True or false? Owners and operators do not have to maintain corrosion protection during temporary closure if the UST is empty.

The statement is false because owners and operators are required to maintain corrosion protection for underground storage tanks (USTs) even during temporary closure, regardless of whether the tank is empty. Corrosion protection is critical because it helps prevent leakage of any residual substances, which could pose environmental and safety risks.

The regulations specify that adequate corrosion protection measures, such as cathodic protection or the use of corrosion-resistant materials, must remain in place to ensure the integrity of the tank and the surrounding environment. Temporary closure does not exempt the UST from adhering to these safety standards. Failure to maintain corrosion protection could result in contamination of groundwater or soil, leading to significant legal and financial consequences.

Thus, maintaining corrosion protection is a continuous obligation for UST owners and operators, reflecting the ongoing responsibility to mitigate risks associated with tank operations, regardless of the tank's contents.