Proposal to update UN R27 in accordance with technological progress by establishing provisions for the use of fluorescent retro-reflective strip, enabling the consolidation of currently separate fluorescent (daytime) and retro-reflective (nighttime) striping.

Proposal to update UN R27 in accordance with technological progress by establishing provisions for the use of fluorescent retro-reflective strip, enabling the consolidation of currently separate fluorescent (daytime) and retro-reflective (nighttime) striping.

Combined GTB and CLEPA proposal, superseding documents GRE/2011/46 and GRE/2012/25, to update UN R27 in line with technological progress and performance-based methodologies. The main changes are:

a) Revised provisions to combine color boundaries for the night time color,
b) Replacement of Illuminant C with Illuminant D65 in the measurement of fluorescent materials,
c) Alternative methods introduced for instrumental measurement of the fluorescent color,
d) New Annex 10 to replace reference to ISO 105,
e) Clarification of the wind test (Annex 5),
f) Standardization of the test surface representing the road,
g) Simplification of the test device for clearance to the ground in Annex 3,
h) Amendment of COP requirements, and
i) 36-month transitional period in a new paragraph 14.

SLR informal group draft for the proposal of a new regulation consolidating all current regulations regarding retro-reflecting devices. This draft UN Regulation combines the provisions of the current Regulations Nos. 3, 27, 69, 70 and 104.