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Oklahoma's Floodplain Management 101

The Oklahoma Water Resources Board (OWRB) has developed this guidebook with funding from the Community Assistance Program through an agreement between the Federal Emergency Management Agency (FEMA), the Oklahoma Department of Emergency Management, and OWRB.


Chapter 1—National Flood Insurance Program, describes the National Flood Insurance Program (NFIP) by listing its goals and objectives, defining the terms associated with the program, and explaining a community's responsibilities when participating in the NFIP. This chapter also explains the Emergency and Regular Phases of the NFIP.

Chapter 2—Oklahoma Floodplain Management Legislation, explains the Oklahoma Floodplain Management Act (OFA) of 1980 and describes how it affects Oklahoma communities. The duties of the Oklahoma Water Resources Board (OWRB) are listed as they relate to floodplain management. The Landlord and Tenant Act and the Real Estate Condition Disclosure Act are also discussed.

Chapter 3—Local Floodplain Regulations and NFIP Standards, outlines NFIP regulations and development standards. Standards for all floodplain development are described.

Chapter 4—Floodplain Ordinance Administration, explains how a community should administer its floodplain ordinance and keep records.

Chapter 5—Local Enforcement and Monitoring Program Compliance, provides procedures and alternatives on how to enforce floodplain management regulations.

Chapter 6—No Adverse Impact (NAI), today's flood is not tomorrows flood. NAI is explained and higher standards versus minimum NFIP regulations discussed.

Chapter 7—Flood Mitigation Planning, describes matters beyond the NFIP that a community should consider when implementing a floodplain management program, including disaster preparedness plans and structural and nonstructural flood mitigation measures.

Chapter 8—Professional Development, provides information on the availability of professional development opportunities, both organizational and educational.

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Page last updated: December 11, 2020

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