The merchandise covered by this order is welded carbon and alloy steel structural pipe (other than stainless steel pipe), more than 406.4 mm (16 inches) in nominal outside diameter (large diameter welded structural pipe), regardless of wall thickness, length, surface finish, grade, end finish, or stenciling. Large diameter welded structural pipe may be used for structural purposes, including, but not limited to, piling. Specifically, not included is large diameter welded pipe produced only to specifications of the American Water Works Association (AWWA) for water and sewage pipe. Large diameter welded structural pipe may be produced to American Society for Testing and Materials (ASTM) standards A500, A252, or A53, or other relevant domestic specifications, grades and/or standards. Large diameter welded structural pipe can be produced to comparable foreign specifications, grades and/or standards or to proprietary specifications, grades and/or standards, or can be non-graded material. All structural pipe meeting the physical description set forth above, including any dual- or multiple-certified/stenciled pipe with an ASTM (or comparable) welded structural pipe certification/stencil, is covered by the scope of this order. Subject merchandise also includes large diameter welded structural pipe that has been further processed in a third country, including but not limited to coating, painting, notching, beveling, cutting, punching, welding, or any other processing that would not otherwise remove the merchandise from the scope of the order if performed in the country of manufacture of the in-scope large diameter welded structural pipe. Excluded from the scope of this order is line pipe which is suitable for transporting oil, gas, slurry, steam, or other fluids, liquids, or gases, and is normally produced to American Petroleum Institute (API) specification 5L or equivalent foreign specifications grades and/or standards or to proprietary specifications, grades and/or standards. Also excluded from the scope are any products covered by the existing countervailing duty order on welded line pipe from the Republic of Turkey. See Welded Line Pipe from the Republic of Turkey: Countervailing Duty Order, 80 FR 75054 (December 1, 2015). The large diameter welded structural pipe that is subject to this order is currently classifiable in the Harmonized Tariff Schedule of the United States (HTSUS) under subheadings 7305.31.4000, 7305.31.6090, 7305.39.1000 and 7305.39.5000. Merchandise currently classifiable under subheadings 7305.11.1030, 7305.11.1060, 7305.11.5000, 7305.12.1030, 7305.12.1060, 7305.12.5000, 7305.19.1030, 7305.19.1060, and 7305.19.5000 and that otherwise meets the above scope language is also covered. While the HTSUS subheadings are provided for convenience and customs purposes, the written description of the scope of this order is dispositive.