Key to decoding the combinations of numbers and letters on marker and signal lamps.
| The most frequent codes used in 37 countries which approve headlamps and combination rear lamps according to ECE regulations are as follows: |
Combination rear lamp versions: | |||
| E1 | » Germany | A | » Marker lamp | |
| E2 | » France | AR | » Reversing lamp | |
| E3 | » Italy | F | » Rear fog lamp | |
| E4 | » Netherlands | la | » Reflex reflector | |
| E5 | » Sweden | R | » Tail lamp | |
| E6 | » Belgium | S1 | » Stop lamp | |
| E7 | » Hungary | 1, 1a, 1b: | » Front flasher lamp (various technical versions) |
|
| E8 | » Czech Republic | 2a | » Rear flasher lamp | |
| E9 | » Spain | 5 | » Repeater flasher lamp (for vehicles up to 6 metres long) | |
| E10 | » Serbia and Montenegro | 6 | » Repeater flasher lamp (for vehicles longer than 6 metres) | |
| E11 | » United Kingdom | SM1 | » Side marker lamps (for all vehicles) | |
| E12 | » Austria | SM2 | » Side marker lamps (for vehicles with length up to 6 metres) | |
| E13 | » Luxembourg | RL | » Daytime running lamps | |
| E14 | » Switzerland | |||
| E24 | » Ireland | |||
Symbol and Marking Location on Marker and Signal Lamp
| R-S1 |
|
| Lamp version: R = Tail lamp S1 = Stop lamp |
|
| 02 | |
| Lamp version: fulfils regulation amendment 02 |
|
| E4 | |
|
Type of approval and location: |
|
| 11391 | |
| Type test number to ECE regulation |
