Proposal as adopted by the Working Party on Lighting and Light-Signalling at its 67th session to introduce provisions for the use of light-emitting diode (LED) light sources per the draft UN R127 (documents WP.29/2010/44 and Corr.1) and amending the inward visibility angle of front position lamps.
UN R50: Proposal for a new Supplement to the 01 series of amendments
Proposal to align the angle of visibility requirements for rear position lamps with the angle of visibility requirements for front position lamps. This proposal corresponds with a related proposal on Regulation No. 53 (GRE/2018/28).