What is often a requirement for declaring a tank decommissioned?

Declaring a tank as decommissioned often involves ensuring that it has been emptied or altered to prevent reuse. This step is crucial because if a tank is not properly emptied, it can still pose environmental risks, such as potential leaks or contamination. By removing the contents or altering the tank's structure, you effectively minimize the risk that it could be used again, which is a primary goal of decommissioning.

Following proper decommissioning practices helps ensure compliance with safety and environmental regulations, thereby protecting public health and the environment from hazardous substances that may be associated with the tank's previous use.