Internet Provider Security
|This article does not cite any references or sources. (March 2013)|
Internet Provider Security (IPS) tags are used by Internet Service Providers (ISPs)—specifically, registrars—to administer a domain registration service and related DNS services. An IPS tag is the label that applies to each registrar (ISP) and is required to transfer domain names from one registrar to another. All registrars who register domains in the .uk name space are allocated these tags when they apply to become an ISP. 
The original expansion of "IPS tag" was created and lost with Nominet UK's predecessor, the Naming Committee; however it is widely accepted that it probably stands for "Internet Provider Security tag". The term "IPS tag" itself is now considered obsolete by Nominet UK, and has since been replaced by the term "registrar tag".
Transferring a domain name from one registrar to another requires the original registrar to change the IPS tag to that of the new registrar. Domain name owners can often, but not always, change this tag themselves in the respective domain management control panels.
It is possible to change your IPS tag via the Nominet website. There is a cost for this of £10+VAT. 
- "Nominet Registrar Rules". Retrieved 25 April 2013.
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