Competition Minister Melanie Johnson has accepted undertakings from Lloyds TSB Group plc in relation to Abbey National plc.
The undertakings prevent Lloyds TSB from acquiring Abbey National's personal current account or SME businesses.
This follows the Competition Commission report of 10 July 2001, which concluded that the transfer of these parts of Abbey National's business to Lloyds TSB would be against the public interest.
Ms Johnson said: “The DGFT has advised me to accept these undertakings. I believe that they will satisfactorily address the adverse effects identified in the Competition Commission's report."
The parties have already signed the undertakings.