Specifications include, but are not limited to: Vendor shall provide a Project Manager as the primary contact and a knowledgeable back-up person. Any change in Vendor personnel during the project is subject to review and approval by the District. B. Vendor shall provide an estimated progress schedule and delivery/installation date after discussion with the District but soon after receipt of purchase order. The progress schedule shall indicate the proposed starting and completion of the phases of the Work within the contract time, including dates for production, shipment, delivery and installation. It shall include any other critical dates, such as deadlines for approval of shop/installation drawings, selections of finishes, fabrics and/or materials, receipt of district provided materials, Customer Owned Materials, changes, delays or cancellations. C. Vendor shall immediately notify the District representative or designer of any delays with custom materials, which could delay production so that materials maybe re-selected at the District’s option.