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!!!!
The following vehicles are exempt: 1  Vehicles that run exclusively on alternate fuel. 2  New vehicles, until the test year 3 years following the model year of the vehicle. 3  Vehicles more than 25 years old. 4  Vehicles owned or registered by persons age 65 or older.