EU Chemical Safety Regulations Summary

Overview

The European Union regulates chemical safety through three interconnected pillars. REACH (Regulation (EC) No 1907/2006) requires that chemical substances manufactured or imported into the EU are registered with the European Chemicals Agency (ECHA), with data on their properties, hazards, and safe use. CLP (Regulation (EC) No 1272/2008) ensures that those hazards are communicated consistently through standardised classification, labelling, and packaging, aligned with the UN Globally Harmonized System (GHS). The Chemical Agents Directive (98/24/EC) then requires employers to protect workers from risks arising from exposure to hazardous chemical agents in the workplace.

These three instruments operate together: REACH generates the hazard data and risk management information, CLP translates that into standardised hazard communication, and the Chemical Agents Directive obliges employers to act on that information through workplace risk assessments, exposure controls, and health surveillance. Supplementing this framework, the Carcinogens, Mutagens and Reprotoxic Substances Directive (2004/37/EC, as amended by Directive (EU) 2022/431) imposes stricter requirements for the most dangerous substances.

REACH Regulation (EC) No 1907/2006

REACH stands for Registration, Evaluation, Authorisation and Restriction of Chemicals. It entered into force on 1 June 2007 and places the burden of proof on industry: manufacturers and importers must demonstrate that the substances they place on the EU market can be used safely.

Scope and duty holders

REACH applies to manufacturers (producing substances within the EU), importers (bringing substances or mixtures into the EU from outside the EEA), and downstream users (industrial users, formulators, article producers). Only Representatives can be appointed by non-EU manufacturers to fulfil registration obligations on their behalf.

Registration

Any substance manufactured or imported in quantities of one tonne or more per year per registrant must be registered with ECHA. The registration dossier includes a technical dossier with physicochemical, toxicological, and ecotoxicological data. For substances produced or imported at 10 tonnes or more per year, a Chemical Safety Report (CSR) is additionally required, documenting the chemical safety assessment including exposure scenarios.

Safety Data Sheets

Article 31 of REACH requires suppliers to provide a Safety Data Sheet (SDS) for substances or mixtures classified as hazardous under CLP, for PBT or vPvB substances, and for Candidate List substances. The SDS follows the 16-section format prescribed in REACH Annex II and is the primary instrument for communicating hazard and risk management information down the supply chain. Where a Chemical Safety Report has been prepared, relevant exposure scenarios must be annexed to the SDS as an extended Safety Data Sheet (eSDS).

Substances of Very High Concern and authorisation

ECHA maintains the Candidate List of Substances of Very High Concern (SVHCs). These include substances that are carcinogenic, mutagenic, or toxic for reproduction (CMR Category 1A or 1B), persistent, bioaccumulative and toxic (PBT), very persistent and very bioaccumulative (vPvB), or substances identified as causing equivalent concern, such as endocrine disruptors. Substances on the Candidate List may be moved to Annex XIV (the Authorisation List), after which they cannot be placed on the market or used after a given sunset date unless the user has been granted authorisation by the European Commission.

Restriction

Annex XVII of REACH lists restrictions on the manufacture, placing on the market, and use of certain dangerous substances, mixtures, and articles. Restrictions apply across the entire EU and can limit or ban specific uses of a substance where there is an unacceptable risk to human health or the environment that needs to be addressed on a Union-wide basis.

CLP Regulation (EC) No 1272/2008

The CLP Regulation implements the UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS) within the EU. It applies to all substances and mixtures placed on the EU market and defines how chemical hazards are identified, categorised, and communicated.

Classification

CLP defines three broad groups of hazard classes: physical hazards (explosives, flammable gases, oxidising liquids, etc.), health hazards (acute toxicity, skin corrosion, carcinogenicity, reproductive toxicity, etc.), and environmental hazards (aquatic toxicity). Each hazard class is divided into categories reflecting the severity of the hazard. Manufacturers and importers must self-classify their substances based on available data. For substances with harmonised classifications listed in Annex VI of CLP, the harmonised classification is legally binding.

Labelling

Labels must include the applicable hazard pictograms (GHS01 through GHS09), a signal word (either "Danger" for more severe hazard categories or "Warning" for less severe), hazard statements (H-codes describing the nature of the hazard, e.g. H301 "Toxic if swallowed"), and precautionary statements (P-codes advising on handling, storage, disposal, and first-aid measures). The nine pictograms are standardised red diamond-shaped symbols covering explosive, flammable, oxidising, compressed gas, corrosive, toxic, irritant/harmful, serious health hazard, and environmental hazards.

Notification to ECHA

Manufacturers and importers placing classified substances on the EU market must submit a notification to the ECHA Classification and Labelling Inventory within one month of placing the substance on the market. This inventory allows ECHA and downstream users to see how substances have been classified across the industry.

Chemical Agents Directive 98/24/EC

Directive 98/24/EC establishes minimum requirements for the protection of workers from risks to their health and safety arising from, or likely to arise from, the effects of chemical agents present at the workplace. It applies to all workplaces where hazardous chemical agents are used or may be present.

Risk assessment

Article 4 requires the employer to determine whether hazardous chemical agents are present in the workplace and to assess any risk to the health and safety of workers arising from those agents. The risk assessment must consider the hazardous properties of the chemical agents, the information provided by the supplier (including Safety Data Sheets), the level, type, and duration of exposure, the conditions of work involving such agents, any occupational exposure limit values or biological limit values, and the effect of preventive measures taken or to be taken.

