Specifications include, but are not limited to: The Contractor will develop a marketing plan, identify and solicit potential advertisers, sell the available advertising spaces, install and remove advertising signs from the appropriate racks, frames or vehicles. The Contractor will be fully responsible for negotiating contracts with clients, documenting the contracts, installing and removing signs as outlined by the contracts. ; Interior bus signs shall be sold with a minimum placement of six months. Sign dimensions are: • 40-foot buses 28" x 11" Signs shall be printed on .020 Polystyrene or Lexan or material of comparable or higher specifications. There is a border of one (1) inch on interior signs. The minimum placement for interior signs shall be one per every 40’ bus in the fleet. Therefore, an advertiser shall purchase signs in groups of fifty (50), one per bus.