Seafarer documentsEndorsements and recognition
STCW Additional Knowledge Evidence for a Radio Operator
- STCW I/2.4
- STCW IV/2
- Brief entry
- Checked 6 October 2026
- Document type
- Document
- Validity
- As shown on the issued document
Brief entry: the name, code, purpose and source. A full entry will follow.
Contents2
1 What it covers
Evidences additional STCW radio-operator knowledge, separately documented or incorporated in the radio-certificate examination.1,2
Who needs it. Radio-certificate holders for whom the administration issues this endorsement.1,2
2 Validity and renewal
Document validity. The expiry date, if the issuing system sets one, is shown on the document itself. This reference does not calculate personal expiry dates.
Maintaining competence. There is no international renewal interval for this document.1,2