GHS labeling requirements for small manufacturers who repackage chemicals

Last updated 2026-07-09

What does OSHA actually require when you repackage a hazardous chemical?

Fill a hazardous chemical into a new container and you become the responsible party for its label. That is the whole rule, and it lives in OSHA's Hazard Communication Standard, 29 CFR 1910.1200, which adopted the Globally Harmonized System (GHS) in 2012 and finalized it for most employers by June 2016. ^[1]

The standard does not care whether you are a Fortune 500 chemical company or a five-person shop buying bulk cleaner and filling spray bottles for resale. Size is irrelevant. If the chemical is hazardous and it goes into a new container, you label it. Period.

OSHA's phrase is "chemical manufacturer, importer, or distributor." Repackage a product and you fit the definition of a chemical manufacturer, because you are producing a labeled product for someone else to handle. That status pulls in the full set of labeling duties, not the lighter downstream rules that apply to a shop that only uses chemicals in-house.

What are the 6 required GHS label elements for a repackaged chemical?

Every repackaged label needs six elements, listed in 29 CFR 1910.1200(f)(1): product identifier, signal word, hazard statements, pictograms, precautionary statements, and supplier information. Miss one and the label is noncompliant, full stop. ^[1]

#	Required Element	What It Means in Practice
1	Product identifier	The name or code that matches the Safety Data Sheet (SDS). Can be a trade name, chemical name, or code as long as it links to the SDS.
2	Signal word	Either "Danger" (severe hazard) or "Warning" (lesser hazard). Never both, never neither, for a hazardous chemical.
3	Hazard statement(s)	Standardized phrases assigned to each hazard class and category, e.g., "Causes serious eye damage." These are fixed text from Appendix C of the standard, not summaries you write yourself.
4	Pictogram(s)	The GHS diamond-border symbols: flame, skull, corrosion, and the rest. Download the official set from OSHA or the UN.
5	Precautionary statement(s)	Specific guidance on safe handling, storage, disposal, and first aid. Also from Appendix C; pick the ones that match your classification.
6	Supplier information	Name, address, and phone number of the chemical manufacturer, importer, or distributor. That is you, once you repackage.

All six go on the label attached to the container. If a container is too small to fit them legibly, OSHA lets some precautionary statements move to an attached tag or fold-out label, but the product identifier, signal word, and pictograms still have to appear on the container surface itself. ^[2]

Here is the trap. Small repackagers assume copying the original supplier's label is enough. It is not, for two reasons. You must list your own contact information as the new supplier. And if you changed the concentration or mixture at all, you may need to reclassify the hazard from scratch.

How do you classify the hazard so you know which statements and pictograms to use?

Classification comes before labeling. You cannot write a compliant label until you know which hazard categories your chemical falls into under GHS. OSHA's HazCom standard uses Appendix A for physical hazards and Appendix B for health hazards, each with numbered categories where Category 1 is the most severe. ^[1]

For a repackager, the practical starting point is the SDS from your upstream supplier. Section 2 of that SDS lists the GHS classification. Repackage at the same concentration without adding anything, and you can generally adopt the supplier's classification and pull the matching statements from OSHA's Appendix C.

Dilute it, blend it, or otherwise change it, and you have to reclassify. No workaround. A cleaner that is 30 percent sulfuric acid in the drum may drop into different hazard categories at 10 percent, and your label has to describe your actual product, not the one you bought.

OSHA published a free hazard classification guidance document for chemical manufacturers that walks each hazard class with worked examples. The Purple Book (the UN's Globally Harmonized System of Classification and Labelling of Chemicals) is the technical reference, now in its tenth revised edition. ^[3] Most small repackagers never need to buy it. The supplier SDS plus OSHA's appendices cover the common cases.

The broader hazard communication standard, including what your employees need to know beyond the label, is worth reading on its own.

Does the immediate-use exemption let you skip labeling?

Almost never, and this is the exemption that costs employers real citation money because they read it too generously.

29 CFR 1910.1200(f)(8) waives the label for "a portable container into which a hazardous chemical is transferred from a labeled container" when that container is "intended only for the immediate use of the employee who performs the transfer." ^[1]

Every word carries weight. Immediate use means used right now, by you, then emptied or disposed of. It does not mean used today, used later this shift, stored overnight, or handed to a coworker. OSHA's letters of interpretation have held the line here: once the container leaves the hands of the person who filled it, the exemption is gone. ^[2]

For repackagers, the exemption is a non-event. You fill containers that go to other employees, other departments, customers, or storage. None of that qualifies. Treat every container you fill as needing a full GHS label.

