Back to the licenseplates index Singapore Diplomatic Corps plates 48=Brazil Normal plates Prefix letters indicate the vehicle class, followed by up to four numerals and one letter which is a check digit. S, SA-SF, SK-SY, SBA-SBZ, SCA-SCZ, SDA-SDZ, SFA-SFZ etc. - private cars Normal plates E, EA-EZ- private cars Commercial plates under 3 tons G, GA-GZ- commercial cars under 3 tons Private hire plates PB, PH, PZ- excursion vans Commercial plates over 3 tons and 2 axles Y, YA-YZ Reduced taxes plates (white on red) Restricted use plates (white on green\red) RU City Shuttle Service plates CSS Singapore Bus Service plates SBS Trans Island Bus Service plates TIB Former plates 1963-1984 Bus and Taxi plates SH Singapore Transport Co. plates STC