California ICC UST Service Technician Practice Exam

Under what condition may the local agency waive the requirements for overfill protection?

1. If the UST is filled by over 50 gallons

2. If the UST is filled by transfer of less than 25 gallons

3. If the UST is filled by transfer of exactly 25 gallons

4. If the UST is filled more than twice a month

The correct answer is: If the UST is filled by transfer of less than 25 gallons

The local agency may waive the requirements for overfill protection specifically when the UST is filled by a transfer of less than 25 gallons. This provision recognizes that smaller transfers pose a significantly lower risk of overfilling and associated environmental hazards. The rationale behind this stems from the understanding that overfilling is closely linked to the volume being transferred; smaller quantities are easier to manage and control, thereby reducing the likelihood of incidents. In practice, this waiver allows for more practical operational efficiencies without compromising safety, particularly in scenarios such as top-offs or minor adjustments where larger amounts of fuel are not involved. While filling practices must always prioritize safety, regulatory allowances for smaller quantities help facilitate routine operations without imposing excessive constraints. Other conditions mentioned in the choices do not provide suitable circumstances for waiving overfill protection because larger volume transfers inherently increase risks and necessitate safeguards.