🔍 Key Concepts

• Portable CO₂ extinguisher behavior after ANY discharge under USCG/industry practice • Difference between partially used vs. fully charged fire extinguishers • Risks of mixing partially discharged and fully charged extinguishers in the same rack

💭 Think About

• Ask yourself: After a fire or drill, would you want to grab an extinguisher that might not be full in the next emergency? • Which option ensures that no one mistakenly relies on a unit that has already lost part of its charge? • Which choice most clearly separates or identifies partially used units from fully ready units?

✅ Before You Answer

• Verify which option makes it obvious that the extinguisher is not at full capacity for future use. • Check which choice avoids returning a potentially unreliable extinguisher to the rack with others. • Confirm which procedure best supports safety and readiness in an emergency.