When using the Code of Federal Regulations...

Question 1 / 2707066636ee728f7522a1c518e64

Question 1 of 2707066636ee728f7522a1c518e64

When using the Code of Federal Regulations (CFR's) for Tank Vessels, you see T/O and B/C. What do the T and B tell you?

Question 1 of 27070

When using the Code of Federal Regulations (CFR's) for Tank Vessels, you see T/O and B/C. What do the T and B tell you?

🔍 Key Concepts

• How tank vessel regulations are organized in the Code of Federal Regulations (CFRs) • Meaning of letter codes like T/O and B/C in tank vessel tables and lists • Relationship between these codes and cargo types, vessel types, and operating areas

💭 Think About

• Look at where you usually see T/O and B/C in the tank vessel sections—are they next to cargo names, vessel descriptions, or operating areas? • Ask yourself: do these letters more logically describe what the ship is, where it can go, or what it can carry? • Think about what information needs quick shorthand in tank vessel regulations: is it more important to quickly show the vessel type, the waters, the construction, or the cargo?

✅ Before You Answer

• Check whether T and B are used consistently alongside lists of different cargoes or different vessel types • Verify if T/O and B/C appear in tables that classify products or in sections that specify construction or operating limits • Confirm whether these codes change when the cargo changes or when the voyage area (inland, coastwise, oceans) changes

Question 1 of 27070

When using the Code of Federal Regulations (CFR's) for Tank Vessels, you see T/O and B/C. What do the T and B tell you?

Type of vessel to which the regulation applies

Special construction limitations

The waters in which vessels may operate

Grades of cargo which may be carried

Question 1 / 2707066636ee728f7522a1c518e64

Question 1 of 2707066636ee728f7522a1c518e64

When using the Code of Federal Regulations (CFR's) for Tank Vessels, you see T/O and B/C. What do the T and B tell you?

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Question 1 of 27070

When using the Code of Federal Regulations (CFR's) for Tank Vessels, you see T/O and B/C. What do the T and B tell you?