What size and format rules apply to the label itself?

The label has to be legible, prominently displayed, in English, and (for pictograms) bordered in red. Federal HazCom sets no minimum font size, but the label size scales with the container. The table below reflects the label-size guidance tied to container capacity in the GHS framework OSHA adopted.

Container Capacity	Suggested Minimum Label Size
3 fl oz (100 mL) or less	1 in x 2 in
More than 3 fl oz up to 3 pt (473 mL)	2 in x 3 in
More than 3 pt up to 1 gal	3 in x 4 in
More than 1 gal up to 5 gal	4 in x 6 in
More than 5 gal	6 in x 8 in

Pictograms need the red diamond border. OSHA is specific on this: black-border-only pictograms from older international GHS materials do not meet U.S. HazCom requirements. ^[8]

Languages beyond English are allowed and encouraged when your workforce or customers read them. You add another language. You never substitute one for English.

Font size gets no explicit federal minimum, though some state-plan standards may go further. The working test is legibility. An inspector who cannot read your label in normal lighting has grounds to cite it as inadequate even when all six elements are technically present.

What is a Safety Data Sheet and do repackagers have to provide one?

Yes. Under 29 CFR 1910.1200(g), chemical manufacturers and distributors must provide a compliant SDS with or before the first shipment of a hazardous chemical. ^[1] Repackage and distribute that chemical, even to another location of your own company, and you must have an SDS available.

An SDS has 16 sections prescribed by GHS. If you sell at the same concentration and composition as the original product, you can adopt the supplier's SDS and update it with your own company information in Section 1 (Identification). Change the formulation and you need to rewrite Section 2 (Hazard Identification) and probably touch Sections 3, 8, and others.

OSHA does not force you to build a novel SDS from scratch when the chemistry has not changed. But your name and contact have to be on it. Shipping the original supplier's SDS unmodified, with their name, is not compliant once you are the responsible party.

Free SDS authoring tools exist, and OSHA's site has a guidance document on SDS preparation. ^[4] For a small repackager doing straightforward dilutions of well-characterized chemicals, this is not a months-long project. A few hours with the supplier SDS and OSHA's guidance handles most cases.

How do OSHA penalties work for labeling violations, and what do inspectors actually look for?

OSHA rebuilt its penalty structure in 2016 and adjusts it for inflation every year. As of 2024, a serious violation tops out at $16,131, and a willful or repeated violation can reach $161,323, both figured per violation. ^[5] HazCom labeling violations are among the most frequently cited in the country. The agency's top-10 list has carried HazCom in most years since the standard was updated. ^[6]

In practice, a first-time citation for missing labels on a handful of containers at a small employer often settles in the $1,000 to $5,000 range. That number climbs fast when an inspector finds systemic problems: no written HazCom program, workers who cannot name the hazards of chemicals they use, or containers with no labels at all.

What inspectors look for in a repackaging operation:

• Unlabeled or partially labeled containers anywhere on site, including secondary containers that left the original packaging
• Labels showing the upstream supplier's name instead of the repackager's
• Pictograms printed black-and-white without red borders
• SDS files that are missing or belong to a different product version
• Training records that do not match the chemicals workers actually handle

The written Hazard Communication Program is separate from the label, but inspectors review it on the same visit. No program is its own citation. The hazard communication written program is a distinct compliance task from the labels themselves.

Are there special rules for small containers or multi-compartment packages?

Small containers are the genuinely tricky case. When a container physically cannot fit all required label information at a legible size, 29 CFR 1910.1200(f)(11) lets the product identifier, pictograms, and supplier contact stay on the container while the remaining elements move to a tag, pull-out insert, or attached document that travels with the container. ^[1]

This is a container-size accommodation, not a general small-business exemption. A 1-ounce vial of a corrosive sold inside a labeled box still needs the required elements tied to that vial.

For kits or multi-component products where several containers ship together, each container holding a hazardous chemical needs its own label. Labeling the outer box and leaving the inner containers bare does not work.

