The series around SGJ
| Series | First open for bidding |
|---|
| SGF | February 2006 |
| SGG | March 2006 |
| SGH | April 2006 |
| SGJ | May 2006 |
| SGK | June 2006 |
| SGL | July 2006 |
| SGM | August 2006 |
Also from 2006: SGE, SGF, SGG, SGH, SGK, SGL, SGM, SGN, SGP, SGQ, SGR.
From LTAโs list of car prefixes on DataMall: from SDQ (December 2001) on, the month a series first opened for bidding; before that, the month it came out. Every series is on the car plate page, and in one CSV.
Questions
What year is an SGJ car plate?
The SGJ series first opened for bidding in May 2006. It was the newest series for 1 month, until SGK in June 2006. So a car with an SGJ plate was registered in May 2006 or later: a number can be bid for after its series opens, or kept from an older car, so the car can be newer than its plate, never older.
How old is a car with an SGJ plate?
No older than 20 years and 6 months (in November 2026), counted from May 2006, when the series first opened for bidding. It can be younger: the plate only says when the number came out.
When does an SGJ carโs COE end?
A COE lasts 10 years from registration, so a car registered in May 2006, when the series first opened for bidding, had its first COE run to about May 2016; one registered later, later still. So an SGJ car still on the road has had its COE renewed for 5 or 10 more years at the Prevailing Quota Premium: see the latest COE prices and PQP, and the PARF and COE rebates for scrapping it.
What comes after SGJ?
SGK, which first opened for bidding in June 2006, then SGL in July 2006. Before SGJ came SGH (April 2006).
What letter does SGJ 1234 end in?
SGJ 1234 A. The last letter is a checksum worked out from the prefix and the number: SGJ 1 L, SGJ 88 L, SGJ 8888 S. Check any SGJ plate.