GHS Label Requirements: What OSHA Expects on Every Container

What Are GHS Label Requirements?

GHS labels are standardized chemical labels required by OSHA under the Hazard Communication Standard (29 CFR 1910.1200). Every container of hazardous chemicals in your workplace — from 55-gallon drums to spray bottles — must have a label that tells workers exactly what's inside and what dangers it poses. (Not sure what HazCom is? Start with [What Is HazCom?](/blog/what-is-hazcom))

GHS stands for the Globally Harmonized System of Classification and Labelling of Chemicals. Before GHS, chemical labels in the U.S. varied wildly — different formats, different symbols, no consistency. A worker trained on one manufacturer's labels couldn't necessarily read another's. GHS fixed that by creating a single, universal labeling system that looks the same whether the chemical came from Texas or Tokyo.

OSHA adopted GHS labeling requirements as part of the 2012 HazCom update and strengthened them again with the HazCom 2024 final rule. If your labels still follow the old pre-GHS format, you're out of compliance.

The 6 Required Elements on Every GHS Label

Every GHS-compliant chemical label must include these six elements. Missing any one of them can result in an OSHA citation.

1. Product Identifier

The product identifier is the name or number used to identify the hazardous chemical. This must match the name on the corresponding [Safety Data Sheet (SDS)](/blog/what-is-sds) — if the SDS calls it "Methyl Ethyl Ketone," the label can't just say "MEK" without also including the full name.

For single substances, the product identifier must include: - The chemical name - The CAS (Chemical Abstracts Service) number or other common identifier

For mixtures, the identifier can be: - The product or trade name - The chemical names of all ingredients that contribute to the hazard classification

2. Signal Word

The signal word indicates the overall severity of the hazard. There are only two options:

• DANGER — used for more severe hazard categories (e.g., acutely toxic, flammable gas Category 1)
• WARNING — used for less severe hazard categories (e.g., harmful if swallowed, skin irritant)

Only one signal word appears on a label. If a chemical qualifies for both DANGER and WARNING across different hazard categories, DANGER takes precedence. The signal word is never used alone — it always appears with the corresponding hazard statements and pictograms.

3. Hazard Statements

Hazard statements describe the nature and severity of the hazard. Each statement has a standardized H-code:

A single chemical can have multiple hazard statements. A solvent might carry H225 (Highly flammable liquid), H319 (Causes serious eye irritation), and H336 (May cause drowsiness) all on the same label. Every applicable hazard statement must appear — you can't pick and choose.

4. Pictograms

GHS pictograms are the red diamond-shaped symbols that provide instant visual identification of hazard types. There are 9 standardized pictograms:

Each pictogram is a black symbol on a white background inside a red diamond border. On workplace labels, they must be clearly visible and not obscured by other label information.

5. Precautionary Statements

Precautionary statements tell workers how to safely handle, store, and dispose of the chemical, and what to do in case of exposure. They fall into four categories:

• Prevention (P200s) — How to avoid exposure: "Wear protective gloves," "Keep away from heat/sparks"
• Response (P300s) — What to do if exposure occurs: "IF INHALED: Remove person to fresh air," "Rinse skin with water"
• Storage (P400s) — How to store safely: "Store in a well-ventilated place," "Keep container tightly closed"
• Disposal (P500s) — How to dispose of the chemical and container: "Dispose of contents/container in accordance with local regulations"

Manufacturers select the applicable P-codes based on the chemical's hazard classification. Labels can have a long list of precautionary statements — a single product might carry 10-15 of them.

6. Supplier Information

The label must include the name, address, and telephone number of the chemical manufacturer, importer, or responsible party. This tells workers and safety managers who to contact for additional information or in an emergency.

Secondary Container Labels: Where Most Violations Happen

Here's where businesses get caught: secondary container labeling.

When you transfer a chemical from its original container into a different container — pouring a cleaner into a spray bottle, decanting a solvent into a smaller can, mixing a diluted solution — that new container needs a label too.

