the resolutions at the state or national level). Traditionally, soils data have been collected at the county level. Traffic accidents and crime statistics are collected locally. Incidences of disease data are most useful at the local level. Other possible themes include ZIP code areas, zoning requirements, and traffic flows.
It is evident that a local extended Framework must be defined with the cooperation of city and county officials, and that only those additional themes used for the majority of applications should be incorporated into an extended Framework. To do this, county officials need to be involved in the discussions leading to the definition and establishment of an extended Framework. These discussions should take the form of a nation wide needs assessment which would develop a clear articulation of the content and necessary scale of spatial data required to meet specific objectives and mandates at each level of government. The outcome of this must be a list of themes and their content that can be applied at the local level. This bottom-up approach is in line with the I-Team initiatives advocated by OMB. The committee is encouraged that the National Association of Counties (NACo) began formal cooperation with the FGDC in 1997. This cooperation needs to be continued with specific goals established relating to the definition of an extended Framework.
The starting point of a state or tribal nation extended Framework is also the FGDC’s Framework. Therefore, a state Framework will include geodetic control, orthophoto imagery, elevation, transportation, hydrography, governmental units, and cadastral information. The geodetic control, elevation, and orthophoto imagery layers may be supplemented by the state. Governmental units, a state responsibility that is often delegated to the local level (municipal boundaries, school district boundaries), would probably not receive much additional supplementation except for such features as state legislative district boundaries, state parks, and state forests. Similarly, the cadastral layer augmentation at the