SOURCE-LINKED REGULATION GUIDE
UN R28 — Audible warning devices
Review horns and warning systems together with installation on the vehicle.
Explore the scopeWhat does it cover?
UN R28 covers approval of audible warning devices, warning systems and multiple warning systems. Devices powered by direct or alternating current or compressed air are addressed for the defined vehicle categories. Part I concerns device or system approval; Part II concerns installation on a vehicle.
Who is it for?
Horn and warning-system makers and vehicle electrical or pneumatic integration teams.
Which subjects are addressed?
- Audible warning device
- Multiple warning system
- Power sources
- Vehicle installation
Common question
Does approval of a horn also complete vehicle installation?
No. Device or system approval and installation on the vehicle are covered in separate parts. Review the vehicle-side requirements as well.
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.
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