Written and maintained by CASRAI Editorial Board
Last updated
REACH shows up in two completely different contexts, and search results mix them without warning: ‘reach’ the marketing/social-media metric, and REACH the EU chemical regulation. This page is about the second one — the regulation a research lab runs into the moment it imports a reagent from outside the EU/EEA, ships a sample into one, or has a European collaborator ordering a controlled substance on its behalf.
If you already have CASRAI’s GHS/HazCom pages open, keep them open: GHS labels and pictograms, GHS classification of chemicals and how to read a safety data sheet cover the labeling side. REACH is a different, related regime — it governs whether a substance can be manufactured, imported or placed on the EU market at all, not how it’s labeled once it’s there.
What REACH actually is
REACH is Regulation (EC) No 1907/2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals. It entered into force on 1 June 2007 and applies across the EU/EEA. It’s administered by the European Chemicals Agency (ECHA), based in Helsinki, and its stated purpose is to ensure a high level of protection for human health and the environment while keeping the free movement of chemical substances on the EU market — partly by pushing manufacturers and importers to substitute the most hazardous substances with safer alternatives where they exist.
The four mechanisms the name spells out
Registration. A company that manufactures or imports a substance into the EU/EEA at 1 tonne or more per year has to register it with ECHA — submitting a dossier of hazard and use data that scales with tonnage. Registration was phased by volume: substances at 1,000+ tonnes/year had to be registered by 2010, 100–1,000 tonnes/year by 2013, and 1–100 tonnes/year by 2018. Registrants of the same substance typically submit jointly through a lead registrant rather than filing separately.
Evaluation. ECHA and EU member-state authorities review registration dossiers for compliance and can require additional testing if the data submitted doesn’t support the safe-use conclusions being claimed.
Authorisation. Substances identified as posing the greatest concern can be added to Annex XIV, after which they cannot be placed on the market or used past a fixed ‘sunset date’ unless a specific use has been granted authorisation — usually contingent on a plan to substitute the substance with something less hazardous once one exists.
Restriction. Annex XVII is the backstop: it bans or limits specific uses of a substance outright, regardless of tonnage or registration status, when the risk is judged unacceptable EU-wide.
SVHC and the Candidate List: the step before Annex XIV
A Substance of Very High Concern (SVHC) is one that meets specific criteria — carcinogenic, mutagenic or toxic to reproduction (CMR) at category 1A or 1B, persistent/bioaccumulative/toxic (PBT) or very persistent/very bioaccumulative (vPvB), or an endocrine disruptor of equivalent concern. ECHA maintains a running Candidate List of SVHCs, updated periodically (it has run to well over 240 substances in recent updates). Being added to the Candidate List doesn’t itself ban a substance — that’s what Annex XIV authorisation does — but it immediately triggers supply-chain communication duties: suppliers have to tell downstream users, including a lab receiving the reagent, when an SVHC is present above 0.1% by weight in an article or mixture.
REACH, CLP and GHS are three different questions, not one
It’s easy to conflate these because they travel together on the same shipment. REACH governs whether the substance itself can be registered, authorised and placed on the market. The CLP Regulation (EC No 1272/2008) is the separate regulation that implements the UN’s Globally Harmonized System (GHS) in the EU — it governs classification and labeling, the pictograms and hazard statements covered in CASRAI’s GHS guides. A substance can be fully REACH-registered and correctly CLP/GHS-labeled and still be sitting on the SVHC Candidate List, or restricted under Annex XVII for a specific use. Registration, labeling and restriction status are three separate facts about the same container, and a lab’s compliance obligations differ for each one.
Where a research lab actually sits inside this
Most academic and industry research labs are ‘downstream users’ under REACH — they buy already-registered substances from a supplier and don’t register anything themselves. Two situations pull a lab directly into REACH’s scope instead:
- Importing directly from outside the EU/EEA. If a lab (or its institution) imports a substance from a non-EU supplier without an EU-based intermediary, the importing entity is the one legally required to register — unless the non-EU manufacturer has appointed an EU-based ‘Only Representative’ who takes on the registration duty instead. Buying through an EU distributor’s local subsidiary avoids this; buying directly from a non-EU manufacturer’s own site usually does not.
- Synthesizing a novel substance above 1 tonne/year. Rare at bench scale, but a real trigger for pilot-scale or scale-up chemistry programmes.
REACH also has a specific, useful provision for early-stage R&D: under Article 9, a manufacturer or importer can notify ECHA that a substance is intended solely for product- and process-orientated research and development (PPORD) and defer full registration for a time-limited, renewable exemption period rather than filing a complete dossier for a compound that may never reach commercial quantities. It’s the mechanism that keeps REACH from requiring a full registration dossier for every novel compound a synthesis lab makes in gram quantities — worth knowing exists even if your institution’s regulatory affairs office, not the lab itself, typically files the notification.
UK REACH is a separate, diverging regime since Brexit
Since 1 January 2021, Great Britain has run its own UK REACH, enforced by the Health and Safety Executive (HSE), legally independent of EU REACH. A substance registered under EU REACH is not automatically compliant under UK REACH and vice versa. UK REACH’s own transitional registration deadlines for substances already on the GB market have been extended more than once, most recently pushed out to October 2025 — relevant to any lab in the UK, or shipping chemicals into or out of Great Britain, that assumed one registration covered both regimes.
REACH vs. the US hazardous-waste framework
It’s worth being explicit about what REACH is not: it doesn’t govern what happens once a chemical becomes waste. RCRA hazardous waste classification (the US framework) and REACH sit on opposite ends of a substance’s life — REACH controls whether and how it can be manufactured, imported and placed on the market in the first place; RCRA controls how it’s characterized, stored and disposed of once it’s discarded. A lab operating internationally can be subject to both, for the same chemical, at different points in its life in the lab.
Frequently asked questions
What is REACH regulation, in plain terms?
REACH is the EU’s central chemical-safety law: it requires manufacturers and importers to register substances above 1 tonne/year with the European Chemicals Agency, lets ECHA evaluate and, for substances of very high concern, require specific authorisation or restrict certain uses outright.
Does REACH apply to a US-based lab that never ships to Europe?
Not directly — REACH applies to substances manufactured in or imported into the EU/EEA. A US lab is affected only indirectly: if it buys reagents from an EU supplier (whose REACH registration and SVHC disclosures shape what’s on the label and SDS it receives), or if it ships samples or chemicals to a European collaborator, who then becomes the importer of record on the EU side.
Is REACH the same thing as GHS or CLP labeling?
No. REACH governs registration, evaluation, authorisation and restriction of the substance itself. The CLP Regulation is the EU’s implementation of GHS and governs classification and labeling. They’re companion regulations that apply to the same substances, not the same regulation under two names.
What is an SVHC, and does it mean the chemical is banned?
A Substance of Very High Concern is a chemical ECHA has identified as meeting specific hazard criteria (CMR, PBT/vPvB, or equivalent concern) and added to its Candidate List. Being on the Candidate List triggers supplier-to-customer communication duties, not an automatic ban — a ban or use-specific authorisation requirement only follows if the substance is subsequently added to Annex XIV.
Do small research quantities still need full REACH registration?
Below 1 tonne/year, REACH’s general registration duty doesn’t apply at all. Above that, for substances used solely in product- and process-orientated research and development, Article 9 provides a notification-based exemption from full registration for a limited, renewable period, rather than requiring the complete dossier a commercial-volume registrant would need to file.








