St. Louis (KSDK) - The St. Louis Convention and Visitors Commission continue to negotiate to bring the Edward Jones Dome to first tier status.

The CVC sent a release this morning with amendments to their previous proposal that put them and the team roughly $500 million apart.

The CVC said in a statement, "In response to concerns expressed by the St. Louis Rams regarding the preliminary plan for first tier improvements submitted... the plan has been amended."

Theentire 128-pageplancan be viewed online.

The new plan was submitted to the Rams on August 17.

The St. Louis Rams and the CVC headed to arbitration over the Edward Jones Dome in June.

Negotiations began in February with the CVC proposing $124 million in Dome improvements.

The Rams countered with a much broader plan that city leaders say could cost $700 million.

The CVC rejected that plan, telling the Rams that their proposal, "guts and demolishes most of the current facility, eliminates significant improvements made with public money, and proposes virtually a new facility."

Under the terms of the lease, if the Dome is not among the top tier of NFL facilities the Rams will be free to leave after the 2014 season.

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