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SITCSection 7
U.S. imports of parts of electrical signaling & traffic control equipment (SITC 77883) totaled $15.7M in April 2026, traded with 35 countries.
Importers of Parts of Electrical Signaling & Traffic Control Equipment paid $1.2M in duties in April 2026 — an effective duty rate of 14% on $9.0M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts of Electrical Signaling & Traffic Control Equipment imports of $15.7M in April 2026 ran 17% above the year-to-date monthly average of $13.4M.
Last updated: April 2026 dataReplacement modules, sensor assemblies, control cards, and housings for railway, road, waterway, and port safety systems are captured here when they are identifiable as parts of the signaling and control equipment in the parent heading. Because these parts support safety-critical infrastructure, procurement decisions often prioritize certified OEM sources over lowest-cost alternatives, and documentation of part provenance is important for both customs classification and end-use compliance. Importers should be prepared to demonstrate that parts are specifically designed for signaling or safety control applications rather than general-purpose electrical use.
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OEM part numbers, engineering drawings referencing the parent signaling system, and a manufacturer's statement of principal use are the most effective supporting documents. If the component is a standard commercial item (e.g., a generic relay or connector) also used in non-signaling applications, CBP may challenge classification here, making principal-use evidence especially important.
Yes — parts used in federally funded transportation infrastructure projects (including rail and highway) may be subject to Buy America requirements under the Federal Transit Administration, Federal Railroad Administration, or the Infrastructure Investment and Jobs Act. These requirements are separate from customs classification and duty obligations, and importers supplying government contractors should confirm compliance with the relevant program's domestic content rules.
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Monthly import values over time