Gee, this looks familiar....
That's the government under Bloomberg tagging restaurants telling the public to do or not do business with them under the guise of "cleanliness" which is code for "paying off the city". "A" rating means Bloomberg says the public can eat here. "C" rating, usually given to minority restaurant owners, means "Bloomberg says do not eat here".
Also, read this...
They worked, for a time. The difference between an "A" rating of "90+" and a "B" rating of "89.5-" was immense, basically, it was the difference between "OK to eat here" and "You're putting your health at risk. And don't even think of looking in the bathrooms!".
Then, magically a couple of years later, ALL of the restaurants started receiving "A" grades. Many places were at "98" out of "100" or better. And I've seen a double handful at "100.5" and even "104". Which must be pretty hard to get on a scale of 100....especially at a mediocre fast food joint like Taco Bell.
Liberals would say: "See!! See!! Our program WORKS! All of these filthy restaurants have cleaned up their act!"
Pragmatic Conservatives (like myself) say "Really? Every single restaurant is perfectly acceptable to eat in? Who's getting paid off??"