If you decide to transfer a domain from one registrar company to another, you will have to go through a couple of safety procedures. One of them is getting a unique EPP authentication code from the present domain registrar – on the condition that you are the registrant, since the code is sent to the owner's email address and nobody else can get it. You will need to provide this code to the new domain name registrar, or else they won’t be able to start the domain transfer. The EPP codes are case-sensitive and may contain numbers or special symbols such as dots or commas, which can be easily mistyped, so make sure you copy and paste the right code. As an extra safety measure, the transfer authorization code for a domain may be reset regularly. Certain registrar companies call this code an Auth key, a domain password or a domain secret as well.