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Certification Guide

RoHS and REACH Compliance for Electronics Importers: What to Verify

RoHS and REACH compliance for 3C electronics importers: restricted substances, declaration documents, testing evidence and the customs questions that stall shipments.

Jack Hu
Laboratory technician testing electronics components for compliance

Two Regulations, Two Different Jobs

RoHS and REACH are routinely mentioned in the same sentence and just as routinely confused. They address different things and are enforced differently, and an importer who treats them as one requirement tends to discover the difference at the worst possible moment.

RoHS restricts specific hazardous substances in electrical and electronic equipment. It is a product-scope regulation with a defined list of restricted materials and concentration limits. REACH is broader: it governs the safe use of chemicals in general, and for an electronics importer the operative part is the obligation to know whether a candidate list substance is present above the disclosure threshold.

Both are European in origin, and both have been adopted or mirrored by a growing number of other markets, which is why they now appear on customs and retail compliance questionnaires well beyond the EU.

1. Know What RoHS Actually Restricts

RoHS limits ten substances, covering lead, mercury, cadmium, hexavalent chromium, two brominated flame retardants and four phthalates. The limits are set at the homogeneous material level, not at the level of the finished product, and that distinction is where most supplier declarations fall down.

A supplier stating that the finished charger complies tells you almost nothing, because a compliant assembly can contain a non-compliant coating, solder alloy or cable jacket. What you need is a declaration made at material level, ideally supported by test reports for the specific risk materials in that product type: solder, plating, cable insulation and plastic housings.

2. Ask for the Right Document, Not Just a Certificate

There is no single official RoHS certificate. Compliance is evidenced by a declaration of conformity issued by the manufacturer, supported by test reports from a recognised laboratory and by the technical documentation that underpins the claim. A supplier who offers a decorative certificate and nothing else is offering a document, not compliance.

The useful test is whether the supplier can name the laboratory that performed the testing and provide the report number. Reports can be verified with the issuing laboratory, and suppliers who have genuinely tested their products can answer this immediately. Those who have not will produce a general statement instead.

3. Handle REACH as a Disclosure Obligation

For electronics, REACH compliance is mostly about information rather than prohibition. If a product contains a substance on the candidate list above 0.1 percent by weight of an article, that must be disclosed, and in some cases the customer is entitled to information sufficient to allow safe use.

Practically, this means you should hold a supplier declaration covering candidate list substances and know which materials are the realistic risk areas: plasticisers in flexible cables and coatings, flame retardants in housings, and pigments in coloured plastics. Ask how the supplier keeps the declaration current, because the candidate list is updated on a rolling basis.

4. Anticipate the Questions Customs and Retailers Actually Ask

In practice, compliance problems surface as questions rather than as rejections. A customs broker asks for the declaration of conformity and the technical file. A retail buyer asks for the test report reference and the substance declaration. An online marketplace asks for the responsible person in the jurisdiction.

Assemble this pack once, per product family, and keep it with the shipment documents. The cost of doing this upfront is a few hours of document collection. The cost of doing it after a container is held is storage, delay and occasionally a return shipment, none of which the ex-works price accounted for.

5. Build Compliance Into the Purchasing Checklist

Make the document request part of the quotation stage rather than a follow-up after the order. Ask for the declaration of conformity, the RoHS test report reference, the REACH substance statement and the CE technical file location alongside the price. A supplier who cannot supply them at quotation stage will rarely supply them faster later.

For repeat orders, re-confirm annually and whenever the product changes. A component substitution that lowers cost can also change the substance profile, and that is exactly the kind of change that invalidates a declaration without anyone noticing.

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Preguntas frecuentes

What is the difference between RoHS and REACH?
RoHS restricts ten specific hazardous substances in electrical and electronic equipment, at the homogeneous material level. REACH governs chemicals more broadly and, for electronics, mainly creates an obligation to disclose candidate list substances present above 0.1 percent by weight of an article. They are separate requirements and need separate evidence.
Is there such a thing as a RoHS certificate?
Not as a single official document. RoHS compliance is evidenced by a manufacturer declaration of conformity supported by test reports from a recognised laboratory and the underlying technical documentation. Treat a decorative certificate with no test report reference as a document rather than as proof of compliance.
Do I need to test every product for RoHS?
Testing should target the materials that actually carry risk in that product type: solder alloys, metal plating, cable insulation and plastic housings. A declaration covering the whole product, with test reports for those risk materials, is normally the practical evidence base. The claim must be made at material level, not at finished-product level.
What documents should accompany an electronics shipment?
The declaration of conformity, RoHS test report references, a REACH candidate list substance statement, and the location of the CE technical file. Assemble this pack per product family and keep it with the shipping documents so customs or retail compliance questions can be answered without delay.
How often should compliance documentation be refreshed?
Re-confirm annually and whenever the product or its components change. A component substitution made to reduce cost can alter the substance profile and invalidate an existing declaration without anyone intending it, so any bill-of-materials change should trigger a documentation review.