True or false? Only tanks need to be compatible with the regulated substances stored.

The correct assertion is that it is false to say that only tanks need to be compatible with regulated substances stored. In fact, compatibility must also be considered for other components of the underground storage tank (UST) system, such as piping and any fittings. If the piping or fittings are not compatible with the regulated substances, they could corrode, leak, or fail, leading to potential environmental contamination and regulatory violations.

Moreover, the materials that make up all aspects of the UST system, including the tank, piping, and any associated equipment, should be designed and constructed to safely handle the specific substances being stored. This ensures not only compliance with regulations but also the safety and integrity of the entire storage system. Therefore, it is crucial to evaluate compatibility comprehensively, rather than focusing solely on the tanks.