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'"1'12") '. UU ",i~ . II. ISSUE Incorporation of the Colorado River Floodway and its provisions into local flood plain management regulations. DISCUSS ION . To restore and maintain an effective Colorado River Floodway requires that the Floodway and its provisions be incorporated into local flood plain management regulations. No specific changes in National Flood Insurance Program rates nor participation in the Program can occur until such regulations have been amended to reflect the Floodway and its provisions. Model regulation amendment language would provide for the efficient, timely, consistent, and coordinated incorporation of the Colorado River Floodway into existing flood plain management regulations as well as for establishment of regulations for areas along the river. There presently exists for the three states in which the Colorado River Floodway resides, model flood plain management ordinances which meet the minimum requirements of the respective State statutes and the National Flood Insurance Act of 1968, as amended. These, together with handbooks and other guidance material, are intended to assist local enti ties in the development of their flood plain management ordinances. In the case of the State of Nevada, the model ordinance applicable to the Colorado River is entitled "Uniform Regulations for the Control of Drainage, Clark County Regional Flood Control District." For Arizona, the Arizona Department of Water Resources has a model regulation referred to as "Model Ordinance for Flood Damage Prevention." Likewise, in California, the California Department of Water Resources has developed a model ordinance, the most recent edition of which is referred to as "Model Floodplain Management Ordinance for California Communities, April 1987." RECOMMENDATION . To help provide for the expeditious and uniform implementation of revisions to local flood plain management regulations that will provide for the restoration and maintenance of the Colorado River Floodway, it is recommended that the following provisions be used as the basis for amendments to local regulations. These provisions should be incorporated into the model regulations for flood plain management for the three States in which the Colorado River Floodway is located. The recommended provisions apply to 1II-4