7. GRE noted the progress of the Informal Working Group “Simplification of the Lighting and Light-Signalling Regulations” (IWGSLR) and issues for consideration under step 2 of stage 2 of the simplification process (GRE-88-07), in particular:
Simplifying and improving the definition of an apparent surface.
Objective assessment of the actual functions as installed on the vehicle.
Where possible, harmonizing requirements with other regions.
Consistency among similar requirements and definitions in installation regulations.