Search

Hazmat Training for Vessel Shippers

Posted on 7/9/2026 by Lion Technology Inc.

The US DOT requires hazmat employee training to cover all applicable modal requirements. If you ship hazmat/dangerous goods by vessel, you likely need to comply with the International Maritime Dangerous Goods (IMDG) Code.

IMDG Code Initial Training Requirements

Under the IMDG Code, personnel must be trained before performing covered work. Personnel may only perform functions for which they have not been trained under the supervision of a trained person [IMDG Code 1.3.1.1].

Learn about US DOT’s initial hazmat shipper training requirements here.

I Have IMDG Code Training. Do I Need DOT Training Too?

Yes. If you are preparing dangerous goods for transportation according to the IMDG Code, there are still many DOT requirements in 49 CFR that your shipment must meet, as well as administrative and operational requirements that shippers must comply with, such as training and cargo security rules. At a minimum, you must be trained in these additional requirements.

The DOT allows hazardous materials to be shipped under the IMDG Code for any shipments by vessel, provided the shipment complies with the additional DOT requirements (listed at 49 CFR 171.22, 171.23, and 171.25) and the shipper complies with all administrative rules in 49 CFR.

How Often Is Vessel Shipper Training Required?

The IMDG Code rules for training defer to “a competent authority” in each country. In the US, the DOT is the competent authority. Therefore, the three-year DOT training deadline applies to vessel shippers [IMDG Code 1.3.1.1].

What Must Be Included in IMDG Training Records?

When shipping to or from the US, all training records must include the following DOT-mandated elements:

  1. The hazmat employee’s name.
  2. The most recent training completion date of the hazmat employee’s training.
  3. A description, copy, or the location of the training materials used.
  4. The name and address of the person providing the training.
  5. Certification by the hazmat employer that the hazmat employee has been trained and tested, as required.

How Long to Keep IMDG Code Training Records

The IMDG Code requires training records to be retained “as deemed appropriate by the competent authority” [IMDG Code 1.3.1.3]. As explained above, that competent authority is the DOT.

Under the DOT rules, a hazmat employer must keep all current records for all hazmat employees for 90 days after their employment ends. In addition, training records dating back at least three years must be available upon request. This includes records of IMDG Code training, if required. [49 CFR 172.704(d)]

Who Enforces the IMDG Code Hazmat Training Mandates?

The DOT enforces all hazmat transportation training in the United States. Although vessel carriers require training on international rules, where applicable, the DOT requires training and training records only to comply with 49 CFR training rules. However, in order to do business with many vessel carriers, you must still comply with any stricter standards in the IMDG Code.

Tags: dangerous goods, hazardous materials, hazmat shipping, IMDG, IMDG Code

Find a Post

Compliance Archives

Lion - Quotes

Much better than my previous class with another company. The Lion instructor made sense, kept me awake and made me laugh!

Marti Severs

Enterprise Safety Manager

Very witty instructor, made the long times sitting bearable. One of the few training courses I can say I actually enjoyed.

John Hutchinson

Senior EHS Engineer

Lion courses are the standard to which all other workshops should strive for!

Brody Saleen

Registered Environmental Health Specialist

The instructor does a great job at presenting material in an approachable way. I have been able to save my company about $30,000 in the last year with what I have learned from Lion!

Curtis Ahonen

EHS&S Manager

Very good. I have always appreciated the way Lion Tech develops, presents and provides training and materials.

John Troy

Environmental Specialist

Lion's course was superior to others I have taken in the past. Very clear in the presentation and the examples helped to explain the content presented.

George Bersik

Hazardous Waste Professional

The instructor was excellent. They knew all of the material without having to read from a notepad or computer.

Gary Hartzell

Warehouse Supervisor

Best course instructor I've ever had. Funny, relatable, engaging; made it interesting and challenged us as the professionals we are.

Amanda Schwartz

Environmental Coordinator

Well designed and thorough program. Excellent summary of requirements with references. Inclusion of regulations in hard copy form, as well as full electronic with state pertinent regulations included is a great bonus!

Oscar Fisher

EHS Manager

I was recently offered an opportunity to take my training through another company, but I politely declined. I only attend Lion Technology workshops.

Stephanie Gilliam

Material Production/Logistics Manager

Download Our Latest Whitepaper

Explore ten hazardous waste management errors that caused generators in California the most trouble last year.

Latest Whitepaper

By submitting your phone number, you agree to receive recurring marketing and training text messages. Consent to receive text messages is not required for any purchases. Text STOP at any time to cancel. Message and data rates may apply. View our Terms & Conditions and Privacy Policy.