Can anyone tell me the green laning rules in France?

I fancy getting a little motorbike to put put around on and perhaps even explore a little off the paved road.

So far my French googling has not turned up much in terms of dos and don'ts, so I thought I'd ask you lot. I'm in the 66 region and have a trials club and a motocross club close by, but I'm not serious enough about either of those to pay to join.

Thanks.

That sounds great Rushjob. Do you have a link?