This bill updates the National Estuary Program under the federal water pollution law. It does this by changing section 320(i)(1) of that law, which governs how the program is authorized. The text provided does not list specific dates, funding levels, or new activities—only that the program is being reauthorized by amending this section of the law .

• What it does: Reauthorizes the National Estuary Program by revising section 320(i)(1) of the Federal Water Pollution Control Act (33 U.S.C. 1330(i)(1)) .
• Details not shown in the excerpt: timing, dollar amounts, and any added requirements or projects .