California ICC UST Service Technician Practice Exam

How often must Cathodic Protection systems be tested after the initial test?

1. 6 months

2. 12 months

3. 24 months

4. 36 months

The correct answer is: 36 months

Cathodic protection systems are essential for preventing corrosion in underground storage tanks and piping. According to industry standards and regulations, these systems are required to be tested at specific intervals to ensure their effectiveness in protecting against corrosion. The correct answer indicates that cathodic protection systems must be tested every 36 months after the initial test. This requirement is based on guidelines provided by the National Association of Corrosion Engineers (NACE) and federal regulations, which emphasize the importance of periodic testing to ensure the continued operability and reliability of the cathodic protection systems. Regular testing is crucial because it helps identify any failures or issues that may compromise the integrity of the storage tanks and the surrounding environment. In contrast, shorter testing intervals, such as 6 months, 12 months, or even 24 months, are not mandated by those guidelines for cathodic protection systems specifically. These timeframes might apply to other types of inspections or maintenance activities, but for cathodic protection systems, the 36-month interval is the established standard. Understanding these requirements is essential for maintaining compliance with safety regulations and protecting the environment from potential contamination.