For how many days back must a technician keep signed written instructions available at sites?
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.
- No sign-up
- Every answer explained
- Independent · not a government site
- 13 questions
- Topic drill
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.
For how many days back must a technician keep signed written instructions available at sites?
- One year
- 30 days
- 90 days
- 7 days
Which of these may a technician NOT do?
- Carry the signed written instructions for the job
- Apply a Class C insecticide under supervision
- Follow the label directions for the product
- Choose which pesticide to use on a job
A technician needs to use a Class C rodenticide that must be mixed before use. What is required?
- A permit from the ministry
- Written permission from the client
- Nothing extra, since it is Class C
- A licensed exterminator must be present
What must a technician carry or have available at the site?
- A letter of reference from the employer
- A copy of the operator's insurance certificate
- Proof of the safety course passed in the last 24 months
- The original pesticide invoice from the product supplier
How closely must a trainee be supervised?
- The supervisor must be on site at all times
- Phone contact during the job is enough
- A weekly site visit is enough
- A technician may supervise instead
Which item must appear on a technician's written instructions for a job?
- The technician's home address and age
- The price charged for the treatment
- The pesticide's name and registration number
- The client's credit card and billing details
Which class of pesticide may technicians and trainees never use?
- Class D
- Class B
- Class C
- Class E
What is a trainee under Ontario's pesticide rules?
- A student enrolled at the OPT&C Ridgetown campus
- A client who helps prepare the home for treatment
- An assistant who has not finished the approved safety course
- A licensed exterminator in their first year of work
How long must an employer keep the training record for a supervised worker?
- At least two years after the worker leaves
- At least six months after hiring
- Until the end of the current calendar year
- Only while the worker is still employed
How often must a supervising exterminator visit a technician at a job site?
- At least once every day
- Only on the technician's first day with the company
- At least once each week the technician works
- At least once a month
What makes a worker a technician?
- Holding an operator licence for one full year
- A safety course in the last 24 months plus practical training
- Passing the Core exam but not the category module
- Two years of work experience with any licensed pest company
When may a trainee apply a Class C pesticide?
- Only with a licensed exterminator present
- When a technician is supervising
- When the job sheet names the product
- After one month of employment
How many technicians or trainees may one exterminator supervise at the same time in normal paid work?
- No more than ten
- No more than three
- No more than seven
- 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.
Study the Technicians, trainees and supervision rules as flashcards →
Other topics
- Licences, certification and the examHow Ontario licenses vendors, exterminators and operators, the land, structural and water licence types, OPT&C certification, the two-part exam and licence rules.
- Pesticide classes and the lawWhat counts as a pesticide, federal product classes, Ontario Classes A to E, banned pesticides, using products only as labelled and the cosmetic pesticide ban.
- Reading the pesticide labelThe principal and secondary display panels, registration numbers, signal words and symbols, first aid and toxicological information, restricted uses and the notice to user.
- Safe use, protective equipment and first aidProtective clothing, applying at the label rate, keeping people out and re-entry, indoor precautions, weather limits outdoors, washing up and poisoning first aid.
- Storage, vehicles and transportOriginal and secondary containers, storage area rules, Sign G, vehicles left unattended, fire department notices and keeping pesticides away from food and household goods in transport.
- Containers, spills and disposalTriple and jet rinsing, when a container is empty, recycling and disposal, damaged containers, protecting water sources and reporting spills and thefts to the Spills Action Centre.
- Structural extermination rulesWhat the Structural and Termite licences allow, Class D exemptions and rental units, special rodenticide rules, suspensions in air and Sign B, fumigation notices, airing out and Sign A.
- Insect pests and integrated pest managementIdentifying and controlling cockroaches, carpenter ants, bed bugs, fleas and wasps with sanitation, exclusion, monitoring and correctly used pesticides.
- Rats and miceIdentifying house mice, deer mice and rats, signs of infestation, rodent-proofing, trapping, bait stations and rodenticides, safe cleanup and the regulation's rules for acute rodenticides.
- Operating an extermination businessWho an operator may employ, the one-exterminator-per-three rule, duties to other staff, vehicle markers, insurance amounts and licence renewal.