Ontario Pesticide Exam overview

Ontario Pesticide Exam: Technicians, trainees and supervision

Who technicians and trainees are, what they may not do, written instructions, weekly visits, the one-to-three supervision ratio and training records.

  • 13 questions
  • Topic drill
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Technicians, trainees and supervision · Question 1Score 0/0

For how many days back must a technician keep signed written instructions available at sites?

Study reference: Ontario Pesticides Act, O. Reg. 63/09, OPT&C and Health Canada (Oct 2026), Ch. 3 Technicians, trainees and supervision — O. Reg. 63/09 ss. 46–48, 50; OPT&C Information Guide

All 13 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

  1. For how many days back must a technician keep signed written instructions available at sites?

    1. One year
    2. 30 days
    3. 90 days
    4. 7 days
  2. Which of these may a technician NOT do?

    1. Carry the signed written instructions for the job
    2. Apply a Class C insecticide under supervision
    3. Follow the label directions for the product
    4. Choose which pesticide to use on a job
  3. A technician needs to use a Class C rodenticide that must be mixed before use. What is required?

    1. A permit from the ministry
    2. Written permission from the client
    3. Nothing extra, since it is Class C
    4. A licensed exterminator must be present
  4. What must a technician carry or have available at the site?

    1. A letter of reference from the employer
    2. A copy of the operator's insurance certificate
    3. Proof of the safety course passed in the last 24 months
    4. The original pesticide invoice from the product supplier
  5. How closely must a trainee be supervised?

    1. The supervisor must be on site at all times
    2. Phone contact during the job is enough
    3. A weekly site visit is enough
    4. A technician may supervise instead
  6. Which item must appear on a technician's written instructions for a job?

    1. The technician's home address and age
    2. The price charged for the treatment
    3. The pesticide's name and registration number
    4. The client's credit card and billing details
  7. Which class of pesticide may technicians and trainees never use?

    1. Class D
    2. Class B
    3. Class C
    4. Class E
  8. What is a trainee under Ontario's pesticide rules?

    1. A student enrolled at the OPT&C Ridgetown campus
    2. A client who helps prepare the home for treatment
    3. An assistant who has not finished the approved safety course
    4. A licensed exterminator in their first year of work
  9. How long must an employer keep the training record for a supervised worker?

    1. At least two years after the worker leaves
    2. At least six months after hiring
    3. Until the end of the current calendar year
    4. Only while the worker is still employed
  10. How often must a supervising exterminator visit a technician at a job site?

    1. At least once every day
    2. Only on the technician's first day with the company
    3. At least once each week the technician works
    4. At least once a month
  11. What makes a worker a technician?

    1. Holding an operator licence for one full year
    2. A safety course in the last 24 months plus practical training
    3. Passing the Core exam but not the category module
    4. Two years of work experience with any licensed pest company
  12. When may a trainee apply a Class C pesticide?

    1. Only with a licensed exterminator present
    2. When a technician is supervising
    3. When the job sheet names the product
    4. After one month of employment
  13. How many technicians or trainees may one exterminator supervise at the same time in normal paid work?

    1. No more than ten
    2. No more than three
    3. No more than seven
    4. No more than five

Technicians, trainees and supervision: key rules to remember

Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗

Trainees and technicians

  • A trainee is an assistant to a licensed exterminator who has not yet completed an approved pesticide safety course and practical training; a trainee always needs direct supervision.
  • A technician has completed an MECP-approved pesticide safety course within the previous 24 months and received practical training from a licensed exterminator.

What supervisees may not do

  • Neither technicians nor trainees may select or recommend a pesticide, or choose the method or rate of application.
  • Neither may use a Class B pesticide.
  • Technicians may use a Class C rodenticide that needs mixing or dilution only in the presence of a licensed exterminator.
  • Trainees may use Class C or D pesticides only in the presence of a licensed exterminator.
  • A technician must have written instructions (work order, invoice or job sheet) at the site showing the location, the pest, the pesticide name and registration number, the supervisor's name and licence number, and a job identifier.
  • Technicians keep all written instructions signed by the supervisor in the last 30 days at the site.
  • A technician carries proof of the safety course taken within the previous 24 months; a trainee carries the employer's trainee ID.

Supervision

  • The supervising exterminator gives direction, ensures safe and legal work, ensures training and keeps a training record.
  • The employer keeps the training record for at least two years after the supervisee leaves.
  • The supervisor must visit a technician (or supervised exterminator) at a site at least once each week the supervisee works, and sign and date the written instructions.
  • A trainee's supervisor must be present at the site at all times while the trainee works.
  • An exterminator may not supervise more than three technicians or trainees at the same time (exceptions: unpaid group training, and up to seven for mosquito larviciding under permit).
  • Employers need at least one licensed exterminator for every three or fewer technicians or trainees.
  • Other employees may not perform or assist in exterminations, may handle pesticides only in sealed containers, and may handle empty Class B or C containers only after rinsing.

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