RoHS Compliance Guide: A Practical Handbook for Engineers and SMEs

Directive: 2011/65/EU (RoHS 2) | Amended by: EU 2015/863 (RoHS 3) | Scope: Electrical and Electronic Equipment placed on the EU market

---

If you’re manufacturing, importing, or distributing electrical or electronic equipment (EEE) in the EU, RoHS compliance isn’t optional — it’s a legal prerequisite for CE marking. Yet it remains one of the most misunderstood directives in the CE marking framework, with many SMEs either over-testing, under-documenting, or incorrectly classifying their products.

This RoHS compliance guide walks you through everything you need to know: which substances are restricted, how to build a defensible compliance process, what documentation you need, and the mistakes that routinely catch companies out during market surveillance audits.

---

What Is RoHS and Why Does It Matter?

RoHS stands for Restriction of Hazardous Substances. The current legislation — Directive 2011/65/EU (RoHS 2), amended by Delegated Directive EU 2015/863 (RoHS 3) — restricts the use of specific hazardous substances in electrical and electronic equipment sold in the EU.

Its purpose is environmental and public health protection: keeping toxic materials out of the waste stream and out of the hands of workers who handle end-of-life electronics. Non-compliance means your product cannot legally carry the CE mark, cannot be placed on the EU market, and can be subject to market withdrawal, fines, and reputational damage.

RoHS compliance is also closely linked to REACH Regulation (EC) No 1907/2006 and the WEEE Directive 2012/19/EU — understanding these overlaps saves significant effort when building a compliance programme.

---

Which Products Are in Scope?

RoHS 2 applies to EEE that falls under 10 categories defined in Annex I of the directive:

• Large household appliances
• Small household appliances
• IT and telecommunications equipment
• Consumer equipment
• Lighting equipment
• Electrical and electronic tools
• Toys, leisure, and sports equipment
• Medical devices
• Monitoring and control instruments (including industrial monitoring and control instruments)
• Automatic dispensers
• Other EEE not covered by any of the categories above (Category 11 — open scope introduced by RoHS 2)

Category 11 (open scope) is critical. From 22 July 2019, RoHS 2 applies to all EEE unless a specific exemption applies. If your product contains any electrical or electronic components and is not explicitly exempted, assume it is in scope.

Products That Are Explicitly Excluded

Certain product types remain outside RoHS scope, including:

• Equipment necessary for the protection of the essential interests of EU member state security (including arms, munitions, and war material)
• Equipment designed to be sent into space
• Large-scale stationary industrial tools and large-scale fixed installations
• Means of transport for persons or goods (excluding electric two-wheel vehicles not type-approved)
• Non-road mobile machinery available exclusively for professional use
• Active implantable medical devices
• Photovoltaic panels intended for use in a system designed, assembled, and installed by professionals for permanent use at a defined location

Always verify exclusions against the full directive text — “industrial” does not automatically mean excluded.

---

The 10 Restricted Substances and Their Limits

RoHS 3 (EU 2015/863) expanded the restricted substances list from 6 to 10. All limits apply to homogeneous materials within the product.

Original 6 substances (from RoHS 1, retained in RoHS 2):

• Lead (Pb) — max 0.1% by weight
• Mercury (Hg) — max 0.1% by weight
• Cadmium (Cd) — max 0.01% by weight
• Hexavalent chromium (Cr VI) — max 0.1% by weight
• Polybrominated biphenyls (PBB) — max 0.1% by weight
• Polybrominated diphenyl ethers (PBDE) — max 0.1% by weight

Four additional substances added by EU 2015/863 (applicable from 22 July 2019 for most products):

• Bis(2-ethylhexyl) phthalate (DEHP) — max 0.1% by weight
• Butyl benzyl phthalate (BBP) — max 0.1% by weight
• Dibutyl phthalate (DBP) — max 0.1% by weight
• Diisobutyl phthalate (DIBP) — max 0.1% by weight

The four phthalates were added due to their endocrine-disrupting properties. If you have legacy products or supply chain declarations that predate 2019, they almost certainly need updating to include phthalate data.

Understanding “Homogeneous Material”

This is where many compliance programmes break down. A homogeneous material is a material that cannot be mechanically disjoined into different materials — meaning you assess substances at the material level, not the component or product level.

A PCB, for example, is not a single homogeneous material. Its substrate, copper traces, solder, and coating are each assessed separately. This distinction directly drives your testing and supply chain declaration strategy.

