing Ontario Regulation 63/09, the federal Pest Control Products Regulations, Health Canada or the OPT&C information guide. No sign-up, no limits, and your progress stays on your device.

Important: the OPT&C Core Manual and category modules are sent to registered candidates and we never copy them. Our questions come from the public law and free government guidance: licensing and supervision, pesticide classes, reading labels, safe use and protective equipment, storage and transport, containers and spills, structural extermination rules, and common structural pests such as cockroaches, carpenter ants, bed bugs and rodents.

What the test covers

Topics and question bank

Every question is tagged to one topic from the official handbook. Pick a topic to drill just that area.

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Sample Ontario Pesticide Exam questions

Tap a question to see the answer. The full interactive test is at the top of the page.

1In what container must a pesticide normally be kept?
- A. A container chosen by the client
- B. Any clean food or drink container
- C. The original container it was sold in
- D. An unlabelled spray bottle
No person may possess a pesticide other than in its original container, except as allowed for exterminators using a properly labelled secondary container.
2What minimum commercial general liability insurance must an operator carry?
- A. $2,000,000 per occurrence
- B. $10,000,000 per occurrence
- C. $500,000 per occurrence
- D. $100,000 per occurrence
Operators need at least $1,000,000 employers' liability (unless covered by WSIB), $2,000,000 commercial general liability and $1,000,000 pollution liability coverage.
3How should sleeves and gloves be worn when applying a pesticide?
- A. Sleeves over the gloves
- B. Gloves pulled up over the sleeves
- C. No gloves if the label says caution
- D. Sleeves rolled up above the elbows
Keep sleeves over gloves and pant legs over boots so pesticide cannot run inside your protective gear.
4What does a PCP registration number on a product tell you?
- A. The product is safe to use without any protective gear
- B. The product was made in Canada by a licensed operator
- C. The product can be used on any pest in any location
- D. Health Canada has reviewed and registered the product
The registration number shows Health Canada reviewed and registered the product for use in Canada. A product without one is unregistered and illegal to use.
5A customer finds an old can of chlordane in a garage. What does the regulation allow?
- A. Only managing it as hazardous waste
- B. Selling it back to a licensed vendor
- C. Using it once, then rinsing the container
- D. Using it up indoors where it is safe
Aldrin, chlordane, chlordecone, DDT, dieldrin and endrin may not be used, stored, sold or transported, except to be managed and disposed of as hazardous waste.
6According to O. Reg. 63/09, how must every pesticide be used?
- A. However the supervising technician recommends
- B. At double the label rate for heavy infestations
- C. As the client asks, if the client signs a waiver
- D. In accordance with its label and the regulation
No person may use a pesticide except in accordance with its label and O. Reg. 63/09. The label is a legal document.
7For an indoor fumigation with a Class B fumigant gas, when must written notice be delivered?
- A. Within 7 days after the fumigation ends
- B. At least 24 hours and no more than 7 days before
- C. Only on the morning of the fumigation
- D. At least 30 days before the fumigation, by registered mail
Notice goes to the owner, adult occupants, nearby buildings, the medical officer of health, police and fire department at least 24 hours but not more than seven days before the fumigation.
8What is the main purpose of sticky traps in a cockroach program?
- A. To eliminate a large infestation without other steps
- B. To attract roaches from neighbouring units for removal
- C. To replace sanitation in restaurants and kitchens
- D. To show where roaches are so treatment can be focused
Traps, including sticky traps, help show where cockroaches are so control efforts can be focused there.
9What is the preferred use for rinse water from triple-rinsing a container?
- A. Pour it onto gravel behind the building
- B. Keep it in the empty container for later
- C. Pour it down the nearest storm sewer grate
- D. Add it to the spray tank and use it on the job
Rinse water must be disposed of under the waste rules unless it is emptied into the spray tank and used in the extermination.
10How many technicians or trainees may one exterminator supervise at the same time in normal paid work?
- A. No more than ten
- B. No more than three
- C. No more than seven
- D. No more than five
An exterminator may not supervise more than three technicians or trainees at once. Exceptions exist for unpaid group training and mosquito larviciding under permit (up to seven).

