CBP Border Device Search Directives
Yes. When you fly into or out of the United States, U.S. Customs and Border Protection (CBP) can look through your phone, laptop, or tablet without a warrant, and in many cases without any suspicion at all. It can also hold onto your device for days, and keep it for good if officers find evidence of a crime.
Those powers are spelled out in CBP Directive No. 3340-049B, “Border Search of Electronic Devices.” It took effect January 1, 2026, and replaces the 2018 version, Directive 3340-049A. Anyone who travels internationally, including U.S. citizens returning home to Tampa International Airport, should know what it says.
Below, we walk through what the directive allows, what limits it puts on officers, and what you can do to protect yourself.
Where This Applies (and Where It Doesn’t)
The directive covers border searches: inbound and outbound travel at the physical border, its “functional equivalent,” and the “extended border” (Section 2.3). For most people, that means the customs area when you land on an international flight, or the gate before you depart for another country. Outbound travelers are covered too. Leaving the country does not take you out of CBP’s reach.
This is not TSA screening. A TSA officer at the security checkpoint for a domestic flight from Tampa to Chicago is not conducting a border search under this directive.
The directive defines “electronic device” broadly (Section 3.2). It includes phones, computers, tablets, flash drives, SIM cards, cameras, smart watches, GPS units, drones, and even vehicle infotainment systems.
Two Kinds of Searches: Basic and Advanced
The directive splits device searches into two categories, and the rules differ sharply.
| Basic Search | Advanced Search | |
|---|---|---|
| What it is | An officer scrolls through your device by hand: photos, messages, apps, files | Officers connect equipment, wired or wireless, to copy or analyze the device’s contents |
| Suspicion required | None. CBP may search “with or without suspicion” (Section 5.1.3) | Reasonable suspicion of a violation of laws CBP enforces, or a “national security concern” (Section 5.1.4) |
| Approval required | None beyond the officer | A supervisor at Grade 14 or higher; a national-security-only search needs senior sign-off |
Two details matter here. First, a basic search can still be thorough. An officer reading your texts and emails for an hour is doing a “basic” search. Second, using outside equipment just to unlock a phone, bypass a password, get past encryption, or translate content does not count as an advanced search (Section 3.4).
The directive does set some limits. Officers may only search what is stored on the device itself, not data kept solely in the cloud (Section 5.1.2). They are supposed to ask you to put the device in airplane mode, or disable connectivity themselves. They may not rely on “search incident to arrest” as a legal basis to search an arrestee’s device (Section 2.4).
Passcodes, Detention, and Seizure
The directive says travelers “are obligated to present electronic devices and the information contained therein in a condition that allows inspection” (Section 5.3.1). Officers may ask you to unlock your phone or give them your passcode. CBP is supposed to write passcodes down only temporarily, avoid entering them into CBP systems, and destroy them when the search ends (Section 5.3.2).
If you refuse, the directive does not say you will be arrested for declining. It says CBP may detain the device instead (Sections 5.3.3 and 5.4.1). A U.S. citizen cannot be denied entry to the country, but you may leave the airport without your phone. For visa holders and other non-citizens, refusing can affect admissibility, so the stakes are higher.
Once you leave the airport, holding your device requires supervisory approval. Detention “ordinarily should not exceed five (5) calendar days,” but managers can extend it. Past 15 days, they can renew it in seven-day increments with no hard cap (Section 5.4.1.1).
If CBP keeps your device, the officer must give you a completed Form 6051D, a custody receipt that tracks every transfer, including to Homeland Security Investigations (Section 5.4.1.2). Keep it.
If officers find what they believe is probable cause of contraband or evidence of a crime CBP enforces, they can seize the device outright (Section 5.7.1). At that point you are likely looking at a criminal investigation, and you should talk to a lawyer before saying anything further.
What CBP Can Keep and Who It Can Share With
CBP can hold copies of your data for up to 21 calendar days after a search ends while it decides whether to keep them (Sections 3.7 and 5.6.4). It can keep them longer if it finds probable cause of a crime, if the data relates to immigration, customs, or other enforcement matters, or if lawyers decide it must be preserved for litigation (Sections 5.6.1 to 5.6.3). Notably, the second category does not require probable cause.
CBP can share retained information with federal, state, local, tribal, territorial, and foreign law enforcement agencies (Section 5.8.1). In plain terms, something found on your phone at the airport can end up in the hands of a local sheriff’s office or a foreign government.
What You Can Do
- Travel light. The simplest protection is not carrying data you don’t need. Consider a travel phone or laptop, or log out of apps and remove sensitive files before you fly.
- Stay calm and polite. Arguing with a CBP officer rarely helps and can escalate the encounter. You can decline to answer questions or give a passcode, but understand the device may be held.
- Ask why. Before a search, CBP is supposed to tell you the purpose and authority for it and how to seek redress, often with a printed tear sheet (Section 5.1.7). Ask for it.
- Ask to be present. CBP directs that searches “should be conducted in the presence of the individual,” though officers may exclude you for operational reasons (Section 5.1.6).
- Assert privilege clearly. If you are a lawyer, or you have privileged communications with one, say so and identify the material.
- Write it all down. Note the officers’ names and badge numbers, the time, what was searched, and whether equipment was connected. Keep your Form 6051D.
- Don’t lie. Making false statements to a federal officer is a crime. Silence is safer than a false answer.
- Call a lawyer if your device is held past a few days, seized, or if officers question you about criminal activity.
Talk to a Tampa Civil Rights and Criminal Defense Attorney
If CBP searched, held, or seized your phone or laptop, or if evidence from a border search is being used against you, the Law Office of Michael P. Maddux, P.A. can help. We handle both criminal defense and civil rights cases in state and federal court, and we can review whether officers followed the law and their own policy. Contact our office to schedule a consultation.