Proposal to allow for the use of different brake lamp activation methods for Powered Two Wheelers (PTWs). This amendment also introduces the concept of a high-mounted stop lamp to PTWs to improve the conspicuity of the vehicles during stopping.

Proposal as approved by the GRE to allow for the installation of interdependent lamps for L3 category vehicles. The amendment also reflects recent amendments to Regulation No. 48, Supplement 2 to its 06 series of amendments and further includes some editorial corrections of current Regulation No. 53 texts. The concern is that the rear trunk lid commonly used for four-wheeled vehicles may be adapted for future scooter type motorcycles to secure the storage space for helmet, etc. Current lamp requirements impose design constraints that may hamper the proper development of such storage features. Please note that the title of this document has been corrected to Supplement 17. Supplement 15 was adopted under Amendment 1 to Revision 3 of UN R53.

Correction of the title to “Supplement 17” from the erroneous “Supplement 15”.

Proposal to allow for the approval on motorcycles of light-signalling devices with light sources that can be sequentially activated and of emergency stop signals.

Proposal to delete references to UN R113 Class B headlamps from the regulation.

Proposal to remove restrictions that impede the use of bend lighting on motorcycles. UN R53 currently prohibits the use of additional lighting units when the driving beam is in use. This requirement unnecessarily restricts the use of ALU to improve road illumination at night when the motorcycle is banking through a turn.

Proposal to remove restrictions that impede the use of bend lighting on motorcycles. UN R53 currently prohibits the use of additional lighting units when the driving beam is in use. This requirement unnecessarily restricts the use of ALU to improve road illumination at night when the motorcycle is banking through a turn.

Proposal to clarify conditions under which direction indicator lamps may be switched ON to indicate the status of the device to prevent unauthorized use and to include provisions for exterior courtesy lamps on motorcycles under UN R53 (as is already the case for motor vehicles under UN R48).

Proposal to clarify conditions under which direction indicator lamps may be switched ON to indicate the status of the device to prevent unauthorized use and to include provisions for exterior courtesy lamps on motorcycles under UN R53 (as is already the case for motor vehicles under UN R48).

Proposal to

• align UN R50 and UN R53 regarding the inward geometric visibility requirements for rear position lamps;
• to allow the use of different stop lamp activation methods for powered two-wheelers as currently applicable for four-wheelers; e.g. by the application of a retarder or a similar device.
• restore the definition of “device” (because the definition under UN R53 differs from that under UN R48)
• delete the definitions of “bend lighting”, “H plane”, “sequential activation” and “emergency stop signal” (because they are identical to the definitions in UN R48), and
• introduce requirements for light emitting diode (LED) substitute light sources.

Proposal to introduce requirements for automatic switching from DRL to headlamp(s) if the maximum luminous intensity of DRL is above 700 cd and to restore the original automatic headlamp ON (AHO) requirement for vehicles not equipped with daytime running lamps (DRL) modified by the 03 series.

Proposal to align UN R50 and UN R53 regarding the inward geometric visibility requirements for rear position lamps, to allow the use of different stop lamp activation methods for powered two-wheelers as currently applicable for four-wheelers; e.g. by the application of a retarder or a similar device, and to make editorial corrections.

Proposal to correct cross references to definitions as modified by Supplement 2 to the 02 series of amendments.

Proposal to correct cross references to definitions as modified by Supplement 2 to the 02 series of amendments.

Proposal to clarify the electrical connection requirements for a white front position lamp reciprocally incorporated with the front direction indicator.

Proposal to clarify the electrical connection requirements for a white front position lamp reciprocally incorporated with the front direction indicator.

Proposal to clarify the electrical connection requirements for a white front position lamp reciprocally incorporated with the front direction indicator.

Proposal to enable the phasing out of the installation of older lamps and devices pursuant to the simplification of lighting regulations (UN R148, 149, and 150).

Proposal from GRE to add references to the headlamp classes under the program for the Simplification of Lighting Regulations and to allow the installation of Adaptive Driving Beams (ADB) on vehicles of category L₃.

Proposal to enable the use of Rear-End Collision Alert Signal (RECAS) on vehicles of category L₃.

Proposal to enable the use of Rear-End Collision Alert Signal (RECAS) on vehicles of category L₃.

Proposal from GRE to add references to the headlamp classes under the program for the Simplification of Lighting Regulations.

Proposal from GRE to add references to the headlamp classes under the program for the Simplification of Lighting Regulations.

Proposal to enable the use of Rear-End Collision Alert Signal (RECAS) on vehicles of category L₃.

Proposal to introduce provisions for adaptive front lighting systems (AFS) for motorcycles.

Proposal to introduce provisions for adaptive front lighting systems (AFS) for motorcycles.