About the test

About the Ontario Pesticide Exterminator Exam – Core and Structural (OPT&C)

In Ontario, the Ministry of the Environment, Conservation and Parks (MECP) regulates the sale, storage, use, transport and disposal of pesticides under the Pesticides Act and Ontario Regulation 63/09. Unless exempt, you need an exterminator licence to apply pesticides commercially on property you do not own or farm. There are three types of exterminator licence (structural, land and water), divided into licence categories such as Structural, Termite and Landscape.

New exterminators certify through Ontario Pesticide Training and Certification (OPT&C) at the University of Guelph Ridgetown Campus. According to OPT&C, the certification exam has two multiple-choice parts of 50 questions each: the Core Manual exam (one hour, closed book) and the Licence Category Specific Module exam (one and a half hours, open book). You need 75% or more on both parts, then you apply to MECP for your licence within one year.

The certification fee is $214 for the Core and one category, and each extra category is $192 if taken within 12 months of passing the Core exam. If you fail, you have 12 months to rewrite, with at most two more attempts and no more than two attempts in any six-month period, at $82 per rewrite. The exterminator licence itself costs $90 and is valid for five years. You must be at least 16 with Grade 10 standing or equivalent to hold it.

Our eleven topics cover the legal and safety knowledge that every exterminator needs, plus the rules most relevant to structural work: licensing and the exam, pesticide classes and the law, technicians and supervision, labels, safe use and first aid, storage and transport, containers and spills, structural extermination rules, insect pests and integrated pest management, rodents, and running an extermination business. Calculations, application equipment and detailed toxicology from the Core Manual are not covered.

This site is independent. It is not affiliated with MECP, OPT&C or the University of Guelph, and our practice tests do not certify you. The regulation and fees can change, so check ontario.ca and ontariopesticide.com before your exam, and always follow the label of the product you are using.

Study plan

How to prepare

1Register with OPT&C early so your Core Manual and category module arrive with time to study; you must attempt the exam within 12 months of applying.
2Learn the licensing system: who needs an exterminator, operator or vendor licence, the three licence types and what the Structural class may and may not use.
3Memorize the pesticide classes: federal Domestic, Commercial, Restricted and Manufacturing, and Ontario Classes A to E.
4Practise reading a real label: find the registration number, signal words, directions for use, first aid and toxicological information.
5Know the supervision rules: what technicians and trainees may not do, weekly visits, written instructions and the one-to-three ratio.
6Study storage, transport, container rinsing and spill reporting, including Sign G, the 2.5 cm empty rule and the Spills Action Centre.
7Review structural pests: cockroach, carpenter ant, bed bug and rodent biology, inspection signs and integrated control.
8Take the 50-question mock exams under a 60-minute limit, without notes, like the closed-book Core exam. Aim for 42 or more before your real exam.

FAQ

Ontario Pesticide Exam test questions people ask

How many questions are on the Ontario pesticide exam?

OPT&C says the certification exam has two parts of 50 multiple-choice questions each: the Core Manual exam and the Licence Category Specific Module exam.

What is the pass mark?

You need 75% or more on both the Core exam and the category module exam. On a 50-question part, that is at least 38 correct.

Is the exam open book?

The Core Manual exam is one hour and closed book. The Licence Category Specific Module exam is one and a half hours and open book.

How much does it cost?

OPT&C lists $214 for the Core and one licence category, $192 for each additional category within 12 months, and $82 for each rewrite. The MECP exterminator licence is $90 for five years.

What happens if I fail?

You have 12 months after your first attempt to rewrite, with at most two more attempts and no more than two in any six-month period. After that you can reapply as a new applicant one year after your first attempt.

Does this cover the Structural category?

Yes, partly. We cover the legal rules for structural exterminations and the common structural pests from Health Canada's guidance. The category module's detailed content is in the OPT&C manual, which we do not copy.

Are these the real exam questions?

No. The OPT&C exams are not published. Every question here is original and written from O. Reg. 63/09, the federal Pest Control Products Regulations, Health Canada guidance and the OPT&C information guide.

Do technicians take this exam?

No. Technicians complete a ministry-approved pesticide safety course and practical training instead, and must work under a licensed exterminator's supervision. This exam is for people becoming licensed exterminators.

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