USCG Approved Tank Ship Dangerous Liquids Course
This course provides training to mariners who wish to obtain an endorsement to their US Coast Guard Merchant Mariners Credential as a Tankerman. This course is five (5) days and satisfies the requirement for Tank Vessel Assistant, Tank Barge-PIC, Tank Ship-PIC, and Tank Ship Dangerous Liquids.

Why Thousands of Mariners Choose Sea School?
Each year, over 7,500 students choose Sea School for their maritime training. We offer 30+ USCG-approved courses across in-person, online, and satellite formats, with training available at 6 locations nationwide. Team training is also available on-site or via satellite to meet company needs.
















This course provides training to mariners who wish to obtain an endorsement to their US Coast Guard Merchant Mariners Credential as a Tankerman. This course is five (5) days and satisfies the requirement for Tank Vessel Assistant, Tank Barge-PIC, Tank Ship-PIC, and Tank Ship Dangerous Liquids.

This course provides training to mariners who wish to obtain an endorsement to their US Coast Guard Merchant Mariners Credential as Tankerman. The Tank Ship Dangerous Liquids course is approved by the U.S. Coast Guard and satisfies the following requirements of 46 Code of Federal Regulations (CFR) and the STCW Code, As Amended:
Course requirements of 46 CFR 13.201(c)(4) for an endorsement as Tankerman-PIC DL and for an endorsement as Tankerman-PIC (Barge) DL
Course requirements of 46 CFR 13.501(C)(4) for an endorsement as Tankerman Engineer DL
Requirements of 46 CFR 13.603(a)(2), 46 CFR 13.603(b)(2), 46 CFR 13.603(c)(2) and the STCW Code Table A-V/1-1-2 for an STCW endorsement for Advanced Oil Tanker Cargo Operations
Requirements of 46 CFR 13.605(a)(2), 46 CFR 13.605(b)(2), 46 CFR 13.605(c)(2) and the STCW Code Table A-V/1-1-3 for an STCW endorsement for Advanced Chemical Tanker Cargo Operations
Course requirements of 46 CFR 13.401(e)(1) for Tankerman Assistant (DL) and the requirements of 46 CFR 13.609(a)(2) and the STCW Code Table A-V/1-1-1 for a STCW endorsement for Basic Oil and Chemical Tanker Cargo Operations.
This course is principally intended for candidates who hold or will hold a USCG Merchant Mariner’s Credential and serve as or will serve as Tankerman. Ideally, Tankerman PIC (Tank Ship) and Tankerman PIC (Barge) candidates will have met the USCG requirements for participation in the minimum number of transfers prior to attendance. If not, they have five years from the course completion date to meet these requirements. Students are expected to be able to read and speak English. The course will also be of value to others serving as supervisory personnel in the industry or on vessels directly involved with the bulk shipment of dangerous liquids by water.
Why Thousands of Mariners Choose Sea School?
Each year, over 7,500 students choose Sea School for their maritime training. We offer 30+ USCG-approved courses across in-person, online, and satellite formats, with training available at 6 locations nationwide. Team training is also available on-site or via satellite to meet company needs.
















Real-World Expertise
Excellence starts with a strong foundation. We believe in mastering fundamental skills, building confidence, and ensuring every mariner has the knowledge and expertise needed to succeed in their career.
Flexible Learning Options
True leadership is demonstrated through action. We foster a hands-on approach, where mariners learn by doing and gain real-world experience that prepares them for the challenges of the industry.
Career Advancement
In the maritime world, challenges are inevitable - but so are solutions. We encourage proactive thinking, problem-solving, and the courage to take initiative.
Industry-Recognized Certifications
We never settle for mediocrity. Whether in training, leadership, or problem-solving, we strive for the highest standards in everything we do.
A Strong Community & Industry Network
Success in the maritime industry requires a strong work ethic. We embrace a roll-up-your-sleeves mentality, knowing that real growth comes from effort and persistence.
Confidence & Leadership Development
Ttrue professionals must be ready to adapt. We believe in staying agile, embracing change, and continuously expanding our skills to meet new challenges.
We’ve developed comprehensive, engaging, and practical curriculum to set you up for success on the water
While the curriculum represented on the Sea School website is a general layout of course information, it is not the exact order in which lessons are taught.
General characteristics, compatibility, reaction & safety precautions for Bulk Liquids defined as Dangerous Liquids in 46 CFR Subchapter D.
General characteristics, compatibility, reaction & safety precautions for Bulk Liquids defined as Dangerous Liquids in 46 CFR Subchapter D.
- Cargo systems
- Cargo-handling systems
- Instrumentation systems
- Auxiliary systems
- Cargo systems
- Cargo-handling systems
- Instrumentation systems
- Auxiliary systems
- Operations connected with loading and discharging of cargo
- Operating procedures and sequences for controlling the cargo tank environment
- Load plan, stability, and stresses during cargo transfers and ballasting
- Load line, draft and trim. Stability letter requirements
- Rules pertaining to operational procedures and pollution prevention
- Operations connected with loading and discharging of cargo
- Operating procedures and sequences for controlling the cargo tank environment
- Load plan, stability, and stresses during cargo transfers and ballasting
- Load line, draft and trim. Stability letter requirements
- Rules pertaining to operational procedures and pollution prevention
- Emergency procedures
- Occupational health and safety standards
- Emergency procedures
- Occupational health and safety standards
- Terminology for tankships carrying oil and chemicals
- Tank barge terminology
- Terminology for tankships carrying oil and chemicals
- Tank barge terminology
- Cargo-tank cleaning procedures and precautions
- Inert Gas Systems (IGS) Principles and procedures of vapor-control recovery systems
- Operating procedures. Information systems on hazards of cargo
- Confined space entry
- Vessel response plans
- MARPOL 73/78 Annex I and Annex II requirements
- Cargo-tank cleaning procedures and precautions
- Inert Gas Systems (IGS) Principles and procedures of vapor-control recovery systems
- Operating procedures. Information systems on hazards of cargo
- Confined space entry
- Vessel response plans
- MARPOL 73/78 Annex I and Annex II requirements
A Simple 3-Step Process to Get Certified and Start Your Maritime Career
Choose Your Course
Pick the course that fits your experience level and sea time and select the available format that works for you (in-person, Zoom, or online).
Enroll & Prepare
Register online or at a Sea School location. Ensure you meet eligibility requirements and start reviewing the provided study materials.
Get Certified
After finishing the course, you will need to submit your application to the Coast Guard to receive your Merchant Mariner Credential (MMC).

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Tank Ship Dangerous Liquids: Everything You Need to Get Certified
No. Our course gives students a Tank Ship Dangerous Liquids endorsement but it does not qualify students for the LG (liquified gas) endorsement.
The Tank Ship Dangerous Liquids course is a 5 day course that covers slightly more material than the Tank Barge-PIC course. As a result, students who take and pass the Tank Ship Dangerous Liquids course and have the relevant sea time can apply for Tank Assist, Tank Ship-PIC, Tank Barge-PIC, and Tank Ship Dangerous Liquids endorsements.
The Tank Barge Person In Charge (PIC) is responsible for the safe and compliant transfer of liquid cargo. Their duties include pre-transfer planning, overseeing cargo transfer operations, emergency response, and regulatory compliance.
Your Journey Begins Here – Get Certified & Get on the Water!
Helping thousands of mariners every year, Sea School is a leader in the maritime education space. Whether you are new to the industry or looking to add onto your Merchant Mariner Credential, find the courses right for you at Sea School.







