Your vessel is preparing for cargo operations. Prior to handling Class 1 explosives the responsible person must ensure which of the following?

Correct Answer: Option B — that all sources of electromagnetic radiation are de-energized

Class 1 explosive materials are highly sensitive to electromagnetic radiation (HERO regulations). Prior to cargo handling, the responsible person must ensure all radar, radio transmitters, and other sources of electromagnetic radiation are completely de-energized to prevent premature detonation.