The series around SJJ
| Series | First open for bidding |
|---|
| SJF | March 2008 |
| SJG | May 2008 |
| SJH | June 2008 |
| SJJ | July 2008 |
| SJK | August 2008 |
| SJL | September 2008 |
| SJM | October 2008 |
Also from 2008: SJD, SJE, SJF, SJG, SJH, SJK, SJL, SJM, SJN.
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 SJJ car plate?
The SJJ series first opened for bidding in July 2008. It was the newest series for 1 month, until SJK in August 2008. So a car with an SJJ plate was registered in July 2008 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 SJJ plate?
No older than 18 years and 4 months (in November 2026), counted from July 2008, when the series first opened for bidding. It can be younger: the plate only says when the number came out.
When does an SJJ carโs COE end?
A COE lasts 10 years from registration, so a car registered in July 2008, when the series first opened for bidding, had its first COE run to about July 2018; one registered later, later still. So an SJJ 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 SJJ?
SJK, which first opened for bidding in August 2008, then SJL in September 2008. Before SJJ came SJH (June 2008).
What letter does SJJ 1234 end in?
SJJ 1234 P. The last letter is a checksum worked out from the prefix and the number: SJJ 1 B, SJJ 88 B, SJJ 8888 G. Check any SJJ plate.