On January 8th, 2025, the UK implemented a new Electronic Travel Authorization (ETA) system similar to the United States ESTA system. If you are traveling to the UK without a visa, you must apply for an ETA, pay a small fee, and be preapproved prior to entering the UK.
You can apply on the UK government website or directly online. Please be aware there is a fee of around $12.50 to apply. A decision on your application will be made normally within three days and the validity lasts for two years and multiple entries.
To view more information about this system please see the link below. If you have any questions, please reach out to the Export Controls Office by clicking here (exportco@ucmail.uc.edu).