Question 778 Deck General

The correct answer is D) P/V valves with galvanized parts must be replaced. The reasoning behind this is that the carriage of styrene does not require the replacement of P/V (pressure/vacuum) valves with galvanized parts. This is not a specific requirement for the carriage of styrene cargo. The other answer choices, such as having authorization on the Certificate of Inspection, blanking off the cargo tank heating coils, and having a Certificate of Inhibition provided by the shipper, are all typical requirements for the safe carriage of styrene and other hazardous cargoes, but the replacement of P/V valves with galvanized parts is not one of them.