How long must records of single-walled spill prevention equipment testing be retained by owners and operators?

Owners and operators are required to retain records of single-walled spill prevention equipment testing for three years. This duration is established to ensure that sufficient documentation exists for regulatory compliance and to provide evidence of proper maintenance and testing practices for the equipment. Retaining these records for three years allows for adequate tracking of the effectiveness and reliability of the spill prevention systems, which ultimately contributes to environmental protection and regulatory accountability. By keeping these records on hand, owners and operators can demonstrate their commitment to compliance with safety regulations and their proactive approach to preventing spills and leaks from underground storage tanks.