The amount of time, officer time taken to process an application for a modification to an existing permission is still substantial and in some cases can be even more than that per a new proposal, but in those circumstances, and this is just by way of illustration because the  the actual fee regime is, is very variable, by way of illustration the fee chargeable for a  a, a modification is much less than for the application as a whole er f for, for the er er working as a whole.