What classifies as a public place that I would need to muzzle my restricted breed dog in?

I’ve grown up in a town where muzzling restricted breed dogs wasn’t enforced, but I have recently moved to a town where it is enforced, so I don’t know what does and doesn’t classify as a public place in which I would need to muzzle my dog in. She doesn’t have any behavioural issues, and is quite friendly with both people and animals, but I don’t want to risk getting a €100 fine. Can anyone help me please? For context and laws around restricted breeds, I live in Ireland.