{
  "id": "us-federal-truck-limits",
  "title": "US federal truck size and weight limits",
  "description": "Federal limits on the Interstate system: gross vehicle weight, axle weights and vehicle width.",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "page": "https://palletdimensions.com/trailer-dimensions/",
  "columns": [
    {
      "key": "value",
      "label": "Limit",
      "numeric": true
    },
    {
      "key": "metric",
      "label": "Metric",
      "numeric": true
    }
  ],
  "rows": [
    {
      "limit": "Gross vehicle weight",
      "value": 80000,
      "unit": "lb",
      "sources": [
        "fhwa-sw-faq-weight",
        "cfr-658-17"
      ],
      "verified": true,
      "note": "Lower where the bridge formula requires it; higher only where grandfathered."
    },
    {
      "limit": "Single axle",
      "value": 20000,
      "unit": "lb",
      "sources": [
        "fhwa-sw-faq-weight",
        "cfr-658-17"
      ],
      "verified": true
    },
    {
      "limit": "Tandem axle",
      "value": 34000,
      "unit": "lb",
      "sources": [
        "fhwa-sw-faq-weight",
        "cfr-658-17"
      ],
      "verified": true
    },
    {
      "limit": "Vehicle width",
      "value": 102,
      "unit": "in",
      "sources": [
        "fhwa-sw-faq-size",
        "cfr-658-15"
      ],
      "verified": true,
      "note": "Hawaii allows 108 in. Neither page sets a federal height limit; height is set by each state."
    }
  ],
  "sources": [
    {
      "id": "fhwa-sw-faq-weight",
      "title": "Size and weight: questions and answers on federal weight limits",
      "publisher": "FHWA Office of Freight Management and Operations",
      "url": "https://ops.fhwa.dot.gov/FREIGHT/sw/faqs/qa.cfm?category=9",
      "kind": "regulator",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "cfr-658-17",
      "title": "23 CFR 658.17 Weight (text of the regulation)",
      "publisher": "Cornell Law School LII",
      "url": "https://www.law.cornell.edu/cfr/text/23/658.17",
      "kind": "reference",
      "official": false,
      "checked": "2026-11-14",
      "note": "A reproduction of the federal regulation on a law school site."
    },
    {
      "id": "fhwa-sw-faq-size",
      "title": "Size and weight: questions and answers on federal size limits",
      "publisher": "FHWA Office of Freight Management and Operations",
      "url": "https://ops.fhwa.dot.gov/FREIGHT/sw/faqs/qa.cfm?category=7",
      "kind": "regulator",
      "official": true,
      "checked": "2026-11-14"
    },
    {
      "id": "cfr-658-15",
      "title": "23 CFR 658.15 Width (text of the regulation)",
      "publisher": "FindLaw",
      "url": "https://codes.findlaw.com/cfr/title-23-highways/cfr-sect-23-658-15/",
      "kind": "reference",
      "official": false,
      "checked": "2026-11-14",
      "note": "A reproduction of the federal regulation on a legal publisher’s site."
    }
  ]
}