Overview: The Inspection Process
When arriving in the United States on an international flight, all travelers must pass through Customs and Border Protection (CBP) inspection. This guide explains what to expect and your rights at each stage.
Primary Inspection
What Happens
Primary inspection is the initial CBP encounter lasting 1-2 minutes:
- Present travel documents (passport, visa if applicable)
- Answer basic questions
- Biometric verification (fingerprints, photo)
- Officer determines admissibility or refers to secondary
Standard Questions
| Question | Purpose |
|---|---|
| Where are you coming from? | Establish travel history |
| What is the purpose of your trip? | Verify visa category |
| How long will you stay? | Immigration compliance |
| Where will you be staying? | Contact information |
| What do you do for work? | Verify consistent purpose |
| Do you have anything to declare? | Customs compliance |
Document Requirements by Status
| Status | Required Documents |
|---|---|
| U.S. Citizen | Valid U.S. passport |
| LPR (Green Card) | Valid passport + Green Card (I-551) |
| Visa Holder | Valid passport + Valid visa |
| VWP/ESTA | Valid passport + Approved ESTA |
Pre-Clearance Facilities
What Is Pre-Clearance?
CBP operates inspection facilities at 15 foreign airports where travelers complete U.S. immigration and customs before boarding.
Current locations include:
- Canada (Toronto, Vancouver, Montreal, Calgary, Edmonton, Ottawa, Halifax, Winnipeg)
- Ireland (Dublin, Shannon)
- Bahamas (Nassau)
- Bermuda
- Aruba
- Abu Dhabi (UAE)
Pre-Clearance Considerations
| Advantage | Consideration |
|---|---|
| Arrive as domestic passenger | Full CBP authority abroad |
| Skip immigration lines on arrival | If denied, you're still abroad |
| Faster connections in U.S. | Can withdraw application |
Right to Withdraw
At pre-clearance, if CBP indicates you will be denied entry, you have the practical option to withdraw your application and remain in the foreign country. This avoids formal deportation and reentry bars.
Important: This option disappears once you land on U.S. soil.
Secondary Inspection
What Triggers Secondary?
Common reasons for referral to secondary:
| Trigger | Notes |
|---|---|
| Database hit | Watchlist, prior violations |
| Random selection | Compliance audits |
| Admissibility question | Visa validity, purpose of travel |
| Document issue | Expired, damaged, or missing |
| Officer concern | Inconsistent answers, behavior |
| Prior immigration violation | Overstay, prior removal |
What Happens in Secondary
- Escorted to waiting area — may wait extended periods
- Additional questioning — more detailed, recorded
- Database verification — extensive background checks
- Baggage search — thorough physical inspection
- Device search — possible (see device search guide)
- Decision — admission, withdrawal, or removal
How Long Can You Be Held?
There is no strict legal time limit, but:
| Scenario | Typical Duration |
|---|---|
| Basic verification | 30 minutes - 2 hours |
| Complex admissibility | 2-8 hours |
| Suspected fraud | 8-24 hours |
| Weekend/holiday | May extend significantly |
Your Rights in Secondary
What You Have
| Right | Notes |
|---|---|
| Remain silent (5th Amendment) | Cannot be compelled to answer |
| Request consular notification | Vienna Convention (foreign nationals) |
| Request medical attention | If needed |
| Know why detained | Can ask the reason |
What You Do NOT Have
| No Right To | Notes |
|---|---|
| Attorney during inspection | No 6th Amendment right applies |
| Phone call | At CBP discretion |
| Record the encounter | Prohibited in CBP areas |
| Leave during inspection | Considered abandonment |
Practical Tips
- Stay calm — hostility escalates situations
- Be consistent — inconsistencies raise flags
- Answer truthfully — lying is a federal crime (18 U.S.C. § 1001)
- You can remain silent — but understand consequences
- Do not sign anything you don't understand
- Ask for an interpreter if needed
Secondary Inspection Outcomes
Possible Results
| Outcome | What It Means |
|---|---|
| Admission | Allowed entry; inspection complete |
| Deferred Inspection | Paroled in; must report to local CBP office |
| Withdrawal of Application (I-275) | Voluntary return; no formal removal order |
| Expedited Removal | Formal deportation; 5-year bar |
| Parole | Temporary entry for humanitarian reasons |
| Detention | Held pending further proceedings |
Deferred Inspection
Used when you appear admissible but lack a specific document:
- You are paroled into the U.S.
