The United Kingdom has undergone significant changes in its relationship with the European Union following Brexit, which formally occurred in 2020. As a part of these changes, new agreements have been made regarding the status of Gibraltar, a British Overseas Territory that shares a border with Spain and has long been a point of contention between the two nations. The latest developments indicate that under a new post-Brexit treaty, Spain will now be responsible for checking the passports of British visitors flying into Gibraltar, aligning it more closely with the Schengen area's border control protocols. Despite these new passport checks, Gibraltar will maintain its British sovereignty and will not become part of the Schengen area. This means that while the border controls with Spain will essentially be eliminated for local movement, UK travellers can still face restrictions based on entry requirements similar to those applied to Schengen countries. Spanish officials have emphasized that the territory will not be incorporated into the Schengen zone but that certain rules will apply, effectively aligning the treatment of British passport holders with those entering the Schengen area, thus requiring that passports must have at least three months of validity remaining for entry. The dual border checks will be implemented at Gibraltar International Airport for British arrivals, with both Gibraltar and Spanish officials conducting these checks. A new facility for these passport control procedures is to be established at the airport. The purpose is to create a more standard procedure akin to that experienced at other European borders, which has raised concerns among some British officials about the extent of Spanish control over Gibraltar’s entry regulations. This framework is set to affect daily travel for the estimated 15,000 people who travel between Spain and Gibraltar. The implementation of these new procedures is expected to improve efficiency at the border while ensuring compliance with EU customs regulations. Processes such as restrictions on the transport of specific goods, like dairy and meat products from the UK into Gibraltar, will remain in place in light of the new customs model intended to simplify checks. The Chief Minister of Gibraltar, Fabian Picardo, has expressed optimism regarding this treaty, envisaging an end to long waits at the border and more opportunities for growth, despite concerns raised by some politicians regarding the transparency of the treaty discussions and its implications for sovereignty. The British government has assured Gibraltar’s people that their interests will remain protected within the broader context of the UK's commitment to Gibraltar’s status.