According to the Code of Federal Regulations (46 CFR) for Passenger Vessels, for how long do the drawn and sealed half-pint fuel samples need to be maintained and preserved on board?
• 46 CFR Subchapter H – Passenger Vessels and its requirements for fuel systems and fuel oil contamination control • Why inspectors and regulations care about traceability of fuel quality over time • The relationship between how long fuel is carried/used and how long evidence of its quality must be kept
• Ask yourself: If there were a machinery casualty possibly linked to bad fuel, how far back in time would investigators reasonably need to look? • Consider whether the regulation is focused only on a single voyage, a single fuel tank load, or on a longer compliance/recordkeeping period. • Think about whether CFR safety rules usually say “no requirement” when dealing with evidence that might be used in an investigation.
• Locate the specific 46 CFR section on fuel oil contamination and sampling for passenger vessels in Subchapter H. • Verify whether the text ties the retention period to a time duration (e.g., months/years) or to an event (e.g., until fuel is consumed). • Confirm that the requirement, if present, uses clear wording such as “shall be retained for ___” or “must be preserved for not less than ___.”
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