An E-mark is a type-approval marking that confirms a vehicle lamp has been tested against a UNECE regulation and passed for road use in any country that has signed the 1958 UNECE Agreement. Every road-legal vehicle lamp sold in the UK and Europe carries an E-mark on the lens or the housing. The mark identifies which country issued the approval, which UNECE regulation the lamp was tested against, and a unique approval number that ties back to the test certificate. This guide explains how to read the markings on a tractor headlamp, beacon, work lamp or rear lamp, what each regulation number covers, and what to do when a lamp has no mark at all.
What an E-Mark Is
An E-mark is the type-approval marking applied by a UNECE country to a vehicle lighting product that has been independently tested and certified to meet a specific UNECE Regulation. The mark proves that the lamp design meets the photometric, mechanical, electrical and material standards of the regulation it claims compliance with.
The mark is administered under the 1958 Geneva Agreement on uniform technical prescriptions for vehicles, signed by 64 countries (the European Union member states, the UK, Russia, Japan, Australia, South Korea, South Africa, Turkey and others). Each signatory country can issue approvals, and an approval issued by one signatory is automatically valid in every other signatory country. A headlamp approved in Germany (E1) is legal in the UK (E11). A beacon approved in the Netherlands (E4) is legal across the EU and the UK.
The mark sits on every road-legal vehicle lamp sold in the UK, including tractor headlamps, work lamps approved for road use, beacons, rear lamps, indicators, fog lamps, side markers, reflectors, position lamps and licence plate lamps. The mark is usually moulded into the lens or printed on a permanent label on the housing.
A lamp without an E-mark is not road-legal in the UK as a forward, rear, indicator or beacon lamp on a vehicle subject to the Road Vehicles Lighting Regulations 1989. A lamp marked “for off-road use only” or “show use only” carries no approval and is sold for tractor field use, race use or display use only.
The system is independent of EU membership. The UNECE Agreement is a UN treaty, not an EU treaty. The UK continued to recognise and issue ECE approvals after leaving the EU in 2020, and continues to participate in the UNECE Working Party on Vehicle Lighting (WP.29) as an active member.
How to Read an E-Mark
An E-mark follows a fixed format: the letter E inside a circle, a country code number next to or below the circle, a UNECE regulation number, and a five or six-digit approval number unique to the manufacturer’s test certificate.
A typical reading runs left to right: “E11 R7 02 12345”. The breakdown is:
- “E11” identifies the country that issued the approval. E11 is the United Kingdom (the Vehicle Certification Agency, VCA).
- “R7” identifies the UNECE Regulation number. Regulation 7 covers position, stop and end-outline marker lamps.
- “02” identifies the revision of the regulation the lamp was tested to. Each regulation goes through periodic updates, and the revision number proves the test used the current series.
- “12345” is the approval number issued to the manufacturer for this specific lamp model.
A second variant uses a small “e” inside a rectangle instead of a capital E inside a circle. The small “e” mark is the EU Whole Vehicle Type Approval mark, applied under EU framework directives. The two marks both signify road-legal approval but originate from different legal frameworks.
Some lamps carry both marks. A premium tractor headlamp from Hella might carry “E1 02 R112 045678” on the lens (ECE R112 headlamp approval from Germany) plus an “e1 045678” rectangle (EU whole-vehicle equivalent). Both marks indicate road-legal status.
Multiple ECE approvals can appear on one lamp when the lamp combines functions. A combination rear lamp that includes a stop function, a tail function, a turn indicator and a reflector might show “E11 R7 R6 R3 02 12345” with R7 covering the stop and tail, R6 covering the indicator and R3 covering the reflector. Each function carries the relevant regulation number.
The font, layout and size vary by manufacturer, but the format elements are fixed. A mark missing the country code, missing the regulation number, or missing the approval number is not a valid E-mark.
ECE Country Codes
Each UNECE signatory country issues approvals under a unique numeric code. The country code identifies which national approval authority issued the certificate.
The most common country codes seen on agricultural lighting in the UK are:
| Code | Country | Common on |
|---|---|---|
| E1 | Germany | Hella, Bosch, Osram, ZKW |
| E2 | France | Valeo, Vignal |
| E3 | Italy | Carello, Cobo |
| E4 | Netherlands | Vignal, Wesem |
| E5 | Sweden | Nordic Lights, SBF |
| E6 | Belgium | Belgium-issued generic |
| E7 | Hungary | Hungary-issued aftermarket |
| E9 | Spain | Industrias Velasco, Caretta |
| E11 | United Kingdom | Lucas, Britax, Lazer Lamps |
| E13 | Luxembourg | Some Continental brands |
| E17 | Finland | Finnish work-lamp brands |
| E20 | Poland | WAS, FT-Productions |
| E21 | Portugal | Portuguese suppliers |
| E22 | Russia | Russian-issued certificates |
| E23 | Greece | Greek-issued approvals |
| E24 | Ireland | Irish-issued approvals |
| E26 | Slovenia | Hella Slovenia plant |
| E27 | Slovakia | Slovak-issued approvals |
The full list runs to 64 countries. The number does not relate to the country of manufacture. A Chinese-built work lamp can carry an E4 (Netherlands) approval if the Dutch type-approval authority issued the certificate based on tests at an accredited European test house. A Polish-built rear lamp can carry an E11 (UK) approval if VCA issued the certificate.
