Edinburgh Council is consulting on proposed parking controls, here: https://pclengagement-hub.co.uk/en-GB/projects/leith-northleith. They say
If you have any questions about the proposed controls, please look at our proposal images below, or check our FAQs document and an explanation of how CPZs works. If you would simply like to indicate your support for the proposals or would like to formally object to the overall proposal or any detail of it, you need to do that, in writing, by 12 November 2021. Please email us at firstname.lastname@example.org. You will need to include your full name, address and postcode in this correspondence.