According to this Edge piece, the BBFC is taking legal advice over ELSPA's newly announced traffic light ratings symbols.
“Our classification symbols have been colour-coded since 1982. They’re very widely recognised, and in fact they are trademark and copyright protected,” said a rep.
“We’re happy for ELSPA to make sensible improvements, but not if they encroach on the protection of the BBFC’s symbols. We have these symbols using colours, using circles and using numbers, so we are now taking legal advice.”
Whoops. More through the link.