The country code does not affect legal validity. An E1, E11, E13 or E27 mark on a tractor lamp all carry equal weight in UK law. The driver does not need to check the country, only that a valid mark is present.
The ECE Lighting Regulations That Matter Most
UNECE lighting regulations are numbered consecutively, with each regulation covering a specific lamp type or function. The regulations most relevant to agricultural lighting are:
| Regulation | Coverage |
|---|---|
| R3 | Retro-reflecting devices (reflectors) |
| R4 | Rear registration plate lamps |
| R6 | Direction indicator lamps |
| R7 | Position lamps, stop lamps, end-outline marker lamps |
| R10 | Electromagnetic compatibility (EMC) of vehicles and components |
| R19 | Front fog lamps |
| R23 | Reversing lamps |
| R37 | Filament lamps (bulbs) |
| R38 | Rear fog lamps |
| R48 | Installation of lighting and light-signalling devices on a vehicle |
| R50 | Lamps for mopeds and motorcycles |
| R65 | Special warning lamps (beacons) |
| R87 | Daytime running lamps (DRLs) |
| R98 | Headlamps with gas-discharge (HID/xenon) light source |
| R99 | Gas-discharge light sources for headlamps |
| R112 | Headlamps with asymmetric passing beam (halogen and LED) |
| R113 | Headlamps with symmetric passing beam |
| R119 | Cornering lamps |
| R123 | Adaptive front-lighting systems (AFS) |
| R128 | LED light sources |
| R148 | Light-signalling devices (consolidated, replaces R6, R7, R23, R38, R77, R87, R91) |
| R149 | Road illumination devices (consolidated, replaces R19, R98, R112, R113, R119, R123) |
Two regulations matter on every modern agricultural lamp: R10 and the function-specific regulation. R10 covers EMC and applies to any lamp containing electronics (every LED lamp, every LED beacon, every modern work lamp). The function-specific regulation covers the optical and photometric performance. A road-legal LED work lamp used on a tractor for road work must carry both R10 and a function-specific approval such as R112 or R148.
R65 is the regulation that matters most for beacons. A road-legal tractor beacon must carry an R65 approval, with a Class 1 marking for lower-output beacons and a Class 2 marking for high-output beacons used on slow-moving and oversized vehicles. The class marking appears next to the R65 number on the lens.
R148 and R149 are the new consolidated regulations introduced in 2018 that bundle multiple older regulations into a single document. New product approvals from 2020 onwards increasingly cite R148 or R149 rather than the individual older numbers. Both old and new approvals remain valid.
The Difference Between an E-Mark, an e-Mark and DOT/SAE
The capital E inside a circle (E-mark) is the UNECE type approval. The lowercase e inside a rectangle (e-mark) is the EU type approval. DOT and SAE markings are the United States approval system. The three systems are separate and not interchangeable in UK law.
The UNECE E-mark is the dominant system in the UK and Europe. Every road-legal lamp sold in the UK carries an E-mark, regardless of EU status, because the UK remains a signatory to the 1958 UNECE Agreement.
The EU e-mark covers Whole Vehicle Type Approval and component approvals issued under EU framework directives. Many lamps carry both an E-mark and an e-mark, with the e-mark added to comply with EU directives at the point of fitment to a complete vehicle.
DOT (Department of Transportation) and SAE (Society of Automotive Engineers) approvals are the US system. A lamp marked “DOT” or “SAE J” with a number on the lens is approved for road use in the United States. The marking does not carry weight in the UK for vehicles registered on or after 1 April 1986. The Road Vehicles Lighting Regulations 1989 accept SAE-marked lamps as compliant on vehicles registered before that date, under the heritage provisions for classic vehicles imported from the US.
Some classic US tractor sealed beam units carry SAE-only markings. These remain legal on the vehicles for which they were originally fitted (1960s and 1970s US-built tractors registered in the UK before April 1986). A replacement SAE lamp on a 1980s US tractor that came to the UK in 1990 is not strictly legal without an additional ECE-marked equivalent.
