MassGIS is the Commonwealth’s Bureau of Geographic Information. Its legislative mandate includes coordinating GIS activities in the Commonwealth’s public agencies and distributing GIS data. MassGIS has also developed and is the host for the Commonwealth’s web mapping services. If the Deliverables include the capability for viewing maps and related information as part of an Internet browser-based client application or in mobile mapping applications, and if those applications will display map information available through MassGIS web mapping services (e.g., parcels, orthophotos, streets, wetlands or any of MassGIS’ tile-cached map services), then Contractor shall use MassGIS geospatial web mapping services. Additionally, if the Deliverables include an application that relies on validating street addresses or geocoding addresses to determine a coordinate location for that address, the Contractor must discuss the possibility of using MassGIS address validation and geocoding services with MassGIS. MassGIS provides low or modest demand address validation and geocoding services which MassGIS may determine to be suitable for an application’s specific needs. MassGIS may grant a waiver of these requirements if Contractor demonstrates to MassGIS’ satisfaction that using the MassGIS services for the proposed application is not reasonably practical due to one or more of the following: (i) performance of the application would be degraded due to using the MassGIS services; (ii) the proposed application requires reliability that exceeds those that MassGIS can reasonably be expected to provide; (iii) the security requirements of the application preclude using the MassGIS services; and (iv) cost. Waivers are not valid under this Agreement unless they are provided in writing by the Director of MassGIS or, if the Director is not available, MassGIS’ Web Mapping Services Manager.