What is the required frequency for monitor system certification according to CCR, Title 23 UST Regulations?

The correct answer is based on the regulatory requirements outlined in the California Code of Regulations, Title 23, which governs underground storage tanks (USTs). According to these regulations, the monitoring systems installed for USTs must undergo certification every 12 months to ensure they are functioning correctly and maintaining compliance with environmental standards.

Regular certification is essential for the early detection of leaks and for ensuring that the monitoring system is effectively managing the risks associated with the storage of hazardous substances. This annual check helps to uphold safety and environmental protection protocols, reducing the potential for harmful spills and leaks into the environment.

The other intervals mentioned, such as 6 months, 24 months, and 3 years, do not align with the specified regulatory requirement and would not provide the level of oversight needed to ensure that monitoring systems are consistently operating within safe and acceptable parameters.