| The most frequent codes used in 51 countries which approve headlamps and combination rear lamps according to ECE regulations are as follows: | Headlamps | Combination rear lamp versions | |||||
| The letter E is followed by the number of the country that has granted type approval. | a) Version | ||||||
| E1 | Germany | A: | Marker lamp | A: | Marker lamp | ||
| E2 | France | B: | Fog lamp | AR: | Reversing lamp | ||
| E3 | Italy | C: | Dipped beam | F: | Rear fog lamp | ||
| E4 | Netherlands | R: | Main beam | IA: | Reflex reflector | ||
| E5 | Sweden | CR: | Main and dipped beam | R: | Tail-lamp | ||
| E6 | Belgium | C/R | Dipped beam or main | S1: | Stop lamp | ||
| E7 | Hungary | beam | 1, 1a, 1b: | Front flasher lamp | |||
| E8 | Czech Republic | HC: | Halogen dipped beam | (various technical versions) | |||
| E9 | Spain | HR: | Halogen main beam | 2a: | Rear flasher lamp | ||
| E10 | Former Yugoslavia | HCR: | Halogen main beam | 5: | Repeater flasher lamp (for | ||
| E11 | United Kingdom | and dipped beam | vechicles up to 6 metres | ||||
| E12 | Austria | HC/R: | Halogen main beam | long) | |||
| E13 | Luxembourg | or dipped beam | 6: | Repeater flasher lamp (for | |||
| E14 | Switzerland | DC: | Xenon dipped beam | vechicles up to 6 metres | |||
| E15 | (Currently vacant) | DR: | Xenon main beam | long) | |||
| E16 | Norway | DC/R | Bi-Xenon | SM1: | Side marker lamps (for | ||
| E17 | Finland | /: | Cannot be switched | all vechicles) | |||
| E18 | Denmark | on simultaneously | SM2: | Side marker lamps (for | |||
| E19 | Romania | vechicles with length up to | |||||
| E20 | Poland | 6 metres) | |||||
| E21 | Portugal | b) Driving side | |||||
| E22 | Russia |  No arrow: |
Left-hand traffic Left or Right-hand traffic Right-hand traffic |
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| E23 | Greece | ||||||
| E24 | Ireland | ||||||
| E25 | Croatia | ||||||
| E26 | Slovenia | ||||||
| E27 | Slovakia | ||||||
| E28 | Belarus | ||||||
| E29 | Estonia | ||||||
| E30 | (Currently vacant) | ||||||
| E31 | Bosnia-Herzegovina | ||||||
| E32 | Latvia | ||||||
| E33 | (Currently vacant) | ||||||
| E34 | Bulgaria | ||||||
| E35 | (Currently vacant) | ||||||
| E36 | (Currently vacant) | ||||||
| E37 | Turkey | ||||||
| E38 | (Currently vacant) | ||||||
| E39 | (Currently vacant) | ||||||
| E40 | Yugoslavia-Macedonia | ||||||
| E41 | (Currently vacant) | ||||||
| E42 | Special EC | ||||||
| E43 | Japan | ||||||
| E44 | (Currently vacant) | ||||||
| E45 | Australia | ||||||
| E46 | Ukraine | ||||||
| E47 | South Africa | ||||||
| E48 | New Zealand | ||||||
| E49 | Cyprus | ||||||
| E50 | Malta | ||||||
| E51 | Republic of Korea | ||||||
