Sodium (noun). a common metallic element of the alkali group, in nature always occuring combined, as in common salt, in albite, etc. It is isolated as a soft, waxy, white, unstable metal, so readily oxidized that it combines violently with water, and to be preserved must be kept under petroleum or some similar liquid.
Vehicles exempt from paying the tax: Old vehicles constructed before 1 January 1973 (historic vehicles) All vehicles except buses and lorries used commercially, that were constructed before 1 January 1973 may tax in the 'historic vehicle' tax class.ubmit. Â· just now. Report Abuse. A car has to be registered before 1973 before it is tax exempt...we had a VW camper and were looking forward to being exempt at 25 years old, but when I checked with ministry of transport I was told it had to be reg before 1973!!!!
For cars registered after March 1st, 2001, the DVLA car tax rate (Vehicle Excise Duty) is based on the car's CO 2 emissions and the type of fuel it uses. For cars registered before March 1st, 2001, car tax is based on engine size only. There is one rate for engines up to 1549cc and one for 1550cc and over.or cars registered before March 1st, 2001, car tax is based on engine size only. There is one rate for engines up to 1549cc and one for 1550cc and over.