According to the Singapore Tourism Board Act which came into force Oct. 7, 2014, tourist guides have to be licenced by the Singapore Tourism Board. Licenced tourist guides receive a tourist guide badge. Actiing as a tourist guide without a valid licence is regarded an offence with a penalty of up to S$5,000 for the first offence and and upt to S$10,000 for the second or any subsequent offence. Any use of the services of an unlicensed guide is also regarded an offence with the same fines.The full text of the Singapore Tourism Board Act is available here>>.