The New York Daily News reports that the new system of grading city restaurants has been such a success Mayor Bloomberg said Monday that he wants to expand it to the city’s roving fleet of food carts.

"Personally, I would love to see before I buy from a cart a sign up there telling whether or not the guy washed his hands before he reaches in and pulls out the hot dog, Bloomberg said at an event trumpeting the benefits of letter grades for city eateries.

"I love to eat from the street vendors too," he said.

However, Health Commissioner Dr. Thomas Farley said, "It is more complicated because (the carts) are not always out there," Farley said.

Bloomberg crowed that since the city instituted the letter-grading system a year ago, Big Apple restaurant have been spared $3 million in fines by earning A-grades.

While overall fines shot up from $32 million to $42 million, Bloomberg said the bite would have been worse if restaurants making fast improvements hadn’t had their fines waived.