EU RoHS Directive
Directive 2011/65/EU (RoHS 2)
The gatekeeper of the European electronics market. Ten hazardous substances, eleven product categories, concentration limits measured in parts per million. No compliant product, no CE mark, no market access.
RoHS is an EU law that bans certain toxic chemicals from electronics. If you make, import, or sell electrical products in Europe -- anything from a laptop to a coffee machine to a medical scanner -- those products cannot contain more than trace amounts of ten specific hazardous substances. The limits are strict: for most substances, no more than 0.1% by weight in any individual material. For cadmium, it is ten times stricter at 0.01%.
The restricted substances fall into two groups. The original six, banned since 2006, are heavy metals and flame retardants: lead, mercury, cadmium, hexavalent chromium, and two families of brominated flame retardants (PBBs and PBDEs). In 2015, four phthalates were added -- plasticisers commonly used in PVC cables and insulation. These are reproductive toxicants that can interfere with hormones. Their restrictions took full effect in 2019 for most products, and in 2021 for medical and monitoring equipment.
Compliance is measured at the level of each "homogeneous material" -- the smallest piece of a product that cannot be mechanically separated further. A single circuit board may contain dozens of distinct homogeneous materials (the solder, the copper traces, the substrate, the solder mask), and every one must meet the limit independently. This means manufacturers need detailed knowledge of what goes into every component from every supplier.
There is no approval process before you sell. You self-declare compliance, affix the CE mark, and prepare technical documentation proving your product meets the limits. If market surveillance authorities test your product and find it non-compliant, the consequences are immediate: the product is pulled from the market across the entire EU. Some substances do have temporary exemptions where no viable substitute exists yet, but these are reviewed every five to seven years and are steadily being narrowed or removed.
The Restriction of Hazardous Substances Directive is one of the most consequential pieces of EU product safety legislation ever enacted. First adopted in 2003 and substantially recast in 2011 as Directive 2011/65/EU (RoHS 2), it restricts the use of specific hazardous substances in electrical and electronic equipment placed on the European market. The directive operates through a deceptively simple mechanism: maximum concentration values for restricted substances, measured at the level of each homogeneous material within a product. If any single material in any component exceeds the threshold, the entire product is non-compliant.
The original RoHS directive restricted six substances: lead, mercury, cadmium, hexavalent chromium, PBBs, and PBDEs. In 2015, Delegated Directive (EU) 2015/863 added four phthalates -- DEHP, BBP, DBP, and DIBP -- bringing the total to ten. The phthalate restrictions took effect in July 2019 for most categories and July 2021 for medical devices and monitoring instruments. The thresholds are tight: 0.1% (1000 ppm) by weight of homogeneous material for all substances except cadmium, which has a stricter limit of 0.01% (100 ppm).
RoHS 2 fundamentally changed the directive's architecture. The original RoHS had a closed scope -- only specific product categories were covered. RoHS 2 introduced an open scope, adding Category 11 as a catch-all for any EEE not covered by categories 1 through 10. It also brought medical devices (Category 8) and monitoring instruments (Category 9) into scope for the first time, with phased introduction between 2014 and 2016. Perhaps most significantly, RoHS 2 integrated the directive into the EU's CE marking framework, requiring manufacturers to prepare technical documentation and an EU Declaration of Conformity before placing products on the market.
The exemption system is the directive's pressure valve. Annexes III and IV list applications where restricted substances may still be used because substitution is technically impracticable, or where the environmental and health costs of substitution exceed the benefits. Exemptions are time-limited and subject to periodic review. The Commission contracts independent consultants to evaluate renewal applications, conducts stakeholder consultations, and adopts decisions via delegated directives. In practice, this process has experienced significant backlogs -- the current Pack 24 and Pack 25 reviews cover dozens of exemptions, some of which have been in administrative limbo for years.
Looking ahead, RoHS faces a period of significant change. The Commission's fitness check, launched in 2023, is evaluating whether the directive remains fit for purpose in the context of the Chemicals Strategy for Sustainability and the ESPR framework. Industry expects a RoHS 3 recast proposal in 2026 that could expand the restricted substance list, shorten exemption cycles, align with digital product passport requirements, and potentially integrate RoHS into the broader ESPR architecture. For the electronics industry, RoHS compliance is not a one-time achievement but a continuous obligation that requires ongoing monitoring, supply chain management, and adaptation to an evolving regulatory landscape.
