EU Design Law Reform and the Repair Clause: The Rules for Selling Aftermarket Exterior Parts into Europe Are Changing

The EU has completed a reform of its design law, and Directive (EU) 2024/2823 now contains a "repair clause": where a design is a component part of a complex product such as a car, the design of that part depends on the appearance of the car, and the part is used solely to repair the car so as to restore its original appearance, design protection does not apply. These are the so-called "must-match" spare parts. For traders in aftermarket exterior parts this is the most important rule change in decades, but it deals with design rights only. Vehicle manufacturers' trademarks, patents, product safety and type-approval obligations are untouched, and the seller must clearly inform consumers of the part's commercial origin and manufacturer. Member States must transpose the Directive by 9 December 2027, and a transition for certain pre-existing national design rights runs to 9 December 2032, so national rules will not be uniform for some years.

The short answer

The repair clause points every EU Member State in the same direction: design rights can no longer be used to block visible replacement parts that are used for repair and restore the original look of the vehicle. It is not a free pass. The traders who misread it tend to make the same mistakes: they assume a part is now "legal" and then put the carmaker's logo on the box, overlook a patent, or sell a styling upgrade as a repair part. This article goes through what the clause does, what it does not do, and why exterior door hardware such as handles remains a grey area that needs case-by-case assessment.

Who this article is for

This article is written for Tier 1, Tier 2 and Tier 3 aftermarket parts traders, importers and distributors, especially those already selling into the EU or planning to. If your range includes exterior door handles, tailgate handles, hood locks, hinges, latches or window regulators, and you want to know what you can sell once the EU rules change, how you should label it and what documents you should ask your factory for, this is for you. It is not legal advice; specific parts and target countries still need to be assessed by a local IP lawyer.

What a design right is

A design right protects the appearance of a product: the lines, contours, shape, texture, materials, colours and ornamentation that together make up how it looks. If a design is new and has individual character, the right holder can stop others from making, selling or importing products that use it without consent. In the EU a design can be registered at EU level with the EU Intellectual Property Office as an EU design, or registered nationally in individual Member States. Registered designs are renewed in five-year periods for up to 25 years, and there is also a shorter-lived unregistered design right. Vehicle manufacturers commonly seek design protection for visible parts such as body panels, lamps, mirror housings and door handles.

Design right vs trademark vs patent

The three rights protect entirely different things. A design right protects what a part looks like. A trademark protects whose it is: the names, logos and emblems that identify commercial origin, such as a carmaker's brand name and badge. A patent protects how it works: a technical solution such as a latch mechanism or an opening system. One part can sit under all three at once. The shape of a door handle may be a registered design, its internal mechanism may be patented, and the badge moulded into it is a trademark. The repair clause removes only one of these, the design right, and leaves the other two exactly where they were.

Why visible replacement parts were the battleground

Most aftermarket parts have nothing to do with appearance. Fit a filter or a set of brake pads with a different shape and the car looks the same. Body and exterior parts are different. When a dented wing, a cracked headlamp or a broken exterior door handle is replaced, the car only looks as it did before if the new part copies the appearance of the original. Because it must copy the appearance, an independent replacement part can infringe the carmaker's design right whenever one exists. For decades that is where the dispute between vehicle manufacturers and the independent aftermarket over visible parts has been fought.

What "must-match" means

"Must-match" is the shorthand used by the industry and by legal commentators for these parts. The appearance of the replacement part is not a free choice: it has to be the same as the original, or the vehicle is not restored. Compare a part whose appearance is a matter of choice. An owner replacing wheel rims can pick a completely different style and the car still works; it simply looks different. This distinction matters because the new clause removes protection only for the first kind of part, and it drives the door handle question discussed later.

Before the reform: a patchwork

Before this reform there was no harmonised EU rule on repair parts for national design rights. Some Member States had already written a repair clause into national law, so visible replacement parts were outside design protection there. Others still allowed vehicle manufacturers to enforce national design rights against independent parts. The result was that the same part could be sold freely in one country and face an infringement claim next door. For cross-border distributors that meant checking country by country, and many simply avoided appearance-sensitive items. The repair clause is aimed at exactly this patchwork.

