United States visa regulations and border inspection protocols

Travelers entering the United States must adhere to specific regulations regarding visa usage and border inspections. A B1/B2 visa allows for tourism, medical treatment, and certain business activities such as attending meetings or negotiating contracts, but it does not authorize employment. Engaging in paid work or performing duties typically reserved for U.S. workers while on a visitor visa can violate stay conditions and impact future immigration status.

Furthermore, possessing a valid visa does not guarantee entry into the country. All travelers are subject to inspection by U.S. Customs and Border Protection (CBP) at ports of entry. CBP officers have the authority to examine documents, luggage, and electronic devices to ensure compliance with immigration, customs, and agricultural laws. While inspections of electronic devices like mobile phones and computers are rare—affecting less than 0.01% of international travelers in fiscal year 2025—they are utilized to detect visa fraud, human trafficking, and other security threats.