Most US sources at least mention that the ban is on bottles holding 1 L or less. An example: http://www.plasticstoday.com/articles/Bottled-water-ban-goes-into-effect-in-Concord,%20MA-0102201301
The Town of Concord, MA has officially banned the sale of single-serving PET water bottles, becoming one of the first towns in the U.S. to pass such a law. The bylaw states, "It shall be unlawful to sell non-sparkling, unflavored drinking water in single-serving polyethylene terephthalate (PET) bottles of 1 liter (34 ounces) or less in the Town of Concord on or after Jan. 1, 2013." Since Fox News can't handle metric, they just describe it as banning individual-serving bottles. The law is pretty silly as residents can go to the next town and buy them.
