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SITCSection 6
U.S. imports of toughened (tempered) safety glass (SITC 66471) totaled $89.0M in April 2026, traded with 54 countries.
Importers of Toughened (Tempered) Safety Glass paid $19.2M in duties in April 2026 — an effective duty rate of 25% on $76.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Toughened (Tempered) Safety Glass imports of $89.0M in April 2026 ran 10% above the year-to-date monthly average of $80.8M.
Last updated: April 2026 dataTempered safety glass undergoes a controlled thermal or chemical hardening process that increases its mechanical strength several times over annealed glass and causes it to fracture into small, relatively blunt fragments rather than sharp shards — a property mandated by safety glazing standards in doors, sidelights, shower enclosures, automotive side and rear windows, and numerous other regulated applications. Because tempering is a terminal process, the glass cannot be cut or drilled after treatment, so importers must specify exact dimensions and any required holes or cutouts before the glass is processed. Demand is broad across construction, automotive, appliance, and solar panel sectors, and the product is subject to active trade-remedy scrutiny in several major supply markets.
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The tempering process creates a balanced stress profile throughout the glass; cutting or drilling after tempering releases this stress and shatters the entire lite. Buyers must provide final dimensions, hole locations, edge profiles, and any notch requirements to the overseas fabricator before tempering, making accurate shop drawings and early order placement critical to project schedules.
Tempered glass for US construction must comply with ANSI Z97.1 (Safety Glazing Materials) and CPSC 16 CFR Part 1201 for consumer products, and must be permanently labeled with the manufacturer's name, the applicable standard, and the safety glazing category. Importers should obtain test reports and confirm labeling compliance before the product ships, as unlabeled safety glazing is typically rejected at the point of installation inspection.
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Monthly import values over time