Specifications include, but are not limited to: The Concessionaire shall charge fair and reasonable prices for goods sold. Such prices shall not exceed those agreed to between the Concessionaire and the District; The Concessionaire shall operate, at its own expense, its ice cream trucks in a clean and sanitary manner; All employees, officers, agents, and subcontractors of the Concessionaire shall be neatly attired in uniforms that properly identify them as official Concessionaire personnel. The design of such uniforms shall be subject to the prior approval of the District. All uniforms worn shall be maintained in a neat and clean manner. Concessionaire staff must also have a name tag identifying the employee by name and position title.