- You must appear at a local CBP office with the missing documentation
- Failure to appear results in removal proceedings
Withdrawal vs. Expedited Removal
| Withdrawal (I-275) | Expedited Removal |
|---|---|
| Voluntary departure | Formal deportation order |
| No formal record of removal | Creates immigration record |
| No automatic reentry bar | 5-year reentry bar |
| You pay for return flight | Government removal |
| May apply for visa again | Must apply for waiver |
Consider withdrawal if: You have a legitimate basis to return later and want to avoid formal deportation record.
Rights by Immigration Status
U.S. Citizens
| Right | Status |
|---|---|
| Enter the United States | Absolute right — cannot be denied |
| Refuse to answer questions | Yes, but may cause delay |
| Refuse device search | Yes, but device may be seized |
Important: Even citizens face consequences:
- Extended detention in secondary
- Device seizure
- Possible criminal referral for contraband
Lawful Permanent Residents (LPRs)
| Right | Status |
|---|---|
| Presumption of admission | Yes, unless exceptions apply |
| Refuse to sign I-407 | Absolute right |
| Maintain status | Only a judge can revoke |
Vulnerabilities:
- Trips over 180 days trigger scrutiny
- Trips over 365 days presume abandonment
- Criminal history may trigger inadmissibility
Critical: If CBP pressures you to sign Form I-407 (abandonment of LPR status), you have the right to refuse. Only an immigration judge can strip your status involuntarily.
Visa Holders
| Right | Consequence of Refusal |
|---|---|
| Refuse to answer questions | Denial of entry |
| Refuse device search | Visa cancellation, removal |
| Withdraw application | Return home, apply again |
Key vulnerability: You bear the burden of proof to establish admissibility. Refusal to cooperate = denial.
Visa Waiver Program (ESTA)
| Consideration | Impact |
|---|---|
| No right to hearing | You waived it by using VWP |
| Immediate removal | If deemed inadmissible |
| No appeal | Decision is final |
| Withdrawal option | Can still withdraw before formal removal |
Travel Considerations
Transit Without Visa (TWOV) — Eliminated 2026
Major change: The TWOV program has been eliminated as of March 2026.
Impact: Passengers transiting through U.S. airports to connecting international destinations now need:
- Valid U.S. visa, OR
- Approved ESTA
Risk scenario: If your international flight is diverted to a U.S. airport (weather, medical emergency), you may be detained if you lack visa/ESTA authorization.
Pre-Travel Preparation
| Action | Purpose |
|---|---|
| Verify visa validity | Avoid denial at entry |
| Check ESTA status | Must be approved before travel |
| Carry supporting documents | Employment letter, itinerary, hotel reservations |
| Know your rights | Preparation reduces stress |
| Emergency contacts | Written, not just on phone |
If You Are Denied Entry
Immediate Steps
- Ask for the specific reason in writing
- Request all documents issued to you
- Do not sign anything without understanding it
- Ask about withdrawal if formal removal is threatened
- Request consular notification (foreign nationals)
After Denial
| Action | Notes |
|---|---|
| Consult immigration attorney | Before any future travel |
| File DHS TRIP complaint | If wrongful denial |
| Apply for waiver | If reentry bar applies |
| Document everything | Notes, receipts, officer names |
Filing Complaints
DHS TRIP (Traveler Redress Inquiry Program)
For issues including:
- Repeated secondary referrals
- Watchlist misidentification
- Wrongful device seizure
- Other CBP misconduct
Website: dhs.gov/trip
Other Complaint Options
| Agency | Purpose |
|---|---|
| DHS CRCL | Civil rights violations |
| DHS OIG | Officer misconduct |
| Congressional office | Constituent services |