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SITCSection 7
U.S. imports of apparatus for carrier-current or digital line systems (nes) (SITC 76418) totaled $296.4M in April 2026, traded with 58 countries.
Importers of Apparatus for Carrier-Current or Digital Line Systems (NES) paid $31.3M in duties in April 2026 — an effective duty rate of 13% on $236.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Apparatus for Carrier-Current or Digital Line Systems (NES) imports of $296.4M in April 2026 ran 15% above the year-to-date monthly average of $257.6M.
Last updated: April 2026 dataResidual-category apparatus for carrier-current and digital line systems — equipment not elsewhere specified under the broader telecommunications heading — plays a critical role in wireline broadband infrastructure, DSL aggregation, and legacy telephony networks. Because the SITC code captures a heterogeneous mix of line-interface units, multiplexers, and signal-conditioning gear, customs classification often requires a detailed technical description to distinguish this residual group from more specific HTS headings covering modems or switching apparatus. Importers should verify whether specific line-card or chassis assemblies fall here or under a more precisely defined subheading, as misclassification can affect Section 301 exposure.
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The 'not elsewhere specified' qualifier means this category captures line-system apparatus that does not fit a more specific SITC or HTS subheading — typically specialized interface units, line drivers, or hybrid assemblies. Importers should obtain a binding ruling or consult a licensed customs broker when the equipment could plausibly fall under a dedicated modem, multiplexer, or switching heading.
Depending on the specific HTS classification and country of origin, certain telecommunications apparatus may be subject to Section 301 tariffs. Because this SITC group maps to multiple HTS subheadings, the applicable measure must be determined line by line based on the precise product description and origin.
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Monthly import values over time