Overview of 46 CFR Parts 30 to 40

• Applies to tank vessels and certain vessels carrying flammable and combustible liquids.

• Contains specific sections detailing definitions, requirements, and safety measures.

• Some exemptions noted within the subchapter.

46 CFR Subchapter D Part 30: General Provisions

• General Provisions: Establishes baseline regulations for tank vessels.

• Regulated Commodities: Lists all commodities controlled under this subchapter.

• Glossary & Definitions: Key terms include:

  • Cargo Grades: Classifications of cargo types.

  • Flammability: Degree to which substances can ignite.

  • Flame Screen: Equipment or mechanisms to block flames.

  • Tankers: Types of vessels involved in cargo transport.

46 CFR Subchapter D Part 31: Inspection and Certification

• Inspection Requirements: Regulates the inspection and certification of tank vessels.

• Certificates of Inspection: Documentation required for vessel operations.

• Barge Inspections: Procedures for inspecting barge vessels.

• Tank Vessel Manning: Regulations regarding crew on board.

• Operating Areas: Regions where vessels can operate legally.

• Load Lines: Specifications for safe loading of cargo.

• Engineering: Marine and electrical engineering requirements.

• Life-Saving Appliances: Safety equipment mandates on vessels.

46 CFR Subchapter D Part 32: Machinery and Equipment

• Machinery Regulations: Covers the specifications for machinery on tank vessels.

• Ventilation Requirements: Standards for ventilation in tanks and pump rooms.

46 CFR Subchapter D Part 34: Firefighting Equipment

• Fire Equipment Regulations: Details requirements for firefighting systems.

• Portable Extinguishers: Specifications for fire extinguishers.

• Fire Equipment Locations: Mandated locations for fire safety equipment on vessels.

46 CFR Subchapter D Part 35: Operations and Safety

• Crew Safety Protocols: Includes work vest regulations and stability requirements.

• Logbook Entries: Guidelines for officers’ crew logbook management.

• Emergency Requirements: Fire and emergency protocols to be followed.

• Casualty Reporting: Procedures for reporting casualties.

  • Navigation Safety Rules: General safety guidelines for navigation and engine department operations.

  • Cargo Handling Procedures: Ensuring safe handling of cargo and proper posting/marking tasks.

46 CFR Subchapter D Part 36: Elevated Temperature Cargoes

• Special Regulations: Specific measures for cargoes that must be heated during transfers.

46 CFR Subchapter D Part 38: Liquefied Flammable Gases

• Regulatory Focus: Information pertaining to the management of liquefied flammable gases.

46 CFR Subchapter D Part 39: Vapor Control Transfers

• Vapor Control Equipment: Specifications for vapor control systems.

• Vapor Collection Operations: Procedures during cargo transfer activities.

• Vessel-to-Vessel Transfers: Guidelines on balancing vapors during transfers.

• Multi-Breasted Loading: Safety measures for loading using a single facility vapor connection.

• Tank Barge Cleaning: Regulations for cleaning procedures involving vapor collection.