The Department of Justice has imposed major concessions upon Live Nation and Ticketmaster in approving the companies' merger.

Included in the settlement is a requirement that Ticketmaster Entertainment Inc. license its ticketing software to competitor AEG and sell its subsidiary Paciolan to Comcast Spectacor.

The merged entity would also be under a 10-year court order prohibiting it from retaliating against venues that choose to sign ticket-selling contracts with competitors.

Assistant Attorney General Christine Varney announced the merger conditions on Monday.