In accordance with EU Directive 96/96/EC, passenger cars are required to undergo a roadworthiness test when they are four years old and every two years thereafter. The age and consequently the first-test-due date is determined by reference to the date of initial registration of the vehicle with subsequent test-due dates falling every two years after the first test-due date. Where a NCT inspection does not occur on the original test due date, the NCT certificate is valid from the date of the test to the next test-due date. This is to ensure that the car is again liable for a test in accordance with the test schedule laid down in the directive. As ownership is not a criterion in determining the test due dates, I have no plans to change the current arrangements.