Template:Nutshell durable medium FCA rulebook

Durable medium means either (a) paper; or (b) any other communication addressed personally to the client that the client can save and keep unchanged as long as it is relevant, including disks, emails and files saved to hard drives but excluding internet pages unless they are personally addressed to the client.
Usually the form of communication must be appropriate to the relevant business and if the client is offered the choice between paper and the other communication, it must be the one the client choses.
Electronic communications count as context-appropriate if you have regular internet access.