California banned polystyrene. So why is it still on store shelves?

Styrofoam coffee cups, plates, clamshell take-out containers, and other foodservice items made from expanded polystyrene plastic are available on the shelves of restaurants and stores, despite it being effective on January 1st. The final at Redwood City’s Smart was filled with foam plates, bowls and cups for sale Thursday. Want to buy these products online? […]