4707 - Recovered (waste and scrap) paper and paperboard:

This category, HTS 4707, encompasses recovered paper and paperboard that has been designated as waste or scrap. These materials are typically post-consumer or post-industrial byproducts, intended for reprocessing into new paper and paperboard products. The key characteristic is that the material has already served its initial purpose and is now being collected for recycling.

Distinguishing HTS 4707 from its siblings within the broader HTS structure is crucial. While other chapters might cover raw materials or finished paper products, this chapter specifically addresses the *recovered* forms of paper and paperboard. For example, it is distinct from Chapter 48, which covers paper and paperboard and articles of paper pulp, paper or paperboard, as those are typically virgin or processed products intended for direct use, not reprocessing.

Within HTS 4707, further subdivisions are based on the source and processing of the recovered paper. The subcategories detail distinctions based on whether the material is primarily derived from unbleached kraft paper, bleached chemical pulp (and whether it's colored), or mechanical pulp. The "Other" category serves as a catch-all for unsorted waste and scrap, highlighting the importance of precise sorting and identification for accurate classification.