Hierarchy of controls

Where the risk assessment reveals a risk to worker health and safety, the employer must implement measures following a strict hierarchy. Elimination of the hazardous chemical agent is the first priority. Where elimination is not practicable, substitution with a less hazardous agent or process must be considered. Failing that, engineering controls such as enclosed systems, local exhaust ventilation, and process modifications must be applied to reduce exposure at source. Personal protective equipment (PPE) is the last resort, to be used only when exposure cannot be adequately controlled by other means. Chemical hazards are especially acute in enclosed environments — see confined space regulations for additional duties that apply when chemical agents may be present in substantially enclosed spaces.

Occupational Exposure Limits

The Directive operates through a system of Occupational Exposure Limits (OELs). The EU sets Indicative Occupational Exposure Limit Values (IOELVs), which Member States must transpose into national legislation, setting limits at least as protective. Binding Occupational Exposure Limit Values (BOELVs) set a maximum limit that Member States cannot exceed. Employers must ensure that worker exposure does not exceed the applicable OEL, measured as an 8-hour time-weighted average (TWA) or short-term exposure limit (STEL) where defined.

Emergencies and health surveillance

Article 7 requires employers to establish procedures for dealing with accidents, incidents, and emergencies involving hazardous chemical agents. This includes having emergency plans, providing first-aid facilities, and making relevant safety information available to emergency services. Article 10 requires health surveillance of workers where the risk assessment identifies a risk to health that cannot be fully eliminated. Health surveillance records must be maintained, and workers must have access to their individual results.

Carcinogens, Mutagens and Reprotoxic Substances Directive 2004/37/EC

Directive 2004/37/EC (the CMD, as amended by Directive (EU) 2022/431 to include reprotoxic substances) sets out stricter requirements for substances classified as carcinogenic, mutagenic, or toxic for reproduction (CMR). It applies in addition to the Chemical Agents Directive, imposing higher standards where workers may be exposed to CMR substances.

Substitution principle

Article 4 establishes a strong substitution obligation: the employer must replace the carcinogen, mutagen, or reprotoxic substance with a substance or process that is not dangerous or is less dangerous, so far as is technically possible. Unlike the general Chemical Agents Directive, where substitution is one step in the hierarchy, the CMD makes it an explicit duty with the burden on the employer to demonstrate why substitution is not technically feasible.

Binding OELs and record keeping

The CMD sets binding OELs for specific listed carcinogens and mutagens, including substances such as benzene, hardwood dusts, chromium(VI) compounds, and vinyl chloride monomer. These limits are progressively tightened through amendments. A distinctive feature of the CMD is its requirement for extended record keeping: exposure records and health surveillance records must be kept for a minimum of 40 years after the end of exposure, reflecting the long latency period of many occupational cancers.

Safety Data Sheets

The Safety Data Sheet is the central document for communicating chemical hazard and risk management information in the supply chain. Its format is prescribed by REACH Annex II (as amended by Regulation (EU) 2020/878) and follows a standardised 16-section structure:

1. Identification of the substance/mixture and of the company/undertaking
2. Hazards identification
3. Composition/information on ingredients
4. First aid measures
5. Firefighting measures
6. Accidental release measures
7. Handling and storage
8. Exposure controls/personal protection
9. Physical and chemical properties
10. Stability and reactivity
11. Toxicological information
12. Ecological information
13. Disposal considerations
14. Transport information
15. Regulatory information
16. Other information

An SDS must be provided free of charge, in the official language(s) of the Member State where the substance or mixture is placed on the market, and must be updated when new information on hazards or risk management becomes available. For registered substances where exposure scenarios have been developed in the Chemical Safety Report, these must be annexed to the SDS as an extended Safety Data Sheet (eSDS).

Workplace obligations summary

Employers handling or storing chemical substances in the EU must fulfil the following obligations, drawing from REACH, CLP, and the Chemical Agents Directive:

• Risk assessment: Identify all hazardous chemical agents in the workplace, assess risks per Directive 98/24/EC Article 4, and document findings. Reassess whenever there is a significant change in conditions.
• Safety Data Sheet review: Obtain and review current SDSs for all hazardous substances used. Ensure eSDS exposure scenarios are checked against actual conditions of use. Communicate relevant information to workers.
• Exposure controls: Apply the hierarchy of controls (elimination, substitution, engineering controls, PPE). Ensure workplace exposure does not exceed applicable OELs. For CMR substances, apply the stricter substitution duty under Directive 2004/37/EC Article 4.
• Classification and labelling compliance: Ensure all substances and mixtures are classified, labelled, and packaged in accordance with CLP before placing on the market or making available to workers. Maintain an inventory of classified substances used on site.
• Training and information: Provide workers with information and training on the hazardous chemical agents present in the workplace, the risks they pose, the precautions to take, access to Safety Data Sheets, and the content of any applicable OELs.
• Emergency procedures: Establish procedures for accidents, incidents, and emergencies involving hazardous chemicals per Directive 98/24/EC Article 7. Conduct drills and ensure first-aid provisions are adequate.
• Health surveillance: Arrange appropriate health surveillance where the risk assessment identifies a residual health risk per Directive 98/24/EC Article 10. For CMR substance exposure, maintain health surveillance records for 40 years per Directive 2004/37/EC.
• REACH obligations: Downstream users must check that their use is covered by the supplier's registration and exposure scenarios. If a use is not covered, the downstream user must notify ECHA or prepare their own Chemical Safety Report.