The two instruments in the reform package

The reform consists of two instruments. The first is Regulation (EU) 2024/2822, which governs EU designs (formerly Community designs) that have unitary effect across the Union. According to commentators, its main provisions have applied since 1 May 2025 and it makes the repair clause for EU designs permanent. The second is Directive (EU) 2024/2823, a recast of the directive on the legal protection of designs, which governs national designs. It entered into force on 8 December 2024 and Member States must transpose it by 9 December 2027. For national design rights, where most of the historic problems lay, the Directive is the key instrument.

What the repair clause actually says

In plain terms: if a design is a component part of a complex product, the design of that part depends on the appearance of the complex product, and the part is used solely to repair the complex product so as to restore its original appearance, then the design is not protected. In other words, a vehicle manufacturer can no longer rely on a design right to stop independent companies making and selling such repair parts. The clause carries a condition: the manufacturer or seller of the part must duly inform consumers of the part's commercial origin and the identity of its manufacturer. The three elements are worth taking one at a time, because if any one of them fails, the clause will not help you.

Element one: the design must depend on the vehicle's appearance

The new text expressly includes the condition that the design of the component part is dependent on the appearance of the complex product. That is the must-match limitation, and it is a change. In 2017, in Acacia (joined cases C-397/16 and C-435/16), the Court of Justice of the EU read the old EU-level repair provision more broadly and held that it was not limited to parts whose design depends on the appearance of the vehicle; the parts in dispute there were wheel rims. Writing the dependency condition into the new text means that parts whose appearance is a free choice generally cannot rely on the repair clause. Whether a given part depends on the vehicle's appearance becomes the central question.

Element two: solely for repair, to restore the original appearance

The clause covers use solely for repair so as to restore the original appearance. The replacement should have the shape, size and look of the original. In Acacia the Court indicated that parts differing in colour or size, used for personalisation, do not restore the original appearance. In practice, your catalogue, product descriptions and sales messaging should be built around repair and restoring the original look, not around restyling, upgrading or changing the look.

Element three: informing consumers of commercial origin

This is the condition most often overlooked, and it lands squarely on the trader. Under the Directive, a manufacturer or seller of a component part cannot rely on the repair clause if it has failed to duly inform consumers of the commercial origin and the identity of the manufacturer of the part. The purpose is that consumers know they are not buying an original part and can make an informed choice. The protection of the repair clause is therefore not automatic; it depends on whether your labelling and disclosure are done properly.

What informing consumers looks like in practice

According to the Directive's recitals, the information should be given by a clear and visible indication on the product or, where that is not possible, on its packaging or in a document accompanying it, and should include at least the trade mark under which the product is marketed and the name of the manufacturer. In day-to-day terms: where the part has room, mark your own brand and the manufacturer on it by moulding, engraving or label; print your brand and the manufacturer's name clearly on the front of the box; state prominently in e-commerce listings and catalogue pages that the part is an aftermarket replacement; and express vehicle fitment as "suitable for" or "compatible with" a model, never implying, or allowing buyers to believe, that the part is original. The exact format required after transposition may differ between countries, so confirm it for each target market.

No duty to guarantee end use, but no wilful blindness either

The Directive also states that the manufacturer or seller of a component part is not required to guarantee that end users ultimately use the part solely for repair to restore the original appearance. That removes a real headache, because traders cannot control downstream use. It does not mean you can actively market the part for modification. A reasonable reading is that your own product descriptions, advertising and choice of customers should remain consistent with repair use. Where exactly that line falls in a given case is a matter of interpretation, and it is worth asking a lawyer to review your sales model.

What it does not do, part one: it does not permit carmaker trademarks

The repair clause removes design protection only. It says nothing about trademarks. The vehicle manufacturer's trademarks and badges must not appear on the part, the packaging, the instructions or the listing. The Court of Justice's January 2024 Audi judgment (C-334/22) illustrates the point: it concerned an aftermarket radiator grille with an element shaped to hold the carmaker's emblem, and the Court found that this could infringe the trademark and that the design-law repair provision does not apply to trademark questions. The rules on trademarks in private-label packaging are covered in a separate article on this site and are not repeated here.

