What does a PCP registration number on a product tell you?
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.
- 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. 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.
What does a PCP registration number on a product tell you?
- 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
- Health Canada has reviewed and registered the product
What must the FIRST AID section tell you to bring when you seek medical help?
- The receipt showing where the product was purchased
- A sample of the treated surface in a sealed bag
- The label or product name and registration number
- Your exterminator licence and the job work order
Which information is required on the principal display panel?
- The detailed directions for use
- The full first aid instructions
- The toxicological information for doctors
- Signal words and precautionary symbols
Which three signal words show the degree of hazard on a pesticide label?
- Caution, warning and danger
- Low, medium and high
- Notice, alert and stop
- Mild, moderate and severe
How are the restricted uses shown on a RESTRICTED-class product label?
- In red ink on the principal display panel only
- In a boxed RESTRICTED USES section, secondary panel
- On a separate card kept by the licensed vendor at the store
- In the toxicological information section only
What does the NOTICE TO USER on every label say?
- The product is guaranteed to be harmless to pets
- The product may be resold only by vendors
- Using the product against the label is an offence
- The maker is not responsible for any misuse
Who is the TOXICOLOGICAL INFORMATION section of the label mainly written for?
- The pesticide vendor at the store counter
- Medical personnel treating a poisoning
- The ministry inspector checking records
- The building owner signing the work order
What does the guarantee statement on a label tell you?
- The refund policy if the product fails
- How long the product is guaranteed to work
- The minimum number of pests it will kill
- The percentage of each active ingredient
A pesticide label is divided into which two parts?
- A product panel and a separate SDS booklet
- An English panel and a French panel only
- A front safety sheet and a back price sheet
- A principal and a secondary display panel
A store offers a bed bug spray with no PCP number on it. What should you do?
- Use it at half the rate shown on its container
- Use it if the seller says it is all natural
- Use it only on mattresses and box springs, never on furniture
- Not use it, since unregistered pesticides are illegal
When should you read a pesticide label?
- Before buying it and before every use
- Only the first time you ever use it
- Only if something goes wrong on the job
- Only when the product is new to the market
How does the registration number appear on a Canadian pesticide label?
- REG. NO. followed by the number and P.C.P. Act
- DIN followed by the number and Food and Drugs Act
- UN followed by the number and the hazard class
- LOT followed by the batch number and expiry date
Under which heading on the label do you find application rates, timing and limitations?
- TOXICOLOGICAL INFORMATION
- DIRECTIONS FOR USE
- PRINCIPAL DISPLAY PANEL
- 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.
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.
- Technicians, trainees and supervisionWho technicians and trainees are, what they may not do, written instructions, weekly visits, the one-to-three supervision ratio and training records.
- 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.