Compressed Gas Cylinder Safety and Oversight Improvements Act of 2025

S 2320, the Compressed Gas Cylinder Safety and Oversight Improvements Act of 2025, requires foreign manufacturers of gas cylinders used in US hazardous material transport to obtain annual approval from the Transportation Secretary, with potential 5-year approvals under strict conditions. It mandates new application questions about past penalties, delinquencies, and sanctions, and requires public notice and 30 days of comment before approving foreign manufacturers. The bill also creates a process for reevaluating approvals based on new evidence, requires annual publication of approved manufacturers' lists, and authorizes foreign inspections with cost recovery. This directly affects foreign companies manufacturing cylinders for US transportation, strengthening oversight of their compliance history and safety practices.