When the 01 series of amendments to Regulation No. 123 was introduced to convert the photometric requirements from illuminance E (lux) to luminous intensities I (cd), some changes from E_max to I_max were overlooked. This amendment introduces the necessary corrections. The proposal also amends Annex 3, Table 2 to allow sub-classes of Class C to lower the cut-off position to give the opportunity to adapt to foggy weather conditions and thus avoid glare and increase safety.

This collective amendment on the stability of photometric performance during the heat test, with particular reference to the movement of the cut-off line, clarifies the test cycle and also aligns the requirements of Regulations Nos. 19, 98, 112, 113 and 123. In addition to resolving problems of interpretation presented by the current text, this collective amendment will assist the Informal Working Group “Simplification of Lighting and Light-Signalling Regulations” in drafting the new simplified Regulations which is underway.

Supplement 3 to the 01 series of amendments to UN R 98, 112, and 123 deleted the measurement point HV from the photometric requirement table. The HV measurement point, however, remains a requirement for checking photometric stability. This proposal removes the HV measurement point from the photometric stability requirements for the passing beam. The HV measurement point remains a valid for the driving beam.

During its 69th session, GRE adopted proposals to update the Conformity of Production (CoP) procedures for lighting and light-signalling devices, but decided to await the work of a GTB task force on the simplification of CoP provisions for AFS before addressing UN R123. This proposal amends the CoP procedures in line with those agreed for UN R112 (document GRE/2013/37) to create simplified photometric CoP tables for each class (C, V, W, E, R, RADB) with its applicable 0/20/30 per cent limits. Furthermore, the task force clarified which tests are necessary for CoP testing and which are necessary only for type approval testing. The methods and requirements for the “initial” type approval remained unchanged. An overview of the main AFS characteristics can be found in documents GRE-48-28 and GRE-48-30.

This collective amendment extends the usage of LED light sources of UN R128 to front lighting Regulations Nos. 19, 98, 112, 113 and 123 (as presented in the previous session document GRE-75-14). The proposal would allow for the use of regulated replaceable LED light sources according to Regulation No. 128 in all applications where the use of LED modules is already permitted.