NAICS 31 encompasses dozens of distinct industries — from meat packing to petroleum refining to textile weaving — each governed by different HTS chapters, duty rates, and regulatory agencies. Operational compliance decisions require drilling down to the specific four-digit NAICS sub-sector and, ultimately, the 10-digit HTS tariff line, where duty rates, trade-remedy orders, and admissibility rules are actually defined.
Given the sector's breadth, multiple agencies are relevant: FDA oversees food, drug, and cosmetic imports; USDA FSIS inspects meat and poultry products; EPA regulates pesticides and certain chemical imports; and USDA APHIS handles plant-derived materials. The applicable agency depends entirely on the specific manufactured product being imported.
Sector 31 · 62 products
Sector 31 · $27.4B of $336.2B
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ImportsExports
Imports
$27.4BYoY · free account
Exports
$9.7BYoY · free account
Low of 8 reported months · imports
Low · free accountThrough August 2026 · imports 8 of 12 months reported, exports 8 of 12 months reported. Source: U.S. Census Bureau.
Imports · August 2026
origin
China pays 29.4% duty; Mexico 0.4%.
customs district
Census does not publish district detail for this classification system.
destination
entry
Census does not publish port detail for this classification system.