Data products are described in a standardized format and grouped by producing agency. A cross-reference matrix is provided to help readers find products by data type.
The products listed in the Manual include only those that currently are distributed by the agencies. Readers interested in historical Federal geographic data products should contact the Reference Services Staff of the National Archives and Records Administration at (202)501-5579. The Map and Geography Division of the Library of Congress also has an extensive collection of current and historical geographic data products form Federal and non-Federal sources. The Division can be reached at (202)707-MAPS.
Readers are invited to provide corrections and to suggest other Federal products or information for inclusion in future editions of the Manual. Readers also are encouraged to comment on the usefulness of the Manual, and to suggest improved methods of presenting the information. Please see the "Reader Response Form" on page A-1.