What it does not do, part two: it does not override patents or other rights

If the mechanism, structure or process of a part is protected by a patent, the repair clause changes nothing; infringement is decided under patent law. Likewise, copyright, unfair competition law and contractual restrictions do not disappear because of the repair clause. This matters especially for door hardware: latches, handle linkages and the operating principle of flush handles are more likely to involve technical patents than their appearance is to involve design rights.

What it does not do, part three: it does not cover styling or upgrade parts

The clause protects only repair parts that restore the original appearance. Turning a plain handle into a chrome one, fitting the styling of a higher trim level, or any part whose purpose is to change the look of the vehicle falls outside the repair clause. If such a product falls within someone else's design right, it can still infringe. When planning a range, it helps to manage original-appearance repair parts and styling parts as separate lines, each with its own rights check.

What it does not do, part four: it does not remove safety and regulatory obligations

The repair clause is design law, not product regulation. Product safety, consumer protection, vehicle type-approval and any approval or labelling requirements for specifically regulated parts continue to apply. A part that falls within the repair clause may still not be placed on the market without meeting the relevant regulatory requirements. Emerging regulatory issues such as flush door handles are covered in a separate article on this site.

Timeline: transposition by 9 December 2027

Directive (EU) 2024/2823 entered into force on 8 December 2024 and Member States must transpose it into national law by 9 December 2027. Until each country has legislated, repair questions under national design rights continue to be governed by that country's current law. Countries that already have a repair clause may only need to adjust wording; countries that do not will need to add one. Progress will vary, so traders should follow transposition in their main target markets.

Transition: legacy national design rights can run to 2032

The Directive includes a transitional arrangement. Where, on 8 December 2024, a Member State's national law protected designs of this kind, that Member State continues to provide that protection until 9 December 2032 for designs whose registration was applied for before 8 December 2024. Commentators generally describe this as an eight-year transition. It produces a counter-intuitive result: in some countries, the exterior parts of older vehicle models may stay exposed to design rights for longer than the parts of newer models.

Why the rules will not be uniform for some years

Put the two dates together and the picture is clear. Until December 2027, transposition progress differs from country to country. Between 2027 and 2032, some countries may still maintain legacy national design rights. And national legislation and courts may interpret elements such as "dependent on appearance" and "duly informed" differently. So until at least 2032, "the EU has harmonised this" is only half true. When planning entry into a particular country, ask three questions: has it transposed the Directive, did it previously protect repair designs, and when were the designs covering your part applied for?

Are door handles must-match parts? The case for

This is the question door hardware traders care most about, and there is no settled answer; this article will not reach a conclusion on any specific part. The argument that an exterior door handle may be a must-match part runs roughly like this. The handle is part of the visible exterior of the vehicle. Its shape usually follows the lines of the door, the opening or recess in the door panel is fixed, and its colour and finish are coordinated with the body or trim. To restore a car with a broken handle to its original appearance, the replacement essentially has to be identical to the original; fit a handle of a different shape and the car no longer looks as it did. On this view, a handle is in a similar position to body panels and lamps.

The case against assuming coverage

There are also reasons to think an exterior door handle may not satisfy the condition that its design depends on the appearance of the vehicle. A handle is a relatively self-contained, highly functional small component. At the design stage the vehicle manufacturer could have chosen many different handle shapes, so the handle's form is not necessarily dictated by the look of the vehicle as a whole. A rights holder might argue it is closer to parts like wheel rims, whose appearance can be chosen. The dependency condition was written into the new text precisely to exclude parts whose appearance is a free choice, and how it applies to intermediate parts such as handles, mirror housings and trim strips will be shaped by national legislation and case law over time. The conclusion: get legal advice for your specific parts and target countries, and do not put "door handles are covered" into your sales messaging.

Hidden hardware: latches and window regulators

EU design law has long protected component parts only if they remain visible during normal use. Normal use means use by the end user, including customary actions such as opening and closing the doors, but excluding maintenance, servicing and repair. Window regulators and linkages hidden inside the door, and most of a latch mechanism, are generally not visible in normal use once fitted, so design rights are usually not the main issue and the repair clause changes relatively little for them. Whether a surface exposed when the door is opened counts as visible still has to be assessed part by part, and mechanical parts of this kind are more likely to involve patents. Inside handles, hood locks and tailgate handles are covered in separate articles on this site.

