🔍 Key Concepts

• Review the definition of "oil" in 33 CFR Subchapter O (Pollution Prevention) – especially the definitions section near the start of the subchapter. • Think about whether the regulations focus on only one type of petroleum product or on any substance that could cause an oily pollution incident. • Recall that MARPOL/US pollution rules often define oil in a way that covers oil in any kind or form, not just what we commonly call fuel or crude.

💭 Think About

• Ask yourself: Do the Pollution Prevention Regulations try to regulate just ship fuel, or all oily substances that could pollute the water? • Consider whether the legal definition of "oil" is usually narrow and specific (one product) or broad and inclusive (many forms). • Think: Would something like lubricating oil, sludge, or oily waste be covered if the definition only mentioned fuel oil or crude oil?

✅ Before You Answer

• Look up the exact definition of "oil" in 33 CFR Subchapter O (e.g., in the definitions section such as 33 CFR 151.05 or similar). • Verify whether the official definition mentions "any kind or any form" of oil, or if it limits itself to one specific type such as fuel oil or crude oil. • Confirm whether non‑petroleum oils (like animal fats or vegetable oils) could be covered by the regulatory definition, even though they are not petroleum.