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WHMIS: Workplace labels and other identification

When a workplace label is needed (decanting, products made on site, lost labels), the decanting exceptions, what a workplace label must say, and other means of identification.

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Workplace labels and other identification · Question 1Score 0/0

Your company requires full labels on every decanted container, even ones used right away. Is this allowed?

Study reference: CCOHS OSH Answers: WHMIS fact sheets (revised 2026-05-28), Ch. 7 WHMIS – Labels — Types of labels, workplace labels, other identification

All 15 questions in this test

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

  1. Your company requires full labels on every decanted container, even ones used right away. Is this allowed?

    1. Only if the supplier agrees in writing
    2. No, only Health Canada can set label rules
    3. No, it conflicts with WHMIS law
    4. Yes, companies may go beyond WHMIS minimums
  2. The supplier label on a drum has been torn and can no longer be read. What must happen?

    1. Write the date on the drum
    2. Move the drum to a storage room and keep using it
    3. Put a new supplier or workplace label on it
    4. Keep using the drum as is
  3. Who is responsible for making sure the correct workplace labels are used?

    1. The employer
    2. The delivery company
    3. Health Canada
    4. The supplier
  4. During a WHMIS workplace inspection, which question about labels is on CCOHS's sample checklist?

    1. Are all labels the same size on every product in stock?
    2. Are labels printed in a single colour?
    3. Are labels signed by each worker?
    4. Are decanted products not used immediately labelled?
  5. Which item is required on a workplace label?

    1. A product name matching the SDS
    2. The worker's employee number
    3. The supplier's full mailing address
    4. The product's price
  6. Which situation requires a workplace label?

    1. A hazardous product made at the workplace and used there
    2. A sealed product kept in its supplier container
    3. A product sitting on a supplier's truck
    4. A product in a store for home use
  7. You pour a small amount of solvent into a cup and use all of it right away. Is a workplace label needed on the cup?

    1. Yes, always, for any container
    2. Only if the solvent is flammable
    3. Yes, unless the cup is glass
    4. No, not if it is used immediately
  8. You decant a product that only you will use, all within this shift. What is the minimum identification on the container?

    1. The product identifier (name)
    2. A full supplier label
    3. The supplier's phone number only
    4. Nothing at all
  9. Your workplace identifies some hazardous products with colour-coded tags instead of labels. What must workers receive?

    1. A copy of the tag manufacturer's invoice
    2. A new supplier label for each tag
    3. Training on how to read that system
    4. Nothing, since tags need no explanation
  10. You decanted a product for your own use, but a co-worker will also use it later. What is required?

    1. Only the product name
    2. Nothing, since you poured it
    3. A full workplace label
    4. A note on the whiteboard
  11. An inspection compares the label and the SDS for the same product. What should be checked?

    1. That the information on the two matches
    2. That the SDS is shorter than the label
    3. That both use the same font
    4. That both are printed on the same day
  12. What are the two main types of WHMIS labels?

    1. Supplier labels and workplace labels
    2. Danger labels and warning labels
    3. Shipping labels and price labels
    4. Indoor labels and outdoor labels
  13. You pour a cleaner from its original jug into a spray bottle that will be used by the whole crew over the week. What does the spray bottle need?

    1. A workplace label
    2. No label at all
    3. Only the worker's initials
    4. A copy of the shipping invoice
  14. Who sets the specific rules for workplace labels?

    1. The product's manufacturer
    2. Health Canada's supplier rules under the Hazardous Products Act
    3. Each worker individually
    4. The province or territory, or the Canada Labour Code
  15. Besides the product name, what must a workplace label give?

    1. Safe handling precautions and a reference to the SDS
    2. The hazard class and category numbers
    3. A bilingual list of ingredients
    4. The supplier's 24-hour emergency hotline number only

Workplace labels and other identification: 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 ↗

When a workplace label is required

  • When a hazardous product is produced (made) at the workplace and used there.
  • When it is decanted (transferred, poured) into another container.
  • When a supplier label is lost or becomes illegible.

When a workplace label is not necessary

  • Product poured into a container and used immediately.
  • Product "under the control of the person who decanted it": the person who poured it is the only user and it is used within one shift — a full workplace label may not be needed, but the container must still show the product identifier (name).
  • If not used right away, or more than one person controls it, a full workplace label is required.
  • Companies may set stricter rules than WHMIS; workplace label rules are set by the province/territory (or Canada Labour Code for federal workplaces).

Workplace label content

  • Product name matching the SDS; safe handling precautions (may include pictograms or other supplier label information); a reference to the SDS if available.
  • Ontario guide adds: no fixed format/language; precautions may be in pictures, words, pictograms, combined with worker education.

Other identification

  • Products can also be identified with a mark, sign, stamp, sticker, seal, ticket, tag or wrapper (attached, imprinted, stencilled, embossed). Workers must be trained on any such alternative system.

Inspections checklist (labels)

  • Containers and labels in good condition; no unlabelled hazardous products; decanted products not used immediately by the person who decanted them have workplace labels; vessels and pipelines labelled per WHMIS; SDS and label information match.

Pipes, vessels, placards (for context)

  • Products in pipes, process/reaction vessels, tank cars etc.: identified by any clear means (colour coding, labels, placards, piping diagrams, signs) plus worker education.
  • Placard allowed for products not in a container etc.; placard carries workplace label information.

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