Lamps from far-eastern manufacturers occasionally carry markings that look like an E-mark but do not match the format. A circle around “E” with no country number is not a valid mark. A circle around “CE” (the European product safety mark for general goods) is not a vehicle lighting approval. A “GB” or “UK” wording without the E-in-circle is not an approval mark.
What Happens When a Lamp Has No Approval Mark
A lamp with no E-mark is sold for off-road use only and is not legal to use on a UK road as a forward, rear, indicator or warning lamp. The use of an unapproved lamp on a road vehicle is an offence under Construction and Use Regulation 100 and the Road Vehicles Lighting Regulations 1989.
The legal position varies by lamp function. An unapproved headlamp on the front of a tractor used on the road is a clear offence, with the lamp failing to provide road-legal forward illumination. An unapproved beacon is an offence, with the beacon failing the R65 requirement that applies to any beacon used on a road-going vehicle subject to beacon law. An unapproved work lamp fitted to a tractor and switched off when on the road is not an offence, because the lamp is not being used as a forward-facing road lamp.
The practical enforcement focuses on lamps that are being used, not lamps that are simply fitted. A police roadside check finds the offences when the unapproved lamp is on at the time of the check. A tractor at the roadside with an unapproved LED light bar switched off on the cab roof rarely attracts a ticket. The same tractor with the bar lit while on a public road attracts an offence ticket under Regulation 27 (use of front lamps) plus the unapproved-lamp offence under Construction and Use 100.
The penalty for an unapproved lamp is typically a Fixed Penalty Notice of GBP 50 to GBP 100, plus the requirement to remove the lamp from the vehicle. Repeat offences or MOT fails for unapproved lamps escalate to summons proceedings with higher fines.
The MOT lighting inspection includes a check for approval marks on every lamp in scope of the test. A vehicle presented for MOT with an unapproved headlamp, beacon or other regulated lamp fails the test. The fail item reads “lamp not of an approved type” or “lamp missing required approval marking”.
The buyer’s defence is to check the approval mark before buying. Every reputable agricultural lighting supplier publishes the approval markings on the product listing. A lamp listed as “ECE R112 approved” or “R65 Class 2 approved” carries the mark on the product. A lamp listed only as “high quality LED” or “professional grade” without specific approval markings often turns out to be off-road only.
How to Check Approval Marks on Agricultural Lighting
Checking approval markings on agricultural lighting takes three steps: look at the lens or housing, identify the regulation number, and match it to the intended use.
The first step is the physical inspection. The mark is moulded into the lens face on most modern lamps. On lamps with no lens marking, the mark sits on a label on the housing or on the rear of the lamp body. A torch held at an angle to the lens reveals the moulded marking that is hard to see in direct light. A photograph with the flash on captures the mark clearly for later review.
The second step is identifying the regulation number. The “R” number after the country code identifies what the lamp is approved as. R7 is a position, stop or end-outline lamp. R65 is a beacon. R112 is a headlamp. R23 is a reversing lamp. R38 is a rear fog. R19 is a front fog. The list in the section above covers the most common agricultural lighting regulations.
The third step is matching the approval to the intended use. A lamp with an R7 approval is approved as a position, stop or end-outline marker only. Fitting an R7 lamp as a reversing lamp does not make the reversing function legal, because R7 does not cover reversing. A lamp with both R7 and R23 markings is approved for both functions. A combination lamp fitted into the rear of a trailer must carry approvals for every function the lamp performs.
Class markings add detail to some regulations. R65 carries Class 1 and Class 2 markings that indicate the beacon’s flash intensity. R112 carries Class A (motorcycles) and Class B (cars and other vehicles) markings. The class marking sits next to the regulation number, in the format “E1 R65 Class 2 02 12345”.
Multi-voltage lamps carry voltage range markings near the approval mark. A lamp marked “10-30V” or “9-32V” is approved for use on 12V and 24V systems. A lamp marked “12V only” or “24V only” is approved for that voltage only, with the fitting on the wrong voltage system invalidating the approval.
The reputable agricultural lighting brands (Hella, Britax, Vignal, LED Autolamps, Lazer Lamps, Nordic Lights, Lucas, Wesem) print the approval marking clearly on every road-legal product. The product datasheet on the manufacturer’s website lists every approval the lamp carries. A buyer who needs to be sure of road-legal status can check the datasheet before ordering, then verify the marking on the lamp when it arrives.
Related Articles
- The UK agricultural vehicle lighting law guide covers the wider legal framework.
- Road Vehicles Lighting Regulations covers the primary UK legislation.
- ECE R65 beacons explains the beacon-specific regulation in detail.
- EMC compliance for LED tractors covers ECE R10 and electronic interference.
- LED light bars road legal UK covers the legal position on LED bars.
- Tractor road legal lights covers the minimum legal lighting kit for road use.
- Shop the full range of approved agricultural lighting with E-mark certification on every road-legal product.