The loss of 190 10-hour spaces is to allow 'essential filming and testing to take place ahead of the transition', said a States' media release.
The filming will be for an advisory video for passengers to support the testing programme which will be carried out at testing centres at the ports and the East Arm itself.
These short films will enable anyone using the testing facilities at the harbour or airport to familiarise themselves with how to access the centres and take the necessary Covid-19 swabs before their planned travel.
Building work for the facilities is nearing completion so formal testing will be able to get under way.
Removal of the spaces will allow a safe working area for the setting up and the dismantling of the infrastructure required.
The filming cannot take place over a weekend or out of hours since they need to show procedures in a live environment.
Programme director for phase 5c Richard Evans said that every effort was being made to ensure the suspension of the spaces is for as short a time as possible.
In order to mitigate some of the disruption for commuters, two blocks of three-hour parking at North Beach will be rezoned as 10-hour parking for these two days, roughly 80 spaces.
'Commuters will also have access to the existing 40 spaces at Havelet that have remained as 10-hour parking throughout the (non) cruise liner season or could take the opportunity to car share or make use of public transport on these dates,' said Mr Evans.
'Similar arrangements will be put in place on future occasions when the testing facilities are in use on the East Arm along with some additional initiatives that will be aimed at reducing pressure on long-term parking in Town.'