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If anyone is inclined to read it is available here as the directive, but does not only include DRL but also Emergency Stop Signals (ESS) and other items.
The rules are that all new cars will have to have them applied and on by the 7 Feb 2011 (With effect from 7 February 2011 for vehicles of categories M1 and N1)
Various European Countries have already taken steps to make it a legal requirement to have DLRs on all the time, even before the Commission passed the new legislation.
12 countries required drivers to drive with their headlights on all year round including Sweden since 1977, Iceland, Latvia, Macedonia and Norway since around 1980, Denmark since 1990 and Romania, Slovenia and parts of Portugal since 1998.
Four – Lithuania, Poland, Slovakia and the Czech Republic – required this in the winter only while Hungary and Italy required daytime running lights outside built up areas.