{
  "tool": "ESTA 90-day calculator (Visa Waiver Program)",
  "url": "https://tidyfact.com/en-us/esta-90-day-calculator/",
  "locale": "en-US",
  "description": "Enter the date CBP admitted you under the Visa Waiver Program (after ESTA authorization) and any side trips to Canada, Mexico or adjacent islands. See the tool's day 90, days used, days left, and whether a return falls after day 90.",
  "updated": "2026-10-28",
  "factcheck": {
    "by": "codex:gpt-6-luna",
    "date": "2026-10-28"
  },
  "review": "Facts checked against the listed official sources by an independent AI agent (codex:gpt-6-luna, 2026-10-28). No human reviewed this page.",
  "license": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "attribution": "TidyFact, ESTA 90-day calculator (Visa Waiver Program), https://tidyfact.com/en-us/esta-90-day-calculator/",
  "facts": [
    {
      "label": "Maximum stay per VWP admission",
      "value": 90,
      "unit": "days",
      "display": "90 days",
      "asOf": "2026-10-28",
      "source": {
        "title": "8 U.S.C. 1187 – Visa waiver program for certain visitors (INA 217), current edition",
        "url": "https://uscode.house.gov/us/usc/t8/s1187/",
        "publisher": "Office of the Law Revision Counsel (U.S. House)",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Trip to Canada, Mexico or an adjacent island",
      "formula": "If otherwise admissible, readmission only for the balance of the original admission period; the 90 days do not restart; CBP decides",
      "asOf": "2026-10-28",
      "source": {
        "title": "8 CFR 217.3 – Maintenance of status (eCFR, current)",
        "url": "https://www.ecfr.gov/current/title-8/chapter-I/subchapter-B/part-217/section-217.3",
        "publisher": "Office of the Federal Register (eCFR)",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Days spent in Canada, Mexico or adjacent islands",
      "formula": "Count toward the 90 days (unless you live in the country you visit)",
      "asOf": "2026-10-28",
      "source": {
        "title": "9 FAM 201.1-4(C) – VWP Traveler Eligibility Requirements, paragraphs e (Nature of VWP Travel) and i (ESTA)",
        "url": "https://fam.state.gov/fam/09FAM/09FAM020101.html",
        "publisher": "U.S. Department of State, Foreign Affairs Manual",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "How the 90 days are set",
      "formula": "Each VWP admission is one period of up to 90 days; 90 days in any 180-day period is the Schengen rule",
      "asOf": "2026-10-28",
      "source": {
        "title": "8 U.S.C. 1187 – Visa waiver program for certain visitors (INA 217), current edition",
        "url": "https://uscode.house.gov/us/usc/t8/s1187/",
        "publisher": "Office of the Law Revision Counsel (U.S. House)",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Extension of stay under the VWP",
      "formula": "Not allowed",
      "asOf": "2026-10-28",
      "source": {
        "title": "I-94/I-95 Frequently Asked Questions (Admit Until Date, View Compliance, extension of stay, multiple entries)",
        "url": "https://i94.cbp.dhs.gov/help",
        "publisher": "U.S. Customs and Border Protection",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Satisfactory departure in an emergency (discretionary)",
      "value": 30,
      "unit": "days, at most",
      "display": "30 days, at most",
      "asOf": "2026-10-28",
      "source": {
        "title": "8 CFR 217.3 – Maintenance of status (eCFR, current)",
        "url": "https://www.ecfr.gov/current/title-8/chapter-I/subchapter-B/part-217/section-217.3",
        "publisher": "Office of the Federal Register (eCFR)",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Your last day",
      "formula": "The Admit Until Date on your I-94",
      "asOf": "2026-10-28",
      "source": {
        "title": "I-94/I-95 Frequently Asked Questions (Admit Until Date, View Compliance, extension of stay, multiple entries)",
        "url": "https://i94.cbp.dhs.gov/help",
