FIFA has revised its stadium code of conduct to prohibit reusable water bottles at 2026 World Cup venues, reversing a prior allowance for empty transparent bottles up to one liter. The organization cites safety risks and notes that some host stadiums already enforce similar restrictions, while stating that water pricing will align with local event norms and that heat mitigation measures will be provided. Temperatures are projected to exceed dangerous levels at 14 of 16 venues.