One of the most common questions I hear from couples pursuing a marriage-based green card is:

“What is the 90-day rule — and how does USCIS use it?”

This question matters because how you interact with USCIS during the critical early phase of your immigration process can influence interview conduct, officer interpretation of your relationship, and overall case experience.

While the 90-day rule is not special legislation, it is a practical guideline that many officers apply during interviews and case reviews.

Let’s break it down in a way that makes sense regardless of where you are in your case.

What Is the 90-Day Rule?

The “90-day rule” refers to a period of time following a change in circumstance — such as marriage, entry date, or filing of an immigration petition — during which USCIS may view a change with heightened scrutiny if it occurs too soon after the triggering event.

Most often, it comes up when:

• A foreign national marries a U.S. citizen shortly after entering the U.S.
• A marriage date is very close to the date of adjustment-of-status filing
• Travel, work authorization, or change of status happens soon after entry

Importantly, the 90-day rule is not codified law. It’s based on USCIS officer guidance and common adjudicative practice.

Where the 90-Day Rule Comes From

USCIS guidance and internal officer training reflect an effort to assess whether a change of status or marriage occurred genuinely — rather than for the primary purpose of circumventing immigration requirements.

Historically, adjudicators have used a 90-day window as a benchmark when evaluating:

• Intent at the time of entry
• Whether circumstances have shifted promptly
• Whether the marriage appears pre-planned or spontaneous

If an action happens within 90 days — particularly close to the date the applicant first arrives in the U.S. — officers may ask more questions about:

• Timing
• Intent
• Relationship history
• Circumstances of the marriage

This often arises in adjustment-of-status interviews.