The purpose of the Modernizing Access to our Public Waters Act of 2025 is to improve how data about public outdoor recreational use of federal waterways is collected, standardized, and shared among various federal agencies. The goal is to make it easier for the public to access information about fishing restrictions, waterway access, and navigation, ultimately enhancing outdoor recreational opportunities. Key provisions of the Act include the requirement for federal agencies to develop and adopt standards for data collection and sharing within 30 months of the law's enactment.