A document that State Revolving Fund (SRF) agencies submit annually to the U.S. Environmental Protection Agency (EPA) outlining how the Drinking Water State Revolving Fund (DWSRF) will be used during a fiscal year. Once the EPA has reviewed and approved the IUP, the federal funds may then be released to the state. Federal regulations outline what must be included in the IUP, and each IUP must undergo a public comment period.
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