SOURCE-LINKED REGULATION GUIDE
UN R98 — Gas-discharge headlamps
Review headlamps that use gas-discharge light sources.
Explore the scopeWhat does it cover?
UN R98 concerns headlamps using gas-discharge light sources. Its scope concerns the headlamp and the specified vehicle categories; approval of the light source is a separate matter.
Who is it for?
Headlamp and vehicle-lighting manufacturers.
Which subjects are addressed?
- Gas-discharge headlamp
- M and N vehicles
- L3 vehicles
- Headlamp versus source
Common question
How does R98 differ from R99?
R98 addresses the headlamp using a gas-discharge source; R99 addresses the source intended for approved lamps.
Source documents and references
Work with this regulation in RegsUP.
Read the text with its edition and sources. Assess available comparisons, relevant dates and question-and-answer features against your work needs.
Discuss access optionsRelated regulations
UN R99 — Gas-discharge light sources
Assess light sources for approved lamps by category.
UN R149 — Road-illumination devices and systems
Explore headlamp, fog-lamp and adaptive-lighting functions within their own scopes.
UN R48 — Installation of lighting and light-signalling devices
Review how approved lamps are used on the vehicle.