On 23/01/2020 15:26, NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 13:21, NY wrote:
"Brian Reay" wrote in message
...
On 23/01/2020 12:04, Jim GM4DHJ ... wrote:
Is it OK for rear fog lights to go off when the ignition is turned
off?....

Yes.

They should only be used on certain types of road (plus other
conditions), not for example in towns etc. Therefore you don't need
them when the engine is off!

Is there actually any prohibition from using them on certain types of
road. I though the only rule was the obvious one of "turn off rear
fog lights when the following car is so close that it will be dazzled
by them"?


Oh dear....

Rather than tutting, perhaps you'd like to point me to the exact
regulations. OK, so I omitted to say "only use them when it's foggy",
because I thought that was blindingly obvious, though many people seem
to use them even when it's completely clear (not even light mist).

Is there something in the highway code about classes of road or its
speed limit which regulates when they may or may not be used, despite
thick fog, subject always to the "don't dazzle" rule.

Rule 226 of the Highway Code says don't dazzle when using fog lights.
It's safe to assume you are more likely to dazzle when using fog lights
in town and thus in close proximity to other cars than when on rural
roads and from their think fog lights are not to be used in such conditions.