The cookies this site sets, and why.

cl_person: a random identifier, kept for a year, so that your Passport, trips and calendar stay with you before you have an account. Without it the Assistant could not remember the conversation you are having.

cl_session: set when you sign in and kept for thirty days, so that you stay signed in.

Both are readable only by this site's server (httpOnly), are sent only to this site, and are never used to follow you elsewhere.

No analytics, advertising or tracking cookies. If that ever changes, you will be asked first, and nothing of the kind will be set unless you say yes.

The law in the United Kingdom and in the European Union asks for consent before a site stores anything on your device, except what is strictly necessary for a service you asked for. Both of our cookies are of that kind, so there is nothing to ask you. We tell you about them here, and link to this page from every page.

The full map is drawn by Mapbox, another company. It does not load until you press "Load the map", and the notice beside the button says what loading it means. Your choice is remembered in your browser's own storage, not in a cookie, and you can withdraw it below. At the date above the map is not switched on, so there is nothing to choose yet.