GOT NON-FAT MILK?

I just started a new half gallon of "non-fat" milk. It tasted good. It definitely had some fat in it. I wonder what the rules are on that sort of thing.

I'm sure there's been a little bit of fat allowed in "non-fat" milk for a long time. When I was a child skimmed milk, as it was called then, had a bluish tinge around the edges, but you don't see that anymore.