Maximum concentration values per homogeneous material. Toggle between table view and detailed cards.
| SUBSTANCE | MAX % | PPM | GROUP | COMMON USES IN EEE |
|---|---|---|---|---|
| Lead (Pb) | 0.1% | 1000 ppm | ORIGINAL 6 | Solder, PVC stabilisers, lead-acid batteries, CRT glass, ceramic glazes, cable sheathing |
| Mercury (Hg) | 0.1% | 1000 ppm | ORIGINAL 6 | Fluorescent lamps, LCD backlights, thermostats, switches, relays, dental amalgam |
| Cadmium (Cd) | 0.01% | 100 ppm | ORIGINAL 6 | NiCd batteries, pigments, plating, PVC stabilisers, quantum dots, photovoltaic cells |
| Hexavalent Chromium (Cr6+) | 0.1% | 1000 ppm | ORIGINAL 6 | Corrosion protection coatings, chrome plating, pigments, leather tanning, wood treatment |
| Polybrominated Biphenyls (PBBs) | 0.1% | 1000 ppm | ORIGINAL 6 | Flame retardant in plastics, textiles, electronic housings. Largely phased out before RoHS |
| Polybrominated Diphenyl Ethers (PBDEs) | 0.1% | 1000 ppm | ORIGINAL 6 | Flame retardant in circuit boards, plastic housings, cables, foam, textiles |
| Bis(2-ethylhexyl) phthalate (DEHP) | 0.1% | 1000 ppm | PHTHALATE | PVC plasticiser in cables, insulation, connectors, wire coatings, gaskets, tubing |
| Butyl benzyl phthalate (BBP) | 0.1% | 1000 ppm | PHTHALATE | PVC flooring, artificial leather, sealants, adhesives, vinyl tiles, automotive trim |
| Dibutyl phthalate (DBP) | 0.1% | 1000 ppm | PHTHALATE | Plasticiser in cellulose plastics, nail polish, adhesives, printing inks, textile coatings |
| Diisobutyl phthalate (DIBP) | 0.1% | 1000 ppm | PHTHALATE | PVC plasticiser, lacquers, varnishes, adhesives, nitrocellulose, printing inks |
RoHS 2 introduced an open scope. Every category of electrical and electronic equipment is now covered.
Refrigerators, washing machines, dishwashers, ovens, air conditioners, electric heaters
Jul 1, 2006
In scope since original RoHS. Highest volume category by weight.
Time-limited exemptions for applications where substitution is not technically feasible. The system is under increasing pressure as review backlogs grow.
Analytical methods defined in the IEC 62321 series for verifying substance concentrations in homogeneous materials.
Non-destructive X-ray fluorescence for rapid screening of homogeneous materials. Identifies potential exceedances that require confirmatory testing. Cannot distinguish Cr6+ from total Cr.
Inductively coupled plasma spectroscopy after acid digestion. Gold standard for quantitative determination of heavy metals in homogeneous materials.
Cold vapour atomic absorption/fluorescence for mercury-specific quantification. Required when XRF cannot distinguish mercury from other elements.
Selective extraction of Cr6+ from coatings and polymers followed by colorimetric determination. Essential because XRF measures total chromium, not Cr6+ specifically.
Gas chromatography-mass spectrometry after solvent extraction from polymeric materials. The definitive method for individual phthalate identification and quantification.
Pyrolysis gas chromatography-mass spectrometry for brominated flame retardant identification. Useful when standard GC-MS extraction is insufficient for certain polymer matrices.
RoHS does not exist in isolation. It intersects with chemical, waste, product safety, and ecodesign legislation at multiple points.
REACH regulates all chemicals broadly; RoHS restricts specific substances in EEE. A substance can be restricted under both. REACH uses risk-based assessment and authorisation; RoHS uses fixed concentration limits. REACH's SVHC Candidate List can signal future RoHS restrictions.
Potential overlap on phthalates (DEHP, BBP, DBP, DIBP are restricted under both). Different scope boundaries can create confusion for mixed-use products.
RoHS restricts hazardous inputs to enable safer recycling at end-of-life. WEEE governs collection, treatment, and recycling of EEE. Products designed with RoHS-compliant materials are easier and safer to recycle under WEEE requirements.
Product scope definitions differ slightly. Some EEE may fall under WEEE collection obligations but have RoHS exemptions, creating mixed waste streams.
RoHS 2 introduced mandatory CE marking for EEE compliance. The CE mark now indicates conformity with RoHS alongside other applicable directives (LVD, EMC, etc.). Manufacturers must prepare a Declaration of Conformity referencing Directive 2011/65/EU.
No direct conflict. CE marking for RoHS is self-declared (no notified body required), which creates enforcement challenges around verification.
The ESPR will set horizontal sustainability requirements for products including electronics. The anticipated RoHS 3 recast may be integrated into the ESPR framework, consolidating substance restrictions with ecodesign, repairability, and digital product passport requirements.
Transitional uncertainty -- unclear whether RoHS will remain a standalone directive or be absorbed into ESPR delegated acts for electronics.
The 2020 Chemicals Strategy aims to phase out the most harmful substances from consumer products. RoHS is identified as a key instrument. The strategy signals potential expansion of restricted substance lists and faster exemption phase-outs.
The strategy's ambition to restrict entire classes of substances (e.g., all non-essential PFAS) may require fundamental changes to RoHS's substance-by-substance approach.
IEC 63000:2018 is the harmonised standard for RoHS compliance assessment. It provides a systematic methodology for evaluating whether EEE meets substance concentration limits through material declarations, analytical testing, and supply chain documentation.
The standard is voluntary (provides presumption of conformity) but not mandatory. Alternative compliance approaches are permitted, leading to inconsistent assessment quality across the market.
From the original directive to the anticipated RoHS 3 recast. Click a milestone for details.
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