As of January 1st 2015, Seattle and Metro Vancouver have both banned the disposal of food waste in order to increase diversion rates and save landfill space.
Enforcement is one part of the story:

“Recology CleanScapes driver Rodney Watkins issues a red tag — the scarlet letter of food waste in Seattle.” -Amy Radil/KUOW
Education and innovation are equally important strategies, and Metro Vancouver provides many options for different types of waste generators: