To amend the Frank LoBiondo Coast Guard Authorization Act of 2018 to direct the Commandant of the Coast Guard to provide certain data related to water quality, and for other purposes.

HR 1452 requires the Coast Guard to provide specific water quality data about approved ballast water systems to any state, the District of Columbia, or U.S. territory upon request. The bill mandates the Coast Guard to share detailed information on both "challenge" (pre-treatment) and "post-treatment" water quality, including biological organism concentrations, for systems with Coast Guard type approval. This applies to data related to systems approved under federal regulations for managing ballast water on ships. The provision aims to improve transparency about ballast water management system performance for environmental oversight by state and local authorities.