OSHA requires secondary container labels to include, at minimum: - Product identifier (matching the SDS) - Hazard information — either the full GHS label elements or words, pictures, or symbols that provide the same hazard information

The only exception: if the chemical will be used immediately and entirely by the person who transferred it, within the same work shift, and they remain in the area. The moment you walk away, set it down for later, or another worker might encounter it — it needs a label.

This is one of the most commonly cited HazCom violations. Inspectors specifically look for unlabeled spray bottles, buckets, and containers. The fix is simple: label everything, every time.

GHS Label Changes Under HazCom 2024

OSHA's 2024 update to the Hazard Communication Standard (aligning with GHS Revision 7) introduced several labeling changes:

New hazard categories that need labels: - Chemicals under pressure — a new category separate from gases under pressure - Desensitized explosives — explosives that have been diluted or mixed to reduce sensitivity

Small container labeling (under 100 mL): - Labels can now use a fold-out or pull-out format if space is limited - Certain elements can be placed on an attached tag if they don't fit on the container - The product identifier, pictograms, signal word, and supplier info must still be on the immediate container

Concentration ranges: - Manufacturers can now list concentration ranges (e.g., "10-15%") for hazardous ingredients on labels instead of exact percentages - This gives manufacturers more flexibility while still communicating hazard information

Compliance deadlines for labeling updates: - January 19, 2026 — Updated labels required for reclassified pure substances - July 19, 2027 — Updated labels required for reclassified mixtures - January 19, 2028 — All employers must have updated labels in the workplace

If you're receiving chemicals from manufacturers who haven't updated their labels yet, you're still responsible for ensuring your workplace labels meet the current standard.

How to Audit Your Chemical Labels

A label audit doesn't have to be complicated. Walk your facility with this checklist:

For every original container, verify: - [ ] Product identifier matches the SDS on file - [ ] Signal word is present (DANGER or WARNING) - [ ] At least one GHS pictogram is visible and not defaced - [ ] Hazard statements are legible - [ ] Precautionary statements are present - [ ] Supplier information is on the label - [ ] Label is not damaged, faded, or covered by other stickers

For every secondary container, verify: - [ ] Product identifier is present - [ ] Hazard information is present (words, pictures, or symbols) - [ ] Label matches the chemical actually in the container (mislabeling is worse than no label)

Common problem areas to check: - Maintenance closets and custodial areas - Break room cleaning supplies - Outdoor storage and loading docks - Spray bottles and transfer containers - Chemicals near expiration or with faded labels

OSHA Penalties for Labeling Violations

Labeling violations fall under the broader Hazard Communication Standard citations. Current penalty amounts:

Each unlabeled or improperly labeled container can be a separate violation. An inspector who finds 10 unlabeled secondary containers could issue 10 separate citations. The math adds up fast.

Labels and Your Chemical Inventory

GHS labels and your chemical inventory are connected. Your inventory should include the product identifier exactly as it appears on the label and SDS. When a new chemical arrives, the label is your first source of hazard information — before you even open the SDS.

A well-maintained [chemical inventory](/blog/ehs-chemical-inventory-management-guide) system tracks: - What chemicals you have (matching label product identifiers) - Where they're located - What hazards they present (from the label and SDS) - Whether the SDS is current

When these systems are connected — inventory, SDS management, and labeling — keeping everything in sync becomes manageable. When they're disconnected (a spreadsheet here, a binder there, labels maintained separately), things drift out of compliance. Digital chemical inventory platforms that link labels, SDSs, and inventory records are becoming the standard way to keep everything aligned.

Key Takeaways

• Every chemical container needs a GHS-compliant label with 6 required elements: product identifier, signal word, hazard statements, pictograms, precautionary statements, and supplier info
• Secondary containers are the #1 source of labeling violations — label everything, every time
• 9 GHS pictograms provide universal visual hazard identification
• HazCom 2024 added new hazard categories and small container provisions, with compliance deadlines through January 2028
• Labels, SDSs, and your chemical inventory must all use the same product identifiers — keeping them connected prevents compliance gaps
• Audit regularly — walk your facility, check every container, fix issues before an inspector finds them