UN ECE R38
Uniform provisions concerning the approval of rear fog lamps for power-driven vehicles and their trailers
| Issuing body | UNECE |
|---|---|
| Committees | UNECE (WP.29, GRE) |
| First issued | 1975 |
| Latest revision | 2013 |
| Status | active |
| Category | international |
| Topics | night_driving, signal_perception, vehicle_conspicuity, visual |
| Reference | https://unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/2013/R038r3e.pdf |
Scope
Approval of rear fog lamps for motor vehicles and trailers. Specifies the high-intensity red rear lamp that makes a vehicle perceptible to a following driver in fog at a useful distance, while limiting intensity to avoid being mistaken for a stop-lamp. Governs a key rear-conspicuity cue in low-visibility conditions. Performance for new types is now also covered by R148.
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