Cardboard boxes should be flattened and left next to a blue recycling container in your office, where they will be picked up by the custodians for recycling.
If you have a large number of boxes, please flatten and take to a cardboard collection station nearest your building, normally found in the same area with trash dumpsters. Contact Facilities Management to locate a campus cardboard collection point nearest your building.
All cardboard boxes collected in this program are hauled to a processing facility less than 15 miles from campus. The cardboard is then baled and sent to mills in the US, Mexico, and China where it is pulped and made into new paper for a variety of uses. One of the major mills where most of our cardboard goes is located near downtown Los Angeles. This mill manufactures liner board used to make new cardboard boxes.
Paper recycling source: The Production Process
Source: Industry News: Paper Recovery Up