The update says Mexico City, Guadalajara and Monterrey will share 13 World Cup matches, part of a wider event spanning 16 host cities across Mexico, the United States and Canada.
That scale matters because travel plans will not look the same for every fan:
That split is important. A host nation can feel like one football map during a World Cup, but travel risk still operates state by state.
The report says supporters driving into Mexico are being urged to research routes carefully and check advisory levels for every state on their journey, not just the city where their match is being played.
The practical warning is clear:
The update also says items such as weapons, ammunition, e-cigarettes, vaping liquids and illegal drugs can bring serious legal consequences if taken across the border.
The sharpest line in the advice is around surrounding regions. The report says six Mexican states remain under Level 4 warnings, meaning Americans are advised not to travel there. It also says consular assistance may be limited in some areas, especially outside major urban centres.
That leaves fans with a simple reality: the World Cup in Mexico may be unforgettable, but it appears likely to demand more planning than many supporters first expected. As the opening match gets closer, the next development to watch is whether further travel guidance emerges for fans moving between venues during the group stage.