Proposal to clarify the marking requirements for headlamp functions.

Proposal to improve the accuracy of the instrumental aiming method.

Proposal to prohibit the inclusion of a manufacturer logo in headlamps under UN R149 and to limit the approval of light-signalling devices with a logo to the 01 series of amendment of UN R149 under UN R48.

Proposal to a new paragraph 4.20. in UN R149 to clarify that road illumination devices shall not incorporate a manufacturer logo and to specify under Annex 5 of UN R150 (requirements for the shape of the illuminating surface of retro-reflective devices) that for classes IA, IB and IVA, these requirements do not permit the shape to represent a manufacturer logo.