The Department of Transport website, including uploading of forms, is under construction and has been for some time.
If you need access to any forms relating to driving licences, medical form [for over 70s, those with disabilities, or HGV licence], sale or transfer of vehicle, etc, these can be found on https://cyprusdriving.net/department-of-transport-forms/
Please scroll down the above page until you find the form you require.
