Ontario Pesticide Exam overview

Ontario Pesticide Exam: Reading the pesticide label

The principal and secondary display panels, registration numbers, signal words and symbols, first aid and toxicological information, restricted uses and the notice to user.

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Reading the pesticide label · Question 1Score 0/0

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

Study reference: Ontario Pesticides Act, O. Reg. 63/09, OPT&C and Health Canada (Oct 2026), Ch. 4 Reading the pesticide label — Pest Control Products Regulations ss. 25–29 and Schedule 3; Nova Scotia Understanding the Pesticide Label

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

    1. The product is safe to use without any protective gear
    2. The product was made in Canada by a licensed operator
    3. The product can be used on any pest in any location
    4. Health Canada has reviewed and registered the product
  2. What must the FIRST AID section tell you to bring when you seek medical help?

    1. The receipt showing where the product was purchased
    2. A sample of the treated surface in a sealed bag
    3. The label or product name and registration number
    4. Your exterminator licence and the job work order
  3. Which information is required on the principal display panel?

    1. The detailed directions for use
    2. The full first aid instructions
    3. The toxicological information for doctors
    4. Signal words and precautionary symbols
  4. Which three signal words show the degree of hazard on a pesticide label?

    1. Caution, warning and danger
    2. Low, medium and high
    3. Notice, alert and stop
    4. Mild, moderate and severe
  5. How are the restricted uses shown on a RESTRICTED-class product label?

    1. In red ink on the principal display panel only
    2. In a boxed RESTRICTED USES section, secondary panel
    3. On a separate card kept by the licensed vendor at the store
    4. In the toxicological information section only
  6. What does the NOTICE TO USER on every label say?

    1. The product is guaranteed to be harmless to pets
    2. The product may be resold only by vendors
    3. Using the product against the label is an offence
    4. The maker is not responsible for any misuse
  7. Who is the TOXICOLOGICAL INFORMATION section of the label mainly written for?

    1. The pesticide vendor at the store counter
    2. Medical personnel treating a poisoning
    3. The ministry inspector checking records
    4. The building owner signing the work order
  8. What does the guarantee statement on a label tell you?

    1. The refund policy if the product fails
    2. How long the product is guaranteed to work
    3. The minimum number of pests it will kill
    4. The percentage of each active ingredient
  9. A pesticide label is divided into which two parts?

    1. A product panel and a separate SDS booklet
    2. An English panel and a French panel only
    3. A front safety sheet and a back price sheet
    4. A principal and a secondary display panel
  10. A store offers a bed bug spray with no PCP number on it. What should you do?

    1. Use it at half the rate shown on its container
    2. Use it if the seller says it is all natural
    3. Use it only on mattresses and box springs, never on furniture
    4. Not use it, since unregistered pesticides are illegal
  11. When should you read a pesticide label?

    1. Before buying it and before every use
    2. Only the first time you ever use it
    3. Only if something goes wrong on the job
    4. Only when the product is new to the market
  12. How does the registration number appear on a Canadian pesticide label?

    1. REG. NO. followed by the number and P.C.P. Act
    2. DIN followed by the number and Food and Drugs Act
    3. UN followed by the number and the hazard class
    4. LOT followed by the batch number and expiry date
  13. Under which heading on the label do you find application rates, timing and limitations?

    1. TOXICOLOGICAL INFORMATION
    2. DIRECTIONS FOR USE
    3. PRINCIPAL DISPLAY PANEL
    4. NOTICE TO USER

Reading the pesticide label: 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 ↗

The label

  • Every registered product has a principal display panel and a secondary display panel.
  • The principal display panel shows the product name, type, physical form, class designation, hazard symbols and signal words, "READ THE LABEL BEFORE USING", the active ingredient(s) and concentration, the registration number, net quantity, the registrant and a Canadian contact.
  • The registration number appears as "REG. NO. (number) P.C.P. Act"; it shows Health Canada has reviewed and registered the product.
  • Signal words and precautionary symbols come from the regulations' schedule: caution, warning and danger, plus symbols for corrosive, explosive, flammable and poison.
  • The secondary panel carries DIRECTIONS FOR USE (rates, timing, frequency, limitations), PRECAUTIONS, FIRST AID, TOXICOLOGICAL INFORMATION, storage and disposal information.
  • First aid sections must tell users to take the container, label or product name and registration number when seeking medical help.
  • Toxicological information is written for medical staff: antidotes or "Treat symptomatically", symptoms and other components that affect treatment.
  • Every label carries a NOTICE TO USER: using the product inconsistently with the label is an offence under the Pest Control Products Act.
  • RESTRICTED products show a boxed "RESTRICTED USES" section on the secondary panel.
  • When part of the label is in a leaflet, the main panel says to read the attached or accompanying brochure before using.

Nova Scotia Environment, Understanding the Pesticide Label (2010); Health Canada pest control tips

  • Read the label before buying and again before every use.
  • The guarantee lists the percentage of each active ingredient, the chemical that controls the pest.
  • Not every pesticide works on every pest; make sure the label names your pest and site.
  • Look for a PCP number; a product without one is unregistered and illegal to use in Canada.

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