Understanding ECHA: An overview of REACH, CLP, and EU chemical compliance

The European Chemicals Agency (ECHA) manages the EU system for assessing and controlling chemical substances to ensure the protection of human health and the environment. For businesses operating within the EU, the applicable regulatory requirements depend directly on their specific role within the supply chain. This article provides a comprehensive overview of ECHA regulations, categorising them into two key functions: suppliers of substances and suppliers of articles.

REACH Supply Chain Roles

The specific ECHA regulations applicable to a company — out of the 12 managed by the agency — are determined by its function in the supply chain. As with many other regulatory terms and concepts, the foundational definitions of these business roles are established under the REACH Regulation. Although other regulations include specific exemptions and minor adaptations, the REACH definitions are broadly applicable across all other legislation. REACH defines five formal actors within the supply chain:

• Manufacturers produce or extract substances within the EU

• Importers bring substances into the EU from non-EU countries

• Only Representatives act on behalf of non-EU manufacturers to fulfil their REACH compliance obligations

• Distributors store and place substances or mixtures on the market without altering them

• Downstream Users use substances or mixtures in their industrial or professional activities (e.g. chemicals in cleaning services), blend substances into mixtures, or use chemicals to produce articles

In practice, companies often hold multiple REACH roles concurrently. However, core business operations and regulatory compliance obligations as a supply chain actor generally focus on whether the company’s product is a substance (and mixture) or an article.

Suppliers of Substances

To varying degrees, all EU-based companies handle chemical substances and consequently have regulatory obligations as suppliers of substances. The extent of these substance-related obligations depends on the volume and type of substances used, as well as whether the final output of the manufacturing process is a substance, mixture, or article. The primary responsibility of this group is to register chemical substances placed on the EU market and conduct safety assessments. They are required to communicate hazard information and safe-use recommendations to regulatory authorities and throughout the supply chain via Safety Data Sheets (SDS) and exposure scenarios. From ECHA's regulatory perspective, these actors represent the entry point of the EU chemical supply chain. Consequently, their chief obligation is to generate, research, and share foundational chemical safety data.

Suppliers of Articles

Any manufacturer, importer, distributor, or other actor placing articles on the market — whether manufactured internally or sourced from within or outside the EU — has regulatory obligations as a supplier of articles. Articles are defined as objects whose shape, surface, or design determines their function to a greater degree than their chemical composition (e.g. a chair, a phone, a tyre). Complex articles may consist of multiple layers of component articles, which can make determining the exact concentration of contained substances highly complex. Assessing the requirements related to substances contained within articles represents a key challenge in supply chain communication. Consequently, the obligations of article suppliers focus primarily on monitoring chemical composition across their supply chain, notifying authorities when specific threshold concentrations are met, and communicating safe-use instructions. From ECHA's perspective, these actors represent the info-application level in the supply chain; as such, they provide transparency regarding the distribution, use patterns, and industrial reliance on specific chemicals.

ECHA Regulations and Scope of Application

ECHA's regulatory framework consists of several pieces of legislation, each addressing distinct aspects of chemical management and targeting different actors within the supply chain.

REACH & SVHC: Notification Obligations for Articles and Substances

REACH is the central and most comprehensive ECHA regulation. It establishes the foundational concepts and compliance workflows that support the entire regulatory system. REACH governs how substances manufactured or imported into the EU must be registered, continuously communicated across regulatory bodies and the supply chain, and defines the procedure for identifying and substituting hazardous substances.

Crucially, REACH applies to all chemical substances — not only those used in industrial processes but also those present in day-to-day consumer products. Both substance suppliers and article suppliers have compliance duties under REACH, albeit in different ways. Substance suppliers must register substances and complete safety assessments, whereas article suppliers must submit notifications if their products contain Substances of Very High Concern (SVHC) above specific threshold concentrations and pass this information down the supply chain. Because of its broad scope, this regulation impacts the majority of businesses operating in the EU.

CLP Regulation: Classification, Labelling and Packaging for Substance Suppliers

Alongside REACH, the CLP Regulation defines how hazardous substances and mixtures placed on the EU market must be classified, labelled, and packaged. Because CLP applies to substances and mixtures, it primarily affects substance suppliers. Article suppliers are only subject to CLP requirements if their production processes involve handling raw chemical substances, meaning their obligations under this regulation depend on the proportion of chemical substances involved in their business operations.

WFD: SCIP Database for Article Suppliers

The primary obligation for article suppliers to monitor substance concentrations in their products stems from both REACH and the Waste Framework Directive (WFD). The WFD mandates that ECHA maintains the SCIP database — a public portal containing information on articles containing SVHCs. This database serves regulators, waste operators, and consumers by providing transparency regarding the presence of hazardous substances in articles throughout their entire lifecycle, including the waste stage. Since January 2021, producers, importers, and distributors of articles containing Candidate List substances above a concentration of 0.1% weight by weight must submit detailed information to SCIP.

Specific Regulations for Substance Suppliers

A number of targeted regulations apply primarily to substance suppliers:

• Biocidal Products Regulation (BPR) – Governs the approval and use of biocidal active substances and products

• POP Regulation – Prohibits or severely restricts persistent organic pollutants that persist in the environment and bioaccumulate through food chains

• Prior Informed Consent (PIC) Regulation – Governs the import and export of hazardous chemicals that are banned or severely restricted within the EU

• CAD/CMRD – Establishes occupational exposure limits (OELs) to ensure workplace safety

• Drinking Water Directive (DWD) – Requires chemical assessments for materials in contact with drinking water

• Industrial Emissions Directive (IED) – Controls pollutants emitted from industrial facilities

• Serious cross-border health threats – Enables ECHA to conduct public health risk assessments when chemical-related threats emerge

Specific Regulations for Article Suppliers

Article suppliers are subject to targeted regulations for specific product categories:

• Batteries Regulation – Sets requirements for batteries and accumulators

• Packaging and Packaging Waste Regulation (PPWR) – Establishes requirements for packaging materials

• POP Regulation – May affect article suppliers depending on the specific materials used in their products