Via twitter [ https://twitter.com/fosdem/status/1065923163358408704 ]: As of 2018, the ULB campus Solbosch is within the Brussels Low Emissions Zone (LEZ). Drivers of cars registered abroad are required to register before entering the LEZ, or risk being fined. Registering is free of charge. More information can be found on https://www.lez.brussels/en br, Karlo