A term used to describe material that is being reused/recycled before it ever goes to market (e.g. paper scraps off of a paper mill floor going back into the next batch of paper). Waste material generated during the manufacturing process.

Materials that have been recovered during the manufacturing process.

Another term for manufacturing waste. For example, an envelope manufacturer might recycle the clippings left over when envelopes are cut from paper. These clippings could be made into other paper products instead of being thrown away.