Alex Harris at OpenMarkets.org writes:

New York is the first city in the country to require restaurants to put the calorie content of foods on the menu. But not all restaurants will be covered by the mandate. No, only restaurants with more than 15 locations in the country will be covered. So Wagamama, the European titan noodle chain with only a couple of US locations, would not be covered if the company opened a New York branch.

More here.