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Data on Aquatic Resources Tracking for Effective Regulation

Published by U.S. EPA Office of Water (OW) | U.S. Environmental Protection Agency | Catalog Last Checked: May 01, 2026 at 06:08 PM | Dataset Last Updated: February 28, 2023
DARTER is EPA's system to manage its workflow in the Clean Water Act Section 404 permit program. Section 404 requires a permit from the U.S. Army Corps of Engineers, or EPA-approved State, for the discharge of dredged or fill material into waters of the United States. EPA plays a number of roles in the Section 404 permit program including developing and interpreting policy, guidance and environmental criteria used in evaluating permit applications, determining the scope of geographic jurisdiction and reviewing and commenting on proposed Section 404 permits. DARTER allows EPA staff to: - Track agency involvement in pre-application coordination, review of public notices for proposed permits, review of third party mitigation projects and proposed jurisdictional determinations; - Prepare and share EPA-generated jurisdictional determinations; and - Access shared data from the U.S. Army Corps of Engineers’ national regulatory program data management system known as OMBIL Regulatory Module (ORM2)

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