Spills or overfills under 25 gallons that are contained and immediately cleaned up do not need to be reported as long as a record of the spill or overfill is kept for at least ______.

• A. One year
• B. Three years
• C. Five years
• D. Ten years

Answer: (C)

In this scenario, the emphasis is on keeping a written record for minor spills even though no formal report is required. The required retention period is five years. This length of time provides a reasonable window for reviewing past incidents, identifying patterns, and informing safety improvements without imposing excessive paperwork. Shorter periods like one or three years might not capture enough history to spot trends, while a ten-year retention is longer than typically needed for routine minor spills. Keeping the record for five years strikes the right balance and fulfills the regulatory expectation.