According to U.S. regulations, which of the following is a requirement of the ventilation system of a pump room on a tanker?

Correct Answer: Option B — the regulation requires that the ventilation be non-spark producing

46 CFR 32.60-20 requires pump room ventilation systems to be non-sparking to prevent ignition of flammable vapors. The fan blades and housing must be constructed of materials that will not produce sparks if they strike the casing, ensuring the ventilation system itself does not become an ignition source.