What Is STCW? Complete Guide for Seafarers (2026)
What is STCW?
If you are planning to work at sea or start a career in the maritime industry, one of the first terms you will encounter is STCW.
STCW stands for Standards of Training, Certification and Watchkeeping for Seafarers. It is an international convention developed by the International Maritime Organization (IMO) to establish minimum standards of competence for seafarers worldwide.
The convention ensures that every officer and rating serving on board a ship has the required education, training, certification, and practical skills to perform their duties safely and professionally.
Today, STCW is recognized by almost every maritime nation and is considered one of the most important international maritime conventions.
Why Was STCW Created?
Before the STCW Convention was adopted, each country had its own standards for training seafarers.
This created significant differences in competency levels between officers and crew members from different countries, increasing the risk of accidents at sea.
To solve this problem, IMO adopted the STCW Convention in 1978, making it the first international agreement to establish global standards for maritime education and certification.
The convention entered into force in 1984.
Objectives of STCW
The primary objectives of STCW are to:
- Improve safety at sea.
- Protect human life.
- Reduce maritime accidents.
- Protect the marine environment.
- Standardize maritime training worldwide.
- Ensure all seafarers possess minimum professional competence.
Who Needs STCW?
STCW applies to almost everyone working on board commercial ships, including:
- Masters
- Chief Officers
- Deck Officers
- Chief Engineers
- Second Engineers
- Engineering Officers
- Electro-Technical Officers (ETOs)
- Ratings
- Catering personnel on certain vessels
- Cadets
Whether you work on container ships, oil tankers, LNG carriers, offshore vessels, or passenger ships, STCW certification is generally required.



