No exemption shall be permitted in respect of the number, the essential design characteristics, the electrical connections, and the colour of light emitted or retro-reflected of the lights and signalling devices referred to in items 21 to 26 and in items 28 to 30.
I gcás na soilse agus na bhfeistí comharthaíochta dá dtagraítear in ítimí 21 go 26 agus in ítimí 28 go 30, ní cheadófar aon díolúine maidir le líon, bun-saintréithe deartha, naisc leictreacha, ná dath an tsolais a astaítear nó a ais-fhrithchaitear.