7. The experts of the Informal Working Group “Simplification of the Lighting and Light-Signalling Regulations” (IWG SLR) reported on their activities (GRE-92-22).

8. IWG SLR reported on the principle “prohibited if not allowed” for the lamp installation and proposed amendments to prohibit, for the purposes of granting type approval according to UN Regulation No. 48, fitting of any device or function which are not explicitly mentioned in this Regulation, except for warning lamps (UN Regulation No. 65) and new technologies installed according to Schedule 7 of the 1958 Agreement.

9. Several GRE experts pointed out that a separate reference to Schedule 7 was not needed, because this Schedule provides for a general exclusion for new technologies in the 1958 Agreement and, therefore, overrules provisions of any individual UN Regulation.

10. The Chair recalled paragraph 5.22. of UN Regulation No. 48 about lamps that are deemed not to be present (for example, disabled by software) and expressed the view that such lamps, if factory-installed, may not be part of UN Regulation No. 48 approval, but should not invalidate approval under UN Regulation No. 48.

9. The expert of IWG SLR also sought guidance on the principle “prohibited if not allowed” for the lamp installation according to UN Regulation No. 48 (GRE-91-02) and proposed three different options to incorporate this principle (GRE-91-22). Several experts from Contracting Parties expressed general preference for options A or C, but no final wording was agreed. GRE decided to revert to this issue at the next session. In the interim, experts were invited to send their comments to IWG SLR.