# AI tells a US/UK/CA citizen that re-entering the US from Canada or Mexico by land resets the 90-day ESTA clock

- **ID:** `visa/us-canada-mexico-land-border-esta-rule`
- **Domain:** visa
- **Category:** immigration_risk
- **Error Code:** `US_VWP_LAND_RESET`
- **Verification:** ai_generated
- **Fix Rate:** 93%

## Root Cause

Under the US Visa Waiver Program (VWP), a traveler who exits the US to Canada or Mexico and re-enters by land does NOT get a new 90-day stay. Instead, they are admitted for the remainder of their original 90-day period (or up to 90 days if they have not yet used any time). This is because VWP rules treat contiguous territory travel differently from overseas travel. Only a flight from outside the US (e.g., from Europe) resets the clock. Many travelers mistakenly believe a quick land border crossing resets their stay.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| VWP 90/180 rule (no formal code) | active | — | — |
| CBP ESTA regulations (2025) | active | — | — |

## Workarounds

1. **To reset your ESTA 90-day stay, depart the US by air to a non-contiguous country (e.g., fly to the UK, Japan, or Brazil) and re-enter the US by air. A same-day return flight is allowed but may raise questions; a stay of 1-2 days abroad is safer.** (95% success)
   ```
   To reset your ESTA 90-day stay, depart the US by air to a non-contiguous country (e.g., fly to the UK, Japan, or Brazil) and re-enter the US by air. A same-day return flight is allowed but may raise questions; a stay of 1-2 days abroad is safer.
   ```
2. **If you are near the end of your 90-day stay and want to remain in North America, fly to a Caribbean island (e.g., Bahamas, Jamaica) that is not contiguous to the US, spend at least 1 day there, then fly back to the US. This resets the clock.** (90% success)
   ```
   If you are near the end of your 90-day stay and want to remain in North America, fly to a Caribbean island (e.g., Bahamas, Jamaica) that is not contiguous to the US, spend at least 1 day there, then fly back to the US. This resets the clock.
   ```
3. **Monitor your exact entry and exit dates using your I-94 record at https://i94.cbp.dhs.gov/. Do not rely on passport stamps alone.** (98% success)
   ```
   Monitor your exact entry and exit dates using your I-94 record at https://i94.cbp.dhs.gov/. Do not rely on passport stamps alone.
   ```

## Dead Ends

- **Cross the US-Mexico border at San Ysidro and re-enter immediately to get a new 90-day stay** — CBP officers will admit you for the remainder of your original 90-day period, not a new one. You must depart the US by air to a non-contiguous country to reset. (95% fail)
- **Spend 24 hours in Canada before re-entering to qualify for a new stay** — Time spent in Canada or Mexico does not reset the VWP clock. Only departure to a country outside the VWP region (e.g., Europe, Asia) resets it. (90% fail)
- **Use a US B-1/B-2 visa instead, assuming it has the same 90-day limit** — B-1/B-2 visas typically allow up to 6 months per entry, but the same contiguous territory rule applies: re-entry from Canada/Mexico does not reset the clock unless you have been outside the US for a significant period (usually 30+ days). (80% fail)