The Competition and Markets Authority's (CMA) has approved BT's acquisition of EE.
There will be a distinct EE line of business following completion of the acquisition. This will be led by Marc Allera who will become EE CEO following completion of the deal.
BT Chief Executive Gavin Patterson said: "It is great news that the CMA has approved our acquisition of EE. We are pleased they have found there to be no significant lessening of competition following an in-depth investigation lasting more than ten months.
"The combined BT and EE will be a digital champion for the UK, providing high levels of investment and driving innovation in a highly competitive market. I have no doubt that consumers, businesses and communities will benefit as we combine the power of fibre broadband with the convenience of leading edge mobile services."
A prospectus will be issued in the week commencing January 25 with the deal set to close on January 29 when Deutsche Telekom and Orange will receive shares in BT. BT will report its Q3 2015/16 results on February 1.
Following completion of the deal Deutsche Telekom will have 12 per cent of BT shares and Orange will have four per cent. A representative of Deutsche Telekom will be appointed to the BT Board in due course.