Old Corrugated Containers (OCC) refers to used boxes, containers, or other packaging made from unbleached, un-waxed paper with a corrugated (ruffled) inner liner. These materials, also called containerboard, are used for things shipping or moving boxes. If you tear a corrugated box, you’ll notice that the material has three layers, with one especially rigid layer.
While OCC may appear to be similar to cardboard, they are slightly different. Cardboard is a heavy-duty paper stock used for things like cereal boxes or smaller packages. Both are recyclable, but they may require different recycling values on the commodities market.