Someone posted in another thread that they had read on an MCN site that someone had researched this and found that the centre is obliged to use whatever nappies you choose to provide. So there you go, maybe we were all wrong on this!!
Well that makes sense to me... if your child has bad skin reactions to sposies then the centre would have to accommodate cloth or you would be looking elsewhere for child care.
I think I must be one of the lucky ones to have staff so open-minded and positive about cloth nappies!