Hazardous waste under RCRA (EPA jurisdiction) carries its own labeling rules that run parallel to GHS. If your repackaged product becomes hazardous waste anywhere in the chain, you pick up a second rulebook under 40 CFR Part 262. ^[9] That sits outside OSHA's lane, but the overlap is worth knowing.

What does a written Hazard Communication Program need to cover for a repackager?

29 CFR 1910.1200(e) requires every employer with hazardous chemicals to keep a written Hazard Communication (HazCom) program. A repackager's program has to reach further than the basic employer version, because you carry manufacturer-level duties on top of the usual ones. ^[1]

At minimum, your written program describes:

• How you classify hazards for chemicals you produce or repackage
• How you create and update labels
• How you create and maintain SDS files
• How you keep SDS files accessible to employees throughout their shifts
• How you train employees on the HazCom standard and the specific chemicals in your workplace
• How you handle non-routine tasks involving hazardous chemicals
• How you communicate hazards to contractors working in your facility

The list of every hazardous chemical in the workplace has to be part of, or attached to, the written program. For a repackager, that list covers the chemicals you receive from suppliers and the products you create.

Want to build the written program without burning weeks on it? Tools like SafetyFolio's safety program generator produce a compliant starting template in about 15 minutes, which you then fit to your chemicals, procedures, and contacts. That saves real time for a shop with no safety director.

The program is a living document. Add a chemical to your product line, and you update both the program and the inventory list.

What training do employees need on GHS labels and SDSs?

29 CFR 1910.1200(h) requires training before an employee's first assignment to work with a hazardous chemical, and again whenever a new hazard shows up in the area. ^[1] The standard spells out the content:

• How to detect the presence or release of a hazardous chemical (visual clues, odor, monitoring)
• The physical and health hazards of the chemicals in the work area
• Steps employees can take to protect themselves
• The details of your HazCom program, including where the SDS files live and how to read a label

There is no federal minimum hour count for HazCom training. The test is comprehension, not seat time. An inspector may stop a worker on the floor and ask what a pictogram means or where to find the SDS for a chemical they use daily. A blank answer counts as evidence of inadequate training no matter what your records say.

For repackagers, training should also cover what to do when a label arrives damaged or missing from a supplier. Employees need to know not to use an unlabeled container until it is relabeled or identified.

OSHA's osha training requirements reach past HazCom for most small manufacturers. Workers who move materials with forklifts, for instance, need separate forklift certification.

What are the most common labeling mistakes small repackagers make?

Reviewing OSHA inspection data and letters of interpretation, the failures at small repackaging shops cluster around a handful of predictable errors.

Keeping the upstream supplier's name on the label is the single most common one. It feels harmless. It is noncompliant. You are the chemical manufacturer once you repackage, so the label needs your name, address, and phone.

Black-and-white pictograms come second. Inkjet or laser labels printed without red borders fail the standard. Use a color printer or order pre-printed label stock.

Third: not updating labels when the formulation changes. This catches shops that started compliant and drifted. A shift in concentration, a new solvent, or a different preservative can move hazard categories. A label audit once or twice a year is a cheap habit.

Some older facilities still lean on the HMIS or NFPA 704 numeric rating systems instead of GHS elements. Those systems have real uses (NFPA 704 for emergency-response placards, for one), but they do not satisfy GHS labeling. They can sit next to a compliant GHS label. They cannot replace it.

Last, missing or inaccessible SDSs. No legible SDS for a chemical on site, or an SDS binder locked somewhere employees cannot reach during their shift, is a program failure inspectors find all the time. If you ever have to file an incident report after a chemical exposure, an absent SDS makes the whole situation worse from a liability standpoint.

How does GHS labeling interact with DOT hazmat shipping labels?

GHS labels cover workplace containers under OSHA. DOT hazmat labels cover shipping containers in transport, under 49 CFR Parts 171-180, run by the Pipeline and Hazardous Materials Safety Administration (PHMSA). ^[7] They are two separate systems, and small repackagers who also ship their products get tangled up here constantly.

The systems use different classification schemes, different label formats, and different placarding. A GHS Category 1 flammable liquid might be DOT Packing Group I, II, or III depending on flash point and other criteria. You comply with both, and they do not translate automatically into each other.

