Guide To: ECE R38 - Rear Fog Lamps

UN ECE R38, or Regulation No. 38 of the Economic Commission for Europe of the United Nations, is a regulation that specifies the requirements for rear fog lamps (RFL) for power-driven vehicles and their trailers. These devices are used to improve visibility in fog or other conditions of reduced visibility.

UN ECE R38 applies to RFL that are either stand-alone or built into other light units, such as combination or multi-function lights. The regulation specifies the size, shape, color, and photometric performance of RFL. It also specifies the test methods that must be used to verify that RFL meet the requirements of the regulation.

UN ECE R38 is recognized by many countries around the world. This means that RFL that have been approved under UN ECE R38 can be used on vehicles in these countries.

Here are some of the key requirements of UN ECE R38:

RFL must be red in color. RFL must have a minimum size of 21 mm x 50 mm. RFL must have a minimum photometric performance. RFL must be mounted at a height of at least 250 mm and not more than 1,000 mm above the road surface. RFL must be mounted at a distance of at least 400 mm from the side of the vehicle. UN ECE R38 is an important regulation that helps to improve the safety of vehicles on the road. By requiring RFL to meet certain standards, the regulation helps to ensure that these devices are effective in improving visibility in fog or other conditions of reduced visibility.

Here are some additional points about UN ECE R38:

RFL must be marked with the UN ECE R38 approval number. RFL must be installed in a way that ensures that they are aligned correctly. RFL must be replaced if they are damaged or become defective.