buses and coaches european union public transport public money taxes road transport polluter pays earmarking user pays vignettes tolls transport operator cabotage international services access to market free movement inmigration law migration labour market economic migration transportes unión europea libro blanco transporte metropolitano comision europea co2 buses & coaches environment regulation safety ten-t eu funding efsi horizon 2020 connecting europe facility structural funds terminals juncker plan public contract services concessions transport public service obligations public procurement school transport spain
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