What Goes on a Hazard Communication Label: The 6 Elements OSHA Requires

A hazard communication label has one job: to tell a worker what a chemical is and how it can hurt them before they touch it. Under OSHA's Hazard Communication Standard, a shipped chemical container has to carry six specific pieces of information. That is the whole checklist. 

If you run a plant, warehouse, or maintenance crew, knowing these six elements lets you spot an incomplete label at a glance and fix it before an auditor or an injured worker does. This post covers what belongs on the hazard communication labels, how workplace containers differ, and how to keep every marking readable.

The six elements every shipped chemical label needs

Every shipped chemical container covered by OSHA's Hazard Communication Standard (HazCom, 29 CFR 1910.1200) must carry six label elements. Miss one, and the label is incomplete. 

These come from the Globally Harmonized System (GHS), which OSHA adopted so labels look the same across suppliers and borders. 

1. Product identifier. The chemical name or number that matches the safety data sheet (SDS). It ties the container back to its full hazard record, so the two never drift apart.
2. Signal word. One word that sets the alarm level. "Danger" marks the more severe hazards, and "Warning" marks the less severe ones. A label carries only one signal word, never both.
3. Pictogram(s). The red-bordered diamond symbols that show the hazard type at a glance, such as the flame for flammables or the corrosion symbol for corrosives. One chemical can require several.
4. Hazard statement(s). Set phrases assigned to each hazard class, like "Causes severe skin burns and eye damage." The wording is fixed by the classification, not written freehand.
5. Precautionary statement(s). Plain instructions for handling, storage, response, and disposal, such as "Wear protective gloves" or "Keep away from heat."
6. Supplier information. The name, address, and phone number of the manufacturer, importer, or other responsible party. 

Get those six on the label, in legible form, and a shipped container meets the core requirement.

Workplace containers follow a shorter rule.

When a worker pours a chemical out of its original drum into a smaller container, that secondary container still needs a label, but the label is shorter. At a minimum, secondary container labels need two things: the product identifier and hazard information, shown through words, pictures, symbols, or a mix. 

Many facilities simply copy the full hazard communication labels to stay consistent, which is the safer habit. There is one narrow exemption. A container needs no label only when the chemical is used on the same shift, by the same person who filled it, and stays in that person's control the whole time.

Hazard communication labels are not DOT hazmat labels.

The label on a container inside your facility is not the same as the label on a package headed out on a truck. OSHA's HazCom rules govern chemicals as they are used and stored in the workplace. Confusing the two is a common reason facilities either over-label or leave gaps. 

What it covers	OSHA HazCom / GHS label	DOT hazmat label
Governing rule	29 CFR 1910.1200	49 CFR (Hazardous Materials Regulations)
Where it applies	Containers used and stored in the workplace	Packages moving in transport
Main symbols	GHS pictograms (red-bordered diamond)	Hazard class labels and placards (colored diamonds with class numbers)
Signal word	Danger or Warning	Not used
Who is responsible	Manufacturer or importer for shipped containers; employer for workplace containers	Shipper and carrier

 

If you handle both jobs, keep separate label stock for each so a transport marking never stands in for a workplace one. LabelMax splits these into distinct hazard labels and hazmat labels categories for that reason.

A label only counts while it stays readable.

A hazard communication label stops working the moment a worker cannot read it, and OSHA requires labels to stay legible for the life of the container. A faded signal word or a pictogram smeared by solvent is the same as no label at all. This is where material choice matters more than most teams expect. A tag that survives a dry storeroom can peel off a drum in a washdown bay within a week. 

Match the stock to the work zone: chemical-resistant film for splash and solvent areas, UV-stable vinyl for outdoor tanks, high-tack adhesive for drums and curved surfaces. Printing these in-house gives you control that most outsourced orders cannot. 

You print what you need, when you need it, and replace a worn GHS label the same day instead of waiting on a reorder. That keeps hazardous material labels consistent across every department, which is exactly what an auditor looks for.

FAQs

What is a hazard communication label?

A hazard communication label is the standardized warning attached to a container of hazardous chemicals under OSHA's Hazard Communication Standard. It tells workers what the chemical is and what hazards it presents. 

How many pictograms can one label have?

As many as the chemical's classification calls for. A single product can trigger several hazard classes at once, so a label might show the flame, corrosion, and health hazard symbols together. 

Do secondary containers need all six elements?

No. Secondary container labels need at least a product identifier and hazard information, not the full six. Still, many facilities copy the complete label for consistency and to reduce confusion on the floor. 

Is a hazard communication label the same as a DOT hazmat label?

No. HazCom labels follow OSHA rules for chemicals used and stored in the workplace, while DOT hazmat labels follow transport rules under 49 CFR. 

What should I do if a label becomes unreadable?

Replace it right away with a legible one that carries the same required information. OSHA holds employers responsible for keeping workplace labels readable, so a faded or peeling label needs to be reprinted, not ignored.

The bottom line

A compliant shipped label comes down to six elements: product identifier, signal word, pictograms, hazard statements, precautionary statements, and supplier information. Secondary containers need at least an identifier and the hazards, but the safest habit is to match the full label. 

Keep the workplace system separate from DOT transport labels, and make sure every marking stays legible, because a label nobody can read protects nobody. If you want to keep your facility audit-ready without waiting on outsourced orders, LabelMax can help you print durable hazard labels on demand. 

Request free samples, or connect with your free assigned expert for help choosing the right setup.