# Green Card Trips

> Green Card Trips helps U.S. lawful permanent residents (green card holders) understand how time spent outside the United States affects continuous residence, physical presence, and naturalization eligibility. The site publishes plain-language guides on green card travel rules, and the companion iOS and Android app lets users log their trips and calculates citizenship eligibility automatically. Educational information only, not legal advice.

## Core concepts

- [Continuous Residence vs. Physical Presence](https://greencardtrips.com/blog/continuous-residence-vs-physical-presence/): How the two naturalization requirements differ, with examples and calculations.
- [Complete Guide to Green Card Travel, Continuous Residence & Physical Presence](https://greencardtrips.com/blog/green-card-travel-guide/): Overview of green card travel rules and which documents preserve naturalization eligibility.
- [How Long Can You Travel Outside the U.S. with a Green Card?](https://greencardtrips.com/blog/how-long-can-you-travel-outside-us-green-card/): The under-6-month, 6-to-12-month, and 12-month-plus travel thresholds and their effect on citizenship.

## Travel documents

- [I-131 Reentry Permit Complete Guide](https://greencardtrips.com/blog/i-131-reentry-permit-guide/): How a reentry permit helps protect status during trips of 6 months or more, with costs and processing times.
- [I-131, SB-1, and N-470: Which Travel Document Do You Need?](https://greencardtrips.com/blog/i131-sb1-n470-comparison/): Comparison of the three documents that protect status and citizenship during extended travel.
- [Form N-470: Preserve Continuous Residence While Working Abroad](https://greencardtrips.com/blog/form-n-470-guide/): Who qualifies, application steps, and why to file alongside Form I-131.
- [SB-1 Returning Resident Visa: Complete Application Guide](https://greencardtrips.com/blog/sb1-returning-resident-visa-guide/): The DS-117 process for residents who stayed abroad more than one year.

## Protecting status and recovering

- [Green Card Abandonment: Protect Your Permanent Resident Status While Traveling](https://greencardtrips.com/blog/green-card-abandonment/): Abandonment triggers and how to protect permanent residence during extended travel.
- [Continuous Residence vs. Green Card Status: The 4-Year-1-Day Recovery Rule](https://greencardtrips.com/blog/continuous-residence-vs-green-card-status/): How to restart the citizenship clock after a continuous-residence break.
- [How to Prove Continuous Residence After a 6-12 Month Absence](https://greencardtrips.com/blog/prove-continuous-residence-6-month-absence/): Evidence checklist and N-400 interview preparation to rebut the presumption of a break.
- [Can You Travel with a Conditional Green Card?](https://greencardtrips.com/blog/conditional-green-card-travel-rules/): Travel rules and documents while Form I-751 is pending.

## Citizenship timing and renewal

- [When Can You Apply for U.S. Citizenship? N-400 Eligibility Timeline](https://greencardtrips.com/blog/when-can-you-apply-for-citizenship/): The 3-year and 5-year paths and the 90-day early-filing rule.
- [Green Card Renewal While Traveling](https://greencardtrips.com/blog/green-card-renewal-while-traveling/): What happens if your card expires abroad, re-entry, and Form I-90.

## About

- [Green Card Trips home](https://greencardtrips.com/): The app for tracking U.S. physical presence and citizenship eligibility. One-time purchase, available on iOS and Android. Also available in Spanish, Tagalog, Vietnamese, and Simplified Chinese.