Maz, you should know by now that Durham FA is a higher power than the International Olympic Committee!
I'd be interested to know on what grounds this decision has come about. Or why? As someone noted, I can understand if they banned it altogether due to it being difficult to remove following a leg injury, however I can't see any other reason why? Players in the Premier League and everywhere else in the World's Top Leagues play with tape on their socks - to me white and black goes with everything really. Maybe the powers that be think it isn't 'fashionable' or 'cool'?! Maybe Gok Wan has gained a job within the FA?!
In seriousness though - the only thing I can think of which it may be is down to identification purposes, perhaps so the official can determine which leg makes contact with the ball first for example?? Then, however there's the teams that maybe can't afford a full strip and have alsorts of socks in their kitbag. Or maybe two teams wear the same colour socks? Which is quite possible??
It would make more sense to ban ridiculous boot colours. They should be black at all times!
Anyway, it just seems a silly rule really. That and the rolling subs rule have raised a few eyebrows in footballing circles this summer - neither rule really makes any sense to most people. Without wishing to be too offensive to any of the people who make these rules - I personally think there's a few more important issues to be dealt with in local football (and indeed world football) than what colour tape is used to keep socks/shinpads in place.