What interval is required for the inspection of the interior of steel tanks with corrosion protection?

The required interval for inspecting the interior of steel tanks that have corrosion protection in place is five years. This timeframe is established to ensure that any potential issues, such as the deterioration of the corrosion protection or the integrity of the tank itself, can be identified and addressed promptly. Regular inspections help maintain safety and compliance with industry standards, reducing the risk of leaks or failures that could pose environmental hazards.

Five years strikes a balance between being a sufficiently long period to minimize operational disruption while still allowing for frequent enough evaluations to maintain effective tank condition. The specific interval supports proactive maintenance practices and aids in the long-term durability of the tanks. Other intervals, such as annually or every three years, may not allow enough time between inspections for existing coatings and protections to demonstrate wear and efficacy, while a ten-year interval may extend too long and risk overlooking critical issues that could develop over time.