Specifications include, but are not limited to: Installation and ongoing maintenance of signs and other necessary activities of the successful proposer must not interfere with the District’s operations. Access to vehicles will be provided only at times consistent with the operational hours of the District. Vehicles will not be removed from day to day service for the purpose of installing or removing advertising signs. The successful proposer shall store its own equipment and materials. Installation of all advertising material is to take place at the District facility. The District reserves the right to determine the size, type, location and method of attachment of all exterior and interior advertisements. Development and production of all advertising shall be done by the successful proposer at the proposer’s sole expense.