UN Regulation No. 20
H4 Halogen Headlamps

Uniform Provisions Concerning the Approval of Motor Vehicle Headlamps Emitting an Asymmetrical Passing Beam or a Driving Beam or Both and Equipped with Halogen Filament Lamps (H4 Lamps)

Series of Amendments and Supplements
Revisions and Amendments
Fifty Contracting Parties
Related groups: GRE
Latest Documents
2 Jan 2016
Contracting Parties applying forward lighting regulations | SLR-07-06/Annex1
2016-01-02 2016-01-02
6 Mar 2013
Canadian unilateral application of certain UN Regulations | WP.29-159-03
2013-03-06 2013-03-06