Proposal to differentiate light source modules in cases where a signalling device contains more than one different module, to restore the sequential activation of direction indicators of categories 11, 11a, 11b, 11c and 12, which were included in UN Regulation No. 50 but omitted when UN R148 was developed during SLR Stage 1, to delete a footnote indicator, and to delete characters from a figure on the standard light distribution of devices.