---

RoHS Exemptions: When the Limits Don’t Apply

Annex III and Annex IV of Directive 2011/65/EU list technical and scientific exemptions for applications where compliant alternatives are not yet technically or economically feasible.

Examples include:

• Lead in high melting-temperature solder (Annex III, exemption 7a)
• Lead as an alloying element in steel for machining purposes (up to 0.35% by weight)
• Mercury in certain fluorescent lamps
• Lead in certain medical imaging equipment

Exemptions have expiry dates and are periodically reviewed. Before relying on any exemption, verify its current validity against the official EUR-Lex text of the directive. Expired exemptions are a common source of non-compliance found during audits.

---

Step-by-Step RoHS Compliance Process

Step 1 — Confirm Product Scope

Determine whether your product falls under RoHS 2 scope. Check the 10 categories in Annex I, review the exclusions in Article 2, and consider whether any transition periods apply (particularly relevant for medical devices and industrial monitoring equipment that had delayed scope entry under RoHS 2).

Step 2 — Identify Homogeneous Materials

Break your product down into its constituent parts, then identify the homogeneous materials within each part. Work from your Bill of Materials (BOM) and engineering drawings. This material mapping exercise forms the backbone of your compliance evidence file.

Step 3 — Gather Supply Chain Declarations

For most SMEs, laboratory testing every material is not practical or necessary. The standard approach is to obtain supplier declarations of conformity (also called RoHS declarations or material declarations) for each component and material. These should:

• Reference Directive 2011/65/EU and EU 2015/863 explicitly
• List all 10 restricted substances
• Confirm compliance or identify any exemptions relied upon with exemption numbers
• Be signed, dated, and include the supplier’s contact details
• Be updated when materials or formulations change

Many larger component suppliers provide declarations in standard formats such as IEC 62474 (material declaration for electrical products) or IPC-1752A (industry-standard material declaration form). Accept these formats where possible to reduce administrative burden.

Step 4 — Conduct Risk-Based Testing

Supply chain declarations are generally sufficient, but there are situations where laboratory testing adds essential rigour:

• New or unknown suppliers with no track record
• High-risk materials (solder, surface finishes, plastics with colourants, cables)
• Products entering high-value markets where you need independent verification
• Situations where a supplier cannot provide adequate documentation

The primary testing standard is IEC 62321, which covers analytical methods for each of the 10 restricted substances. Key parts include IEC 62321-3-1 (screening using XRF), IEC 62321-4 (mercury), IEC 62321-5 (cadmium and lead), IEC 62321-6 (polybrominated compounds), and IEC 62321-8 (phthalates).

X-ray fluorescence (XRF) screening is the standard first-pass method — it’s non-destructive, fast, and cost-effective. Positive or borderline XRF results should be followed up with wet-chemistry analysis.

Step 5 — Compile Your Technical Documentation

Your RoHS technical file should include:

• Product description and BOM
• Material mapping / homogeneous material analysis
• Supplier declarations for all in-scope materials and components
• Any test reports (IEC 62321 series)
• Exemption justifications with expiry date tracking
• Internal compliance assessment record

This documentation does not need to be submitted to any authority in normal circumstances, but must be made available to market surveillance authorities on request and retained for 10 years after the last product is placed on the market.

Step 6 — Issue the EU Declaration of Conformity and Apply the CE Mark

RoHS is one of several directives that may apply to your product. Your EU Declaration of Conformity (DoC) must reference all applicable directives, including 2011/65/EU and its amendment 2015/863. There is no requirement for a notified body for RoHS — it is a self-declaration regime. The CE mark is applied by the manufacturer (or their EU-authorised representative) on the basis of the completed compliance assessment.

---

Common RoHS Compliance Mistakes

Relying on outdated supplier declarations. A declaration from 2016 will not cover the four phthalates added by RoHS 3. Audit your supplier declaration database and flag any documents that do not reference EU 2015/863.

Treating components as homogeneous materials. A capacitor is not a homogeneous material — its body, leads, and termination coatings are assessed separately. Build your material mapping at the correct level of granularity from the start.

Assuming “RoHS compliant” labelling on components is sufficient. A component marked “RoHS compliant” on a datasheet is not the same as a formal signed declaration. Datasheet claims carry no legal weight in a market surveillance investigation. Obtain formal written declarations.

Overlooking exemption expiry dates. Exemptions listed in Annex III are time-limited. The European Commission regularly updates exemption statuses. Relying on an expired exemption is a compliance failure regardless of how long the industry has been using it.

