Which of the following is NOT a characteristic of the Electronic System for Travel Authorization (ESTA)?

The Electronic System for Travel Authorization (ESTA) is designed to enhance security and facilitate travel for visitors from countries participating in the Visa Waiver Program. One of its key characteristics is that it is valid for multiple entries into the U.S. for a duration of two years or until the traveler's passport expires, whichever comes first. This means travelers can enter the U.S. multiple times without needing to apply for a new ESTA each time, provided they maintain their eligibility.

Additionally, ESTA assesses travelers' eligibility for the Visa Waiver Program, and its electronic processing is automated to streamline the application and approval process. By making these functions effective and efficient, ESTA improves the overall experience for travelers and contributes to national security measures.

On the other hand, the assertion that ESTA is limited to one-time use is incorrect, as it explicitly allows multiple entries, which distinguishes it from traditional visas that may have different entry conditions.