PART 621 — RIVER BASIN INVESTIGATIONS AND SURVEYS [ 7 CFR 621 ]PART621 — RIVER BASIN INVESTIGATIONS AND SURVEYS [ 7 CFR 621 ]Table of ContentsSubpart A — General§ 621.1 — Purpose.§ 621.2 — Scope.Subpart B — USDA Cooperative Studies§ 621.10 — Description.§ 621.11 — Who may obtain assistance.§ 621.12 — How to request assistance.§ 621.13 — Conditions for approval.§ 621.14 — Recipient responsibility.Subpart C — Floodplain Management Assistance§ 621.20 — Description.§ 621.21 — Who may obtain assistance.§ 621.22 — How to request assistance.§ 621.23 — Conditions for approval.§ 621.24 — NRCS responsibility.§ 621.25 — Recipient responsibility.Subpart D — Joint Investigations and ReportsWith the Department of the Army§ 621.30 — Description.§ 621.31 — Who may request assistance.§ 621.32 — How to request assistance.§ 621.33 — Conditions for approval.§ 621.34 — Recipient responsibility.Subpart E — Interagency ...