Revise where necessary the Spill Prevention, Control and Countermeasure (SPCC); Facility Response Plan (FRP); and/or Accidental Release Prevention Program (40 CFR Part 68) rules to prevent impacts to the environment and/or public from spills, releases, fires, and explosions that can occur at bulk aboveground storage facilities storing gasoline, jet fuels, blendstocks, and other flammable liquids having an NFPA 704 flammability rating of 3 or higher.
At a minimum, these revisions shall incorporate the following provisions:
a) Ensure bulk above ground storage facilities conduct and document a risk assessment that takes into account the following factors:
1. The existence of nearby populations and sensitive environmenls;
2. The nature and intensity of facility operations;
3. Realistic reliability of the tank gauging system; and
4. The extent/rigor of operator monitoring
b) Equip bulk aboveground storage containers/tanks with automatic overfill prevention systems that are physically separate and independent from the lank level control systems.
c) Ensure these automatic overfill prevention systems follow good engineering practices.
d) Engineer, operate, and maintain automatic overfill prevention systems to achieve appropriate safety integrity levels in accordance with good engineering practices, such as Part 1 of lnternational Electro-technical Commission (IEC) 61511-SER ed1.0B-2004, Functional Safety - Safety Instrumented Systems for the Process Industry Sector.
e) Regularly inspect and test automatic overfill prevention systems to ensure their proper operation in accordance with good engineering practice.