Packaging and branding: aligning with private-label practice

The consumer-information condition and good private-label packaging can be handled in one step: your own brand and manufacturer details take centre stage on the packaging, vehicle fitment is stated in words, and no carmaker badge or logo appears anywhere. For the rules on trademark use, OEM marks and cross-reference disclaimers, see this site's article on private-label packaging and branding; for how to present OEM part numbers as cross-references, see our OEM cross-reference guide.

Compliance checklist before selling into the EU

Before selling visible exterior parts into the EU, check the following. One: which target countries, whether each has transposed the Directive and whether it previously protected repair designs. Two: whether the part for the relevant model is covered by a registered design at EU level or in the target country, and whether that design was applied for before 8 December 2024. Three: whether the part is a repair part restoring the original appearance, not a styling part. Four: whether any carmaker badge or trademark remains on the part or in the tooling. Five: whether the product, packaging and listing clearly show your brand and the manufacturer. Six: whether descriptions use only "suitable for" or "compatible with" and never imply an original part. Seven: whether any patents are involved. Eight: whether product safety and other regulatory obligations have been confirmed. Nine: whether you have written advice from a lawyer in the target country on the points above.

What to ask your manufacturing partner for

Much of compliance depends on the supply side. When you request quotes or place orders, ask for traceable origin and manufacturer documentation, so you can state commercial origin truthfully; clean products and tooling with no carmaker badges, lettering or trademarks; labels and packaging printed to your brand and target-market requirements; and samples matching the original's appearance and dimensions for you to compare. Supplier audits and traceability are covered in a separate article on this site and are not expanded here.

Which exterior parts gain most

The typical examples cited by the European aftermarket groups that campaigned for the repair clause are body panels, headlamps and windscreens. These must match the original and are the items most often named in this debate, so they are the clearest beneficiaries. Intermediate exterior parts such as exterior door handles, tailgate handles, mirror housings and trim may also benefit if they are treated as must-match parts in the target country, but as discussed that remains a matter of interpretation. Hidden mechanical parts were less affected by design rights in the first place, so the reform changes less for them.

A realistic planning timeline

A practical planning rhythm looks like this. From now to 2027: audit the range, separate repair parts from styling parts, remove carmaker marks from parts and tooling, standardise origin labelling across packaging and listings, and follow transposition drafts in your main target countries. Around 9 December 2027: adjust label formats to the text each country actually adopts, and reassess items previously held back because of design-right risk. From 2027 to 2032: stay cautious with older vehicle models and watch for legacy design rights continued under the transitional arrangement in some countries. After 9 December 2032: the transition ends, but trademark, patent and product-regulation checks are still required.

Four common misreadings

First, believing "the EU has fully opened up visible parts" and ignoring the transposition deadline and the 2032 transition. Second, believing that because design rights are gone, carmaker trademarks can be used too. Third, selling styling or upgrade parts as repair parts. Fourth, believing that a lawful part needs no origin and manufacturer labelling on the product and packaging. Any one of these can defeat a defence that would otherwise have been available.

How HAO-GUO can help

HAO-GUO is a Taiwanese manufacturer and exporter of door and exterior hardware, including door handles, hinges, latches, hood locks, tailgate handles and window regulators for Japanese and European vehicles. For customers preparing to enter the EU, we can discuss origin and manufacturer documentation, products without carmaker marks, and labelling and packaging arranged to the customer's brand and market requirements. Whether the repair clause applies to a particular part in a particular country remains a question for the customer's legal adviser.

Disclaimer: this is not legal advice

This article provides industry information only and does not constitute legal advice. Design law is jurisdiction-specific: transposing legislation, transitional arrangements and court interpretation can differ between Member States and will change over time. This article makes no determination that any specific part may lawfully be sold in any country. Before manufacturing, importing or selling any visible exterior part, consult a local intellectual property lawyer about your specific product, target countries and sales model.