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    GHSGlobally Harmonized System

    Definition

    Globally Harmonized System of Classification and Labelling of Chemicals — a UN framework for classifying chemical hazards and communicating them.

    Editorial definition: The QHSE Standard, updated 3 October 2026 · https://qhsetech.com/glossary/ghs

    Scope: Legal obligations depend on how each jurisdiction adopts the framework.

    Sources checked: . Examples are editorial illustrations.

    What the GHS, CLP and OSHA's hazard communication standard say

    The Globally Harmonized System of Classification and Labelling of Chemicals is a United Nations framework, and HSE describes it as a voluntary agreement rather than a law. It binds only where a jurisdiction adopts it, which is why one hazard can carry the same pictogram in several regions and still be governed by different legal texts. In the European Union the legal mechanism is the CLP Regulation, (EC) No 1272/2008, which ECHA says is based on the GHS, is directly applicable and binding, and applies to all substances and mixtures placed on the EU market except those listed in Article 1, paragraphs 2 to 5. ECHA gives its purpose as a high level of protection of health and the environment together with the free movement of substances, mixtures and articles.

    CLP puts duties on suppliers according to their role: manufacturers, importers, downstream users and distributors. Classification comes first. A substance or mixture is assigned hazard classes and categories covering physical, health and environmental hazards, and the hazards are then communicated through labels and safety data sheets. ECHA records recent change. New hazard classes were added by Delegated Regulation (EU) 2023/707, in force from 20 April 2023, and Regulation (EU) 2024/2865 entered into force on 10 December 2024 with staggered application dates. Regulation (EU) 2025/2439, in force from 23 December 2025, moves the application date of certain labelling and packaging provisions to 1 January 2028. Before a mandatory date suppliers may apply the revised rules voluntarily, so a record needs to show which version a label followed.

    Great Britain has its own regulation. HSE says GB CLP makes the GHS binding there, that EU harmonised classifications in effect on 31 December 2020 were assimilated as the GB mandatory classification and labelling list, and that manufacturers and importers no longer notify HSE when placing new substances on the market. In the United States, OSHA says its Hazard Communication Standard is aligned with the GHS: labels carry a harmonised signal word, pictogram and hazard statement for each hazard class and category, with precautionary statements, and safety data sheets follow a specified 16-section format. This page is general information, not legal advice.

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    What a GHS record holds in software

    • The supplier's role in the chain (manufacturer, importer, downstream user or distributor), since CLP duties follow the role.
    • For each substance or mixture, the classification: hazard classes and categories, signal word, pictograms, hazard statements and precautionary statements.
    • The regime and the version of the rules the classification follows (EU CLP, GB CLP or the US standard) and the date they were applied.
    • The source of the classification, such as a supplier sheet or a harmonised entry, with the date it was checked.
    • Label records for each container or pack, including any label made at the workplace, linked to the underlying classification.
    • Safety data sheet versions, with the date each was received and the sections relied on.
    • A change log showing when a classification altered and which labels and assessments it affected.

    GHS, CLP and a safety data sheet

    The GHS is the model, CLP and the US standard are legal texts that adopt it, and a safety data sheet is a document produced under those texts. A pictogram on a label does not say which law applies, so records should name the regime as well as the letters GHS.

    A hypothetical example: a supplier updates a hazard classification

    This scenario is invented and describes no real distributor or supplier. A distributor holds a cleaning concentrate in its chemical register. The record names the regime the label follows, the hazard classes and categories, the pictograms and signal word, and the date the sheet was received.

    The supplier issues a revised sheet with a changed hazard statement and a new date. The register opens a task to compare the old and new classification, update the label used on decanted containers and tell the people whose risk assessments cite the product. Because the revised EU rules apply on staggered dates, the record also shows whether the supplier applied the revision voluntarily or on a mandatory date. The old sheet stays in the record, marked superseded.

    Common misunderstandings about the GHS

    • The GHS is not itself law. HSE calls it a voluntary agreement, and legal duties come from texts that adopt it, such as CLP or the US standard.
    • One pictogram does not mean one regime. The same symbols can appear under EU CLP, GB CLP and the US standard, which are separate legal texts.
    • EU CLP does not cover Great Britain. HSE describes a separate GB CLP with its own mandatory classification and labelling list.
    • A revision is not instantly mandatory. ECHA says suppliers need not apply the revised EU rules before their mandatory application dates, although they may.
    • A label is not a risk assessment. It communicates the hazard, and an employer still assesses the risk of the work.

    How the GHS relates to other glossary terms

    The GHS supplies the hazard language that other chemical rules rely on.

    • SDS: the supplier document that carries the classification in its sections.
    • COSHH: the British duty to assess and control exposure, which draws on label and sheet information.
    • REACH: the EU regime for substances, whose duties sit alongside classification and labelling.
    • PPE: protective equipment, which the precautionary statements on a label may refer to.

    Records and evidence that usually exist for the GHS

    • The classification record with its source and date.
    • Supplier safety data sheets with their versions.
    • Label files or records for each container type.
    • A note of the regime and rule version followed.
    • A change log of reclassifications and what they affected.
    • Training records on label elements and sheet format.

    What a software tool needs to capture for the GHS

    • A field for the legal regime and the date or version of the rules applied.
    • Searchable fields for hazard class, category, pictogram, signal word and statements.
    • Supplier sheet versioning with a comparison of old and new classifications.
    • Label records tied to the classification they came from, including workplace labels.
    • Alerts that find the assessments and inventory lines affected by a changed classification.
    • A way to record whether revised rules were applied voluntarily or on a mandatory date.
    • Import and export that keep the classification data and do not flatten it into free text.

    Catalog profiles documenting SDS library or chemical inventory records

    The list follows the SDS library or chemical inventory rule. It does not show that a product classifies a mixture, generates CLP labels or tracks which regime a label follows.

    Same rule for every product: tagged “Chemical Management”, with a sourced SDS library or chemical inventory capability in its record, or one the vendor stated to us, labelled as vendor-stated. Documented and conditional capabilities qualify; check the linked scope before treating a module as included.

    Tekmon pays for a sponsored placement (above); its place in this list follows the same rule as every entry. How lists are ordered

    All 10 matching profiles are shown. Documentation review, not hands-on testing or a claim of compliance.

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    Frequently asked questions

    Is GHS the same as CLP?

    No. The GHS is the United Nations framework. CLP is the EU regulation based on it, directly applicable and binding across the EU, and GB CLP is the separate British regulation.

    What changed in the EU recently?

    ECHA lists new hazard classes in force from 20 April 2023, a 2024 revision in force from 10 December 2024 with staggered application dates, and a 2025 amendment that moves the application date of certain labelling and packaging provisions to 1 January 2028.

    Does the United States follow the GHS?

    OSHA says its Hazard Communication Standard is aligned with the GHS, with a harmonised signal word, pictogram and hazard statement on labels and a 16-section data sheet format. Check which revision of the GHS the current rule follows.

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