Specifications include, but are not limited to: a. The Contractor is responsible for the production, installation and removal of all advertising materials. All advertising shall be displayed professionally and neatly. Placement of displays will be in a manner that best conforms to the environment in which it is placed. Any advertising which is torn or otherwise unsightly in appearance will be promptly removed or replaced at Contractor’s expense. If corrective action is not undertaken at the Contractor’s own initiative, The Authority reserves the right to require corrective action within 3 days of notification, at the Contractor’s expense. b. The Contractor shall use only display materials that conform to current industry standards and are acceptable to the Authority. Transit vehicle exterior display materials must be for exterior use, pressure sensitive removable vinyl posters, which have been specifically designed for direct application. Displays must have either a UV over laminate or a protective clear-coat.