On Sat, 1 Jan 2005 09:49:11 -0000, "Martin Underwood"
wrote:

"Jack Taylor" wrote in message
...

"Martin Underwood" wrote in message
...

The code that they've used is quite cunning:
for vehicles registered between March and September, the two digits are
always the last two digits of the year; for vehicles registered between
September and March, the two digits are always (year of the September) +
50.

What I still don't understand is what is going to happen in March 2011, if
they continue with the present logic, which is to use '0' to indicate
March
registrations and '5' to indicate September and the other digit to
represent
the last digit of the year! There will still be plenty of vehicles on the
road registered in March 2001 as aa01 abc. Should be interesting!

Conside the following examples:

Mar 2004 04
Sep 2004 54
Mar 2009 09
Sep 2009 59
Mar 2010 10
Sep 2010 60
Mar 2020 20
Sep 2020 70
Mar 2049 49
Sep 2049 99

So for vehicles registered in Mar-Sep, the digits will be the last two of
the year; for vehicles registered in Sep-Mar, the digits will be the last
two of the year in which the September occurred + 50. This will last until
2050, when a new system will be required.



As I understand it, the idea is to use the format XXX 01 PP from March
2051, and XXX 51 PP from September 2051 where XXX are random letters
and PP is a place designator, so the present system could actually
last until 2100

Martin