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North American Vertical Datum (NAVD) of 1988

The vertical control datum established for vertical control surveying in the Unites States of America based upon the General Adjustment of the North American Datum of 1988. It replaces the National Geodetic Vertical Datum (NGVD) of 1929.

Glossary Section
NFIP - National Flood Insurance Program
Last updated Mar 5, 2020