The merchandise covered by these orders is fine denier polyester staple fiber (fine denier PSF), not carded or combed, measuring less than 3.3 decitex (3 denier) in diameter. The scope covers all fine denier PSF, whether coated or uncoated. The following products are excluded from the scope: (1) PSF equal to or greater than 3.3 decitex (more than 3 denier, inclusive) currently classifiable under Harmonized Tariff Schedule of the United States (HTSUS) subheadings 5503.20.0045 and 5503.20.0065. (2) Low-melt PSF defined as a bi-component polyester fiber having a polyester fiber component that melts at a lower temperature than the other polyester fiber component, which is currently classifiable under HTSUS subheading 5503.20.0015. Fine denier PSF is classifiable under the HTSUS subheading 5503.20.0025. Although the HTSUS subheadings are provided for convenience and customs purposes, the written description of the scope of these orders is dispositive.