Why do some local directional signs have blue borders?
You may still see old signs on the highway with blue borders. Originally, they were meant to denote local destinations, but there was confusion as to the exact definition of a ‘local destination’. Subsequently, in 1994 the blue borders were dropped from the regulations in favour of using black borders, as per non-primary route signs. Any of these signs still on the public highway therefore DO NOT comply with the regulations and must be replaced before 01/01/2015.
