🔍 Key Concepts

• 46 CFR requirements for cargo pump room ventilation on tank vessels • Why ignition sources are tightly controlled in areas with flammable vapors • Difference between design requirements and grandfather clauses for older vessels

💭 Think About

• Which option talks about a safety feature that would actually reduce the risk of ignition in a space that may contain flammable vapors? • Do regulations for hazardous spaces on tankers usually get weaker for older ships, or do they maintain/strengthen safety requirements over time? • Does simply mounting breathing apparatus at an entrance change the need to control sparks and ignition sources inside the space?

✅ Before You Answer

• Check 46 CFR sections on tank vessel pump room ventilation to see if they mention "non-sparking" or similar words. • Verify whether there are date-based exceptions for these ventilation rules or if they apply generally to tank vessels. • Confirm whether the presence of SCBA (self-contained breathing apparatus) ever replaces or waives engineering safety features like proper ventilation.