        "publisher": "U.S. Customs and Border Protection",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Day 90 in this tool (assumption)",
      "formula": "Arrival date + 89 days (arrival day counts as day 1); no official rule found",
      "asOf": "2026-10-28",
      "source": {
        "title": "9 FAM 201.1-4(C) – VWP Traveler Eligibility Requirements, paragraphs e (Nature of VWP Travel) and i (ESTA)",
        "url": "https://fam.state.gov/fam/09FAM/09FAM020101.html",
        "publisher": "U.S. Department of State, Foreign Affairs Manual",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Adjacent islands (law)",
      "formula": "Bermuda, the Bahamas, Barbados, Jamaica, the Dominican Republic, Haiti, Trinidad, Martinique, Saint Pierre, Miquelon, Cuba, the Windward and Leeward Islands, and other British, French and Netherlands territory or possessions in or bordering on the Caribbean Sea",
      "asOf": "2026-10-28",
      "source": {
        "title": "8 U.S.C. 1101(b)(5) – Definition of “adjacent islands” (INA 101), current edition",
        "url": "https://uscode.house.gov/us/usc/t8/s1101/",
        "publisher": "Office of the Law Revision Counsel (U.S. House)",
        "checked": "2026-10-28"
      }
    },
    {
      "label": "Adjacent islands for re-entry on the same I-94 (CBP)",
      "formula": "Adjacent islands excluding Cuba",
      "asOf": "2026-10-28",
      "source": {
        "title": "I-94/I-95 Frequently Asked Questions (Admit Until Date, View Compliance, extension of stay, multiple entries)",
        "url": "https://i94.cbp.dhs.gov/help",
        "publisher": "U.S. Customs and Border Protection",
        "checked": "2026-10-28"
      }
    }
  ],
  "sources": [
    {
      "title": "8 CFR 217.3 – Maintenance of status (eCFR, current)",
      "url": "https://www.ecfr.gov/current/title-8/chapter-I/subchapter-B/part-217/section-217.3",
      "publisher": "Office of the Federal Register (eCFR)",
      "checked": "2026-10-28"
    },
    {
      "title": "8 U.S.C. 1187 – Visa waiver program for certain visitors (INA 217), current edition",
      "url": "https://uscode.house.gov/us/usc/t8/s1187/",
      "publisher": "Office of the Law Revision Counsel (U.S. House)",
      "checked": "2026-10-28"
    },
    {
      "title": "8 U.S.C. 1101(b)(5) – Definition of “adjacent islands” (INA 101), current edition",
      "url": "https://uscode.house.gov/us/usc/t8/s1101/",
      "publisher": "Office of the Law Revision Counsel (U.S. House)",
      "checked": "2026-10-28"
    },
    {
      "title": "I-94/I-95 Frequently Asked Questions (Admit Until Date, View Compliance, extension of stay, multiple entries)",
      "url": "https://i94.cbp.dhs.gov/help",
      "publisher": "U.S. Customs and Border Protection",
      "checked": "2026-10-28"
    },
    {
      "title": "Visa Waiver Program: Requirements for Immigrant and Nonimmigrant Visas",
      "url": "https://www.cbp.gov/travel/international-visitors/visa-waiver-program/requirements-immigrant-and-nonimmigrant-visas",
      "publisher": "U.S. Customs and Border Protection",
      "checked": "2026-10-28"
    },
    {
      "title": "9 FAM 201.1-4(C) – VWP Traveler Eligibility Requirements, paragraphs e (Nature of VWP Travel) and i (ESTA)",
      "url": "https://fam.state.gov/fam/09FAM/09FAM020101.html",
      "publisher": "U.S. Department of State, Foreign Affairs Manual",
      "checked": "2026-10-28"
    },
    {
      "title": "Visa policy (Schengen area): visits of up to 90 days in any 180-day period",
      "url": "https://home-affairs.ec.europa.eu/policies/schengen/visa-policy_en",
      "publisher": "European Commission, Migration and Home Affairs",
      "checked": "2026-10-28"
    },
    {
      "title": "CBP expands ESTA requirements for Visa Waiver Program travelers (from October 1, 2022, ESTA is also required at land ports, as for air and sea)",
      "url": "https://www.cbp.gov/newsroom/national-media-release/cbp-expands-esta-requirements-visa-waiver-program-travelers",
      "publisher": "U.S. Customs and Border Protection",
      "checked": "2026-10-28"
    }
  ]
}