A container in transit needs the DOT shipping label or placard that meets 49 CFR. It still needs the GHS label for workplace hazard communication once it reaches the destination. Most shipped chemical containers end up carrying both, sometimes integrated on one label design.

If your quantities and chemical types trigger DOT hazmat rules, you also register with PHMSA and provide hazmat training to employees who prepare shipments. That training, under 49 CFR 172.704, is separate from OSHA HazCom training.

Where can small manufacturers get free help with GHS classification and label creation?

The federal government has put real, useful, free resources online. Start there before you pay anyone.

OSHA's HazCom page at osha.gov carries the full text of 29 CFR 1910.1200, every appendix, and guidance documents written for chemical manufacturers. ^[4] The QuickCard on GHS labels is a one-page summary you can post right in your labeling area.

OSHA's hazard classification guidance for manufacturers, importers, and employers is a free PDF with decision trees for each physical and health hazard class. Dry reading, but it answers most classification questions a small repackager hits.

The National Institute for Occupational Safety and Health (NIOSH) keeps a free chemical hazard database, the NIOSH Pocket Guide, with exposure limits and physical properties useful for classification. ^[11] The National Library of Medicine's PubChem database adds properties like flash points, LD50 values, and skin and eye corrosivity data.

For SDS authoring, several commercial vendors offer free tiers for small operations. You can also use the supplier's SDS as a template and update the sections that reflect your product, as long as you never copy data that no longer describes what is in your container.

SafetyFolio's written program generator handles the HazCom program document. Classification and labeling still mean working through the chemistry yourself, but having the written program in place first makes the whole compliance picture cleaner.

Got a genuinely complex mix? One session with an industrial hygienist to validate your classifications is money well spent. The American Industrial Hygiene Association (AIHA) keeps a consultant directory. That review is far cheaper than defending a citation.

Frequently asked questions

Does a small business repackager have to write its own SDS, or can it use the supplier's?

You cannot use the supplier's SDS unmodified once you repackage. At minimum, Section 1 must list your company as the supplier. If you changed the formulation, concentration, or mixture, you also update Section 2 (hazard identification) and any other affected sections. OSHA's SDS guidance document at osha.gov explains each of the 16 required sections and what belongs in them.

What if I only repackage for internal use, not for customers?

The labeling duty still applies. Under 29 CFR 1910.1200, containers of hazardous chemicals in the workplace must be labeled so employees can identify the hazards. The immediate-use exemption covers only containers used right then by the person who filled them. Any container that goes to storage, to another employee, or to another shift needs a full GHS label.

Can I print my own GHS labels on a regular office printer?

Yes, but you need a color printer, because the pictogram borders must be red. Black-and-white pictograms do not meet the GHS standard. The label stock has to stay legible in the conditions the container faces. A paper label that dissolves on contact with the chemical it describes is not compliant, no matter what was printed on it.

How often do GHS labels need to be updated?

Update a label whenever new hazard information would change the classification, and whenever the formulation changes in a way that affects the hazard. The standard sets no fixed annual renewal. Still, auditing your label content against current SDS data and classification guidance once or twice a year is smart practice, especially when suppliers revise their own SDSs.

Do GHS labeling rules apply to hazardous waste containers?

Hazardous waste is mainly EPA's turf under RCRA (40 CFR Part 262), which has its own labeling rules. OSHA's HazCom standard exempts RCRA-regulated hazardous waste from its definition of "hazardous chemical" in most respects. That said, employees who handle hazardous waste still need to understand the hazards, so the practical communication duties overlap even when the regulatory source differs.

What is the difference between a GHS label and a DOT hazmat label?

GHS labels (OSHA, 29 CFR 1910.1200) address workplace hazard communication. DOT hazmat labels (PHMSA, 49 CFR) address transportation safety. The two use different classification frameworks and label formats. If you ship hazardous chemicals, you need both: GHS for workplace use and DOT for transport. They can share one label design but must each meet their own requirements.

Is there a size exemption for very small businesses with fewer than 10 employees?

No. The GHS labeling requirements in 29 CFR 1910.1200 apply to every employer with hazardous chemicals, regardless of company size. OSHA's small-business exemptions cover certain other standards case by case, and HazCom is not one of them. The standard applies to any chemical manufacturer, importer, or employer, with no headcount floor.

