PIZZA BOXES ARE CONSIDERED DIRTY AND SHOULD BE BROKEN DOWN AND PUT IN REGULAR GARBAGE BAGS.
Corrugated Cardboard and Boxboard Guidelines
Corrugated cardboard consists of two pieces of heavy paper (usually brown) with a wavy layer in between. Moving and mailing boxes are usually corrugated cardboard.
Corrugated cardboard and boxboard will be picked up at the curb. Cardboard should be flattened and folded.
Boxboard, a heavy paper used to make food packaging and gift boxes, appears to contain only one paper layer.
Examples of boxboard include boxes used to hold food mixes, cereals, tissue, toothpaste, cosmetics, medication, shoes and gifts.
Recycled boxboard is generally used to make new boxboard, puzzles and such items as egg cartons.