LTA rules for taxi drivers
According to the Land Transport Authority's website, drivers are not allowed to terminate the hiring of a taxi or ask passengers to leave the taxi, without a valid reason.
They are also not allowed to reject a passenger's request without a valid reason, when the taxi rooftop is displaying the "Taxi" sign. They have to display the appropriate sign, such as "Busy" or "Changing Shift", if they can't pick up passengers.
The LTA implemented the Vocational Licence Points System (VLPS) in June 2003 for the investigation of complaints and to discipline taxi drivers who breach the rules.
Under the VLPS, a penalty of six demerit points and a fine of $300 is given for refusing passengers.