In article ,
nightjar wrote:
On 26/03/2021 13:11, jim GM4DHJ ... wrote:
do fog lights and especially rear fog lights require a warning light
that they are on ?

They have done since at least the 1961 lighting regulations, possibly
earlier.

Still doesn't stop plenty idiots leaving them on. ;-)

--
*Women who seek to be equal to men lack ambition.

Dave Plowman London SW
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