It depends. I am not that familiar with US, but in most of Europe you do have layered system. Basic table wine rules are quite relaxed, but then you have higher

It depends. I am not that familiar with US, but in most of Europe you do have layered system. Basic table wine rules are quite relaxed, but then you have higher levels with more or less strict rules for farming practices, yield and vinification practices. Those practices are then checked by governing body or goverment.