Lights on

Ciao Hampshireman,
the 'lights on' law is not all that new. It came into force in July, but I can't remember exactly which year - about 3/4 years ago.
I would estimate that it is observed by about 80% of drivers. It doesn't seem to be enforced all that heavily; but of course in the case of an accident or whatever, and you weren't complying, then it would mean trouble.
I always comply on major roads outside our mountain enclave, and locally in bad weather.
saluti,
eddied