What if a container is refilled with a different chemical?

The old label must be removed or completely overwritten and a new, accurate label applied before the container is used. Leaving the previous label in place actively misleads workers and is a violation.

What are the penalties for unlabeled secondary containers?

A serious labeling violation of 29 CFR 1910.1200 can exceed $16,000 per instance, and repeated unmarked containers can escalate to willful penalties past $165,000. Secondary container labeling is a frequent inspection finding.

Who is responsible for labeling secondary containers?

The employer is responsible for ensuring workplace containers stay labeled, and any worker who transfers a chemical is responsible for labeling the new container immediately. Training must make this expectation clear.

How accurate is OSHA Scan at detecting unlabeled containers?

OSHA Scan identifies decanted secondary containers and reads their labels, flagging spray bottles, buckets, and jars that lack a product identifier or hazard information. It cites 29 CFR 1910.1200 so unmarked containers are caught during a routine photo review.

OSHA Scan

The Nameless Bottle Is the Most Dangerous One on Site

If it left its original container, it needs a label

Chemicals get poured into spray bottles, buckets, and jars every day — and the moment they leave their labeled original, the hazard information can vanish. An unmarked secondary container invites a worker to drink acid, spray solvent near a flame, or grab the wrong product entirely. OSHA Scan reviews your photos to spot decanted, unlabeled containers and reminds you exactly what the Hazard Communication Standard requires before that bottle is ever picked up.

A secondary container hazard exists when a chemical is transferred out of its original, labeled packaging into another container — a spray bottle, bucket, jar, or drum — without the required workplace label. OSHA allows an unlabeled portable container only when it is used immediately by the worker who filled it and emptied by the end of that same shift; anything else must carry at least the product identifier and hazard information.
On real sites this appears as a row of identical spray bottles marked only with a marker scrawl or nothing at all, a five-gallon bucket of solvent left overnight, or a water bottle repurposed to hold a cleaning acid. It also shows up when a container is refilled with a different chemical but keeps its old label, actively misdirecting anyone who reads it.
The hazard is that a secondary container hides its contents. A worker cannot tell corrosive from water, flammable from inert, and there is no pictogram to warn them. Because these containers multiply quickly on benches and in cabinets, a fast photo review of work areas is one of the most reliable ways to catch them.

What is a secondary container?

A secondary container is any container a chemical is transferred into from its original labeled packaging — a spray bottle, bucket, jar, or drum. Under HazCom it generally must carry a workplace label with the product identifier and hazard information.

When can a secondary container be left unlabeled?

Only when it is a portable container into which a chemical is transferred for the immediate use of the worker who filled it, and it is emptied by the end of that same shift. If the container is stored, shared, or kept overnight, it must be labeled.

What must a secondary container label include?

At minimum it needs the product identifier and words, pictures, or symbols that convey the general hazard information. Many employers use a full GHS-style workplace label with the signal word and pictograms for consistency with the SDS.

Can I reuse a food or beverage container for chemicals?

No. Using food or drink containers for chemicals is a serious hazard because it invites accidental ingestion, and it undermines the labeling requirement. Always use dedicated, clearly labeled containers intended for chemical use.