Vehicle electrical and electronic equipment can sit under EU vehicle legislation, the EMC Directive, or a separate radio-equipment route depending on how it is supplied and installed.
Use this page to document the boundary between vehicle type-approval evidence and EMC Directive apparatus evidence without treating every in-vehicle accessory the same way.
Structured answer sets in this page tree.
Cited legal and guidance references.
For vehicle equipment, the key EMC Directive question is whether electromagnetic compatibility is already dealt with more specifically by EU vehicle legislation. Article 2(3) of Directive 2014/30/EU says the EMC Directive does not apply, or ceases to apply, where the same essential requirements are laid down more specifically by other Union legislation. Commission vehicle-equipment guidance then separates complete vehicles, OEM spare parts, aftermarket equipment tied to UNECE Regulation 10 functions, other aftermarket equipment, and accessories that are simply used in vehicles.
The Commission guidance endorsed by the EMC Working Party frames the boundary as a category exercise for vehicle equipment. Vehicles in categories L, M, N, T and O, and equipment forming part of those vehicles when vehicle legislation applies, require EU vehicle-legislation approval for EMC and do not use an EMC Directive declaration of conformity for that same EMC question.
A matching OEM spare part can also fall outside both routes when it is intended for the original vehicle, clearly marked as a spare part by an identification number, and identical and from the same manufacturer as the corresponding OEM part for an already type-approved vehicle.
Aftermarket equipment needs closer review. If it falls within EU vehicle legislation, is within UNECE Regulation 10, is related to the Regulation 10 immunity-related functions, and is not the OEM spare-part case, the vehicle-approval route applies and the EMC Directive declaration route does not. If the aftermarket equipment is intended for installation in motor vehicles but is not related to those Regulation 10 functions, the Commission table points to an EMC Directive declaration of conformity instead.
Use this boundary page to document why a vehicle accessory follows EU vehicle legislation, the EMC Directive, RED, or a blocked evidence path that needs vehicle-specific sourcing.
The boundary is not a choice of the easier evidence file. If the equipment is in the vehicle-approval side of the Commission table, the useful compliance file is the vehicle-specific approval evidence, Regulation 10 classification, affected vehicle category, and installation conditions. An EMC Directive technical file alone does not answer the type-approval question.
For aftermarket electrical or electronic sub-assemblies, the Commission guidance points users to a Regulation 10 classification flow. The first questions are whether the ESA is intended for fitment in vehicles and whether it is passive. The flow then considers restrictions to immobilised-vehicle use, charging-coupling functions, wiring-harness connection, type-approved interfaces, and whether the item is mechanically fastened in a way that cannot be removed without tools.
When the available EMC grounding does not include the underlying vehicle-approval certificate, UNECE Regulation 10 test basis, or vehicle-category analysis for the exact product, treat those as separate source needs before publishing a final boundary conclusion.
The vehicle-equipment guidance expressly says it does not make a Radio Equipment Directive table because the RED does not contain the same Article 2(3)-style exception. That means a connected vehicle accessory may need a RED analysis in addition to the vehicle or EMC Directive boundary exercise when it intentionally transmits or receives radio waves.
The EMC guide states that equipment falling within the scope of the RED is not under the EMC Directive, even though the RED includes EMC essential requirements. The same guide also notes that products no longer covered by RED, such as pure wired telecom terminal equipment, may fall back to the LVD or EMC Directive if those regimes otherwise apply.
For non-radio electrical equipment, keep the analysis narrow: identify whether another EU product law lays down EMC requirements more specifically, then decide only the EMC Directive consequence for that requirement. Safety, cybersecurity, vehicle-roadworthiness, battery, or radio obligations may still need their own source-linked files.
A useful boundary file should be able to show why a reviewer should rely on vehicle approval, EMC Directive apparatus evidence, RED evidence, or a separate unresolved vehicle-specific source request. The file should not stop at a label such as automotive accessory or aftermarket device.
For EMC Directive apparatus, the Directive requires technical documentation, the relevant conformity assessment procedure, an EU declaration of conformity, CE marking where applicable, and retention of the technical documentation and EU declaration for 10 years after the apparatus has been placed on the market. The declaration must be kept aligned when design characteristics or harmonised standards used for conformity change.
For vehicle-side conclusions, keep the source that proves the vehicle route: type-approval references, Regulation 10 category and paragraph references, fitment and wiring evidence, spare-part identity evidence, and the reason an EMC Directive declaration is not the controlling evidence for that EMC requirement.
"keep the technical documentation and the EU declaration of conformity"
"does not include a similar exception"
"unambiguously correlate with the DoC"