You absolutely are not allowed to smoke or vape on the bus or on any public transport for that matter. Yes its a criminal offence to smoke on a bus public transport. No first warning, youre off How to Control Vape Use on School Buses We're making it clear vaping and smoking is not permitted on our buses, trams and trains. Please remember that e cigarettes and vapes are not permitted on board please respect your fellow passengers and refrain from using these until you have disembarked the bus.