# AI 告诉美国免签计划（ESTA）的旅行者，他们可以通过申请 B-2 签证延期或提交 I-539 表格来延长 90 天的停留时间

- **ID:** `visa/us-esta-extension-misconception`
- **领域:** visa
- **类别:** immigration_risk
- **错误码:** `ESTA_EXTENSION_ERR`
- **验证级别:** ai_generated
- **修复率:** 85%

## 根因

通过 ESTA 以美国免签计划 (VWP) 入境的人员严格限制停留最多 90 天，且在任何情况下均不得延期或更改身份，包括提交 I-539 表格（延长/更改非移民身份申请）。即使逾期一天也会导致 5 年禁止使用 VWP 并可能被拒绝入境。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| us_immigration_regs | active | — | — |
| esta_policy | active | — | — |

## 解决方案

1. ```
   If the traveler needs a longer stay, they must apply for a B-2 visitor visa at a US embassy/consulate in their home country BEFORE traveling to the US. B-2 visas allow up to 6 months per stay and can be extended via I-539.
   ```
2. ```
   If the traveler is already in the US and has a compelling reason to stay longer (e.g., medical emergency), they can request a 'satisfactory departure' from CBP at the port of exit, but this does not extend their stay—it only avoids a ban for overstay. No guarantee.
   ```
3. ```
   For business travelers, consider using the B-1 visa instead of ESTA if the trip may exceed 90 days or involve activities not allowed under VWP (e.g., installing equipment, training). Apply in advance.
   ```

## 无效尝试

- **** — VWP entrants are ineligible for extension or change of status; USCIS will deny the I-539 and the traveler will accrue unlawful presence (95% 失败率)
- **** — CBP may deny re-entry if they suspect the traveler is trying to circumvent the 90-day limit; also, ESTA requires a 'meaningful departure' to a distant country (90% 失败率)
- **** — VWP entrants cannot adjust status to any nonimmigrant visa category while in the US; they must apply at a consulate abroad (85% 失败率)