FGDC National Wetland Mapping Standard

A "National Wetland Mapping Standard" was developed by a work group of the Federal Geospatial Data Committee. The national standard for wetland mapping must be used in all mapping projects that are funded in part through the federal government. Non-federally funded wetland mapping projects are encouraged to comply with the standard. To ensure standards compliance of geospatial wetlands mapping refer to the FGDC Wetlands Mapping Standard which can be found here.

Updated Data Collection Procedures

The Data Collection Requirements and Procedures document has been updated to include digital mapping conventions related to Cowardin 2.0 (adopted by the FGDC in 2013), instructions on the NWI QA/QC Tool for Arc 10.x, the NWI Map Code Diagram and the NWI Water Regime Restriction Table sorted by sub-class. To download the updated document click here.

To facilitate accurate data production and inclusion into the National Wetlands Database it is recommended that you visit the U.S. Fish and Wildlife Service’s, National Wetlands Inventory, Contributed Data page here or contact them at .

Federal Funding Sources for Wetland Mapping

There are three primary websites which post available federal funding opportunities for wetland mapping.

  1. Grants.gov: The U.S Department of Health and Human Services is the managing partner for Grants.gov which is a searchable by keywords or more specific criteria. All discretionary grants offered by the 26 federal grant-making agencies can be found on Grants.gov.
  2. Cdfa.gov: The Catalog of Federal Domestic Assistance (CFDA) provides a full listing of all Federal programs available to State and local governments (including the District of Columbia); federally-recognized Indian tribal governments; Territories (and possessions) of the United States; domestic public, quasi- public, and private profit and nonprofit organizations and institutions; specialized groups; and individuals. The CFDA is also a searchable website by keywords, program number and participating agencies.
  3. EPA.gov: EPA Wetland Program Development Grants



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