Tariff Classification
International customs nomenclature categorizes polymeric waste and scrap materials under specific harmonized codes to regulate global trade and recycling flows. In the sourcing of recycled textile raw materials, hs 3915 designates the tariff classification for waste, parings, and scrap of plastics. This category includes post-industrial yarn waste from synthetic fiber extrusion and clean bottle flakes destined for mechanical recycling into polyester staple fiber.
It represents the primary commercial boundary separating trade in reusable raw materials from general municipal solid waste.
Polymer Sourcing
Polymer sourcing starts with the procurement of materials registered under this code. When synthetic spinning mills source feedstock for recycled yarns, import-export documentation requires the hs 3915 classification to verify the origin and composition of the polymer scrap. This process allows the mill to claim duty drawdowns or sustainability tax credits.
Customs Verification
Customs verification requires the physical scrap to be dry, unblended, and free from hazardous contaminants like heavy metals or medical waste. Mill laboratory tests on arriving shipments of hs 3915 material measure the intrinsic viscosity of the plastic flakes and the level of polymer contamination before processing. If the material contains more than the maximum permitted percentage of polyvinyl chloride or moisture, the melt extrusion line will experience filter blockages and yarn breakage.
This inspection is carried out on every container before the scrap is cleared for mechanical shredding and pelletizing.
Subheading Division
Subheading division choices within this category distinguish between polyethylene, polystyrene, polyvinyl chloride, and other plastics. For the textile industry, the subheadings for polyethylene terephthalate and other polyamides are the most heavily traded because they provide the chemical precursor for synthetic apparel fibers.