What signal word do I use if my chemical has both a severe and a moderate hazard?

Use "Danger." When a chemical carries hazards that would trigger both signal words, GHS and OSHA's Appendix C tell you to use only the more severe word, which is "Danger." Never put both on one label. All applicable hazard and precautionary statements for every hazard class still appear.

How do I handle a container whose original label is damaged or missing when it arrives from my supplier?

Under 29 CFR 1910.1200(f)(9), you may not use a container whose label has been removed or defaced. You relabel it before use. Get the correct label information from your supplier, or build a compliant replacement from the SDS. Train employees to refuse containers with illegible or missing labels and report them right away.

Can my GHS label be entirely in Spanish if my workforce speaks Spanish?

No. The OSHA HazCom standard requires labels in English. You can add Spanish (or another language) alongside the English text, and for workplaces where English is not widely spoken, adding translations is strongly encouraged. But the English elements must always be present. State-plan states may add language requirements, so check your state OSHA equivalent if you operate in one.

What are the OSHA penalties for missing or noncompliant GHS labels in 2024?

Serious HazCom violations carry a maximum of $16,131 per violation as of 2024. Willful or repeated violations can reach $161,323 per violation. First-time violations at small employers often settle lower, around $1,000 to $5,000, but systemic labeling failures across a facility stack into multiple citations that add up fast. OSHA adjusts these amounts for inflation each year.

Do GHS rules apply to aerosol cans I repackage or fill?

Yes. Aerosol cans holding hazardous chemicals fall under HazCom labeling. They also fall under DOT rules if shipped, usually as flammable aerosols, Division 2.1. The EPA and CPSC carry separate regulations for consumer aerosols sold at retail. If your aerosol products reach both commercial and consumer markets, you may have to satisfy several regulatory frameworks at once.

Do I need a written HazCom program even if I only repackage one chemical?

Yes. 29 CFR 1910.1200(e) requires a written Hazard Communication Program for any employer with hazardous chemicals in the workplace. There is no minimum chemical count. A single-chemical program can be short, but it must exist in writing, describe your labeling and SDS procedures, list your chemicals, and stay accessible to employees.

Sources

1. OSHA, Hazard Communication Standard, 29 CFR 1910.1200: 29 CFR 1910.1200 adopted the GHS framework in 2012, finalized for most employers by June 2016, and sets the label, classification, SDS, written program, and training requirements for chemical manufacturers including repackagers.
2. OSHA, Hazard Communication Standard Interpretations (letters of interpretation): OSHA letters of interpretation hold that the immediate-use exemption ends once a container leaves the hands of the employee who filled it, and address small-container labeling accommodations.
3. United Nations, Globally Harmonized System of Classification and Labelling of Chemicals (GHS Purple Book, 10th revised edition): The UN GHS Purple Book is the authoritative technical reference for hazard classification criteria, now in its tenth revised edition.
4. OSHA, Hazard Communication guidance and publications page: OSHA provides free guidance documents for chemical manufacturers on SDS preparation and hazard classification.
5. OSHA, Penalties (official OSHA penalty amounts page): As of 2024, OSHA serious violations carry a maximum penalty of $16,131 per violation; willful or repeated violations can reach $161,323 per violation.
6. OSHA, Top 10 Most Frequently Cited Standards: HazCom violations (29 CFR 1910.1200) consistently appear in OSHA's annual top-10 most frequently cited standards list.
7. PHMSA, Hazardous Materials Regulations 49 CFR Parts 171-180: DOT hazmat labels for transport are governed by PHMSA under 49 CFR Parts 171-180, separate from OSHA's GHS workplace labeling requirements.
8. OSHA, Hazard Communication Standard: Labels and Pictograms (OSHA 3636): OSHA specifies that GHS pictograms must have red borders on U.S. HazCom-compliant labels; black-border-only pictograms do not meet the standard.
9. EPA, Resource Conservation and Recovery Act (RCRA) hazardous waste program, 40 CFR Part 262: Hazardous waste labeling is governed by EPA under RCRA (40 CFR Part 262), which operates in parallel with but separately from OSHA's HazCom standard.
10. NIOSH, NIOSH Pocket Guide to Chemical Hazards: NIOSH maintains free chemical hazard data useful for classification decisions, including exposure limits, physical properties, and health effects.