Failing to update documentation when designs change. Any change to materials, components, or suppliers should trigger a re-evaluation of your RoHS compliance file. A design change log that feeds into compliance reviews is good practice.

Ignoring the open scope (Category 11). Many SMEs in industrial automation and similar sectors assumed their products were excluded under RoHS 1. Since July 2019, this assumption is no longer safe. Review your product portfolio against the current scope.

---

RoHS and REACH: Understanding the Overlap

REACH (EC) No 1907/2006 restricts or authorises substances of very high concern (SVHCs) through its Annex XIV and Annex XVII. Several substances restricted under REACH Annex XVII overlap with RoHS restrictions — notably lead, cadmium, and certain phthalates.

Key differences: REACH applies across all products (not just EEE), operates substance-by-substance through an ongoing evaluation process, and has different concentration thresholds and article/mixture distinctions. Building a joint RoHS/REACH substance management process — shared BOM analysis, consolidated supplier questionnaires, a unified SVHC register — saves significant duplication for product compliance teams.

---

Frequently Asked Questions

Q: Does RoHS apply to spare parts and replacement components?
Yes. Parts placed on the market as spare parts for EEE, after the transition dates, are subject to RoHS requirements. The exemption for repair and reuse of existing non-compliant products is narrow and specific — do not assume spare parts are automatically exempt.

Q: We are a non-EU manufacturer exporting to the EU. Do we need to comply?
Yes. RoHS applies to products placed on the EU market regardless of where they are manufactured. If you have no legal entity in the EU, you will typically need an EU Authorised Representative to sign the Declaration of Conformity and act as a contact point for authorities.

Q: Do we need to test every batch of products for RoHS substances?
Not necessarily. RoHS is a design-level compliance regime — you are demonstrating that the design and materials used comply with substance limits. Provided your materials and suppliers remain unchanged, a robust supplier declaration programme and initial risk-based testing is generally sufficient. Batch-by-batch testing is not mandated unless your quality system identifies a specific risk.

Q: What are the penalties for RoHS non-compliance?
Penalties are set by individual EU member states and vary significantly — ranging from product withdrawal orders and fines to, in serious cases, criminal liability for responsible persons. Germany, France, and the UK (for UKCA/UK RoHS) have active market surveillance programmes. The risk of being found non-compliant during surveillance activities is real and has increased in recent years.

Q: Does Brexit affect RoHS for UK companies selling in the EU?
Post-Brexit, UK RoHS (The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012, as amended) governs the UK market. If you are selling into the EU, EU RoHS (2011/65/EU) applies and you will need a separate EU DoC and, if you have no EU establishment, an EU Authorised Representative. The substance restrictions are currently aligned, but divergence is possible over time.

---

Conclusion: Build Compliance Into Your Process, Not Onto It

RoHS compliance is most efficiently managed when it is embedded into product development from the earliest stage — not retrofitted during pre-launch certification. The cost of a robust supplier declaration programme, a well-structured BOM with material mapping, and a maintained technical file is modest compared to the cost of a product recall, market withdrawal, or redesign triggered by a compliance failure discovered at launch.

The key actions from this RoHS compliance guide: confirm your product is in scope, understand the 10 restricted substances and their homogeneous material thresholds, update any supplier declarations that predate EU 2015/863, and build a documentation trail that can withstand scrutiny from a market surveillance authority.

---

Save Time With a Ready-Made Compliance Framework

Building a compliant technical file from scratch — including RoHS documentation templates, supplier declaration checklists, EU Declaration of Conformity templates, and a step-by-step CE marking workflow — takes significant time if you’re starting from zero.

The CE Marking Compliance Kit at gyuladancsi.gumroad.com/l/fhuox (€97) gives you a professionally structured, ready-to-use compliance documentation package covering RoHS 2/3, the Low Voltage Directive, EMC, and the broader CE marking process. It’s designed for exactly the kind of engineer or product manager who needs to move fast without cutting corners.

If you’re preparing a product for the EU market and don’t want to spend weeks building your compliance infrastructure from scratch, it’s a practical investment.

---

Directive references current as of publication. Always verify against official EUR-Lex texts. This article is for informational purposes and does not constitute legal advice.

→ Need a ready-to-use EU Declaration of Conformity? Download the EU Declaration of Conformity Pack 2026 — 5 directive-specific templates (EMC, LVD, Machinery, RoHS, RED), field-by-field completion guide, and harmonised standards reference. €67, instant download.