How OSHA labeling works for in-house containers
Once a hazardous chemical is in your workplace, OSHA's Hazard Communication Standard (29 CFR 1910.1200, adopted for construction by 29 CFR 1926.59) requires that every container of it be labeled — but the method depends on the container. The shipped container keeps the manufacturer's label; a container you fill in-house follows the workplace-labeling rules; a fixed process vessel can use signs; and a portable container used immediately by the person who filled it needs no label at all. This tool walks the exact decision OSHA uses, paragraph by paragraph.
Which labeling method applies?
| Container | Required method | CFR |
|---|---|---|
| Original / shipped container (from manufacturer, importer, distributor) | Keep the supplier's full GHS label intact and legible — do not deface or remove it. | 29 CFR 1910.1200(f)(1) |
| Workplace / secondary container you fill in-house (spray bottle, bucket, jug) | Label with EITHER the full GHS elements OR the product identifier + words/pictures/symbols giving general hazard info. No size cutoff. | 29 CFR 1910.1200(f)(6) |
| Stationary process container (fixed tank, vat, reactor) | Affix a label OR use signs, placards, process sheets, batch tickets, or operating procedures that convey the hazard info and are readily accessible. | 29 CFR 1910.1200(f)(7) |
| Pipes and piping systems | Not containers, so no label applies. Cover them in the written program: how employees are informed of the hazards of the chemicals in unlabeled pipes. | 29 CFR 1910.1200(c); (e)(1)(ii) |
| Portable container for immediate use (same employee, same shift) | No label required while it stays in the filler's control for that shift. The moment it is stored, shared, or left unattended, a (f)(6) label is required. | 29 CFR 1910.1200(f)(8) |
The two (f)(6) options — and the myth of a “small-container” shortcut
For a workplace/secondary container, 29 CFR 1910.1200(f)(6) gives you exactly two choices:
- (f)(6)(i): full GHS label elements (as on the shipped container)
- (f)(6)(ii): product identifier + words/pictures/symbols (or combination) that provide AT LEAST general information on the hazards
There is no volume or size cutoff and no “product-identifier-only” tier for secondary containers. The 100 mL and 3 mL small-package accommodations people sometimes cite come from 29 CFR 1910.1200(f)(12) (added by the HCS 2024 final rule) and apply only to shipped containers labeled by the manufacturer/importer/distributor — and even then the immediate outer package must still carry the full label. Do not apply those ml thresholds to in-house labels.
Worked examples
1. Acetone in an unlabeled 32 oz spray bottle, used by one painter during a shift, then emptied. The painter transferred it from a labeled drum and keeps it in hand the whole shift → the immediate-use exception (29 CFR 1910.1200(f)(8)) applies → no label required. If the painter sets it on a shared bench for the next shift, the exception breaks and a (f)(6) label is now required.
2. A 5-gallon bucket of mixed degreaser staged for the crew all week. It is stored and used by multiple employees across shifts, so it is a workplace/secondary container under 29 CFR 1910.1200(f)(6) → it must be labeled with either the full GHS elements or the product identifier plus words/pictures/symbols. There is no “it's small/temporary” exemption.
What to do next
- Build the label. If a (f)(6) label is required, the fastest compliant path is to reproduce the shipped label's GHS elements. Our GHS label generator and secondary-container label maker produce print-ready labels from an SDS.
- Keep the SDS accessible. The label points workers to the SDS; make sure yours is on hand. See the SDS QR code generator.
- Train your crew. Workers must understand the workplace labeling system (29 CFR 1910.1200(h)). Document it with a HazCom training record.
- Audit your containers. Run the HazCom compliance scorer to find unlabeled containers before OSHA does.
Frequently asked questions
Do I need a GHS label on a spray bottle I fill and use myself in one shift?
No. Under the immediate-use exception (29 CFR 1910.1200(f)(8)), a portable container into which a hazardous chemical is transferred from a properly labeled container does NOT need a label if it is intended only for the IMMEDIATE use of the employee who performed the transfer during that work shift. If you set the bottle down for someone else to use, label it for a later shift, or leave it unattended, the exception no longer applies and you must label it under (f)(6).
What are the two ways to label a workplace/secondary container?
Per 29 CFR 1910.1200(f)(6) there are exactly two options: (i) reproduce the full GHS label elements that appear on the shipped container (product identifier, signal word, hazard and precautionary statements, and pictograms: (f)(1)(i) through (v)), OR (ii) use the product identifier plus words, pictures, symbols, or a combination that provide at least general information on the hazards. There is NO volume or size cutoff and no 'product-identifier-only' allowance for secondary containers.
Is there a small-container exception for secondary containers?
No. The small-container accommodations added by HCS 2024 (29 CFR 1910.1200(f)(12), the 100 mL and 3 mL thresholds) apply ONLY to SHIPPED containers labeled by the chemical manufacturer, importer, or distributor under (f)(1) — and even then the immediate outer package must carry the full label. Those thresholds do not apply to in-house workplace/secondary containers under (f)(6).
How do I label a fixed process tank? And what about pipes?
A fixed (stationary) process tank, vat or reactor can use signs, placards, process sheets, batch tickets, operating procedures, or other written materials in lieu of affixing a label to the individual container (29 CFR 1910.1200(f)(7)), as long as the alternative conveys the required hazard information and is readily accessible in the work area. Pipes and piping systems are not "containers" under 29 CFR 1910.1200(c), so no label rule applies to them; the written hazard communication program must instead describe how employees are informed of the hazards of the chemicals in unlabeled pipes in their work area (1910.1200(e)(1)(ii)).
How many GHS pictograms does OSHA require?
OSHA requires 8 pictograms (Appendix C, Figure C.1): Flame, Flame Over Circle, Exclamation Mark, Exploding Bomb, Corrosion, Gas Cylinder, Health Hazard, and Skull and Crossbones. The GHS09 environment pictogram (dead fish/tree) is outside OSHA's jurisdiction and is voluntary, not required.
Does the secondary-container label have to be in Spanish too?
OSHA requires the workplace label to be legible and in English (29 CFR 1910.1200(f)(10)); you may add other languages as long as the information is also presented in English. OSHA does not recommend or require a Spanish label; many employers add one because much of the construction workforce is Spanish-speaking. This tool's printable decision record is bilingual for that reason.
Sources & verification
- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1200
- https://www.ecfr.gov/current/title-29/section-1910.1200
- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1200AppC
- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1200AppB
- https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.106
- https://www.federalregister.gov/documents/2024/05/20/2024-08568/hazard-communication-standard
OSHA labeling facts verified 2026-10-05. This tool is general guidance for planning only — it is not legal advice. Construction adopts 1910.1200 via 1926.59; OSHA State-Plan states may impose additional requirements.
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