Technical Circular No: 001/2024

Subject : Liberia – Revised Requirements in respect of Long-Range Identification and Tracking of Ships (LRIT).

         PDF file Download PDF 

1. Liberia Maritime Administration has issued Marine Advisory No. 38/2023 providing revised requirements in respect of LRIT. Specifically, the requirements for Conformance Testing of LRIT has been revised taking into account IMO Assembly Resolution A. 1192 (33).

2. As per the revised requirement, commencing 01 April 2024, all Conformance Test Reports will be issued with validity not exceeding twelve (12) months from the conformance test completion date.

3. Accordingly, wef 1 April 2024, the annual conformance test will be required to be conducted annually based on the anniversary date of the last conformance test.

4. Below table provides examples for due dates of annual conformance test based on the completion date of last conformance test.

Completion date of last conformance test Examples Due date for 1st annual conformance test on/after 1 April 2024
Last test done on 1 April –31 December (any year) 1 June (any year) 1 June 2024
Last test done on 1 January– 31 March (any year) 13 March (any year) 13 March 2025


5. All conformance tests will be conducted directly by the Liberian Administration Authorized Testing Application Service Provider (ASP) through the dedicated online portal as per details below.

Portal for online applications:

Pole Star Space Applications Limited
(T) +44 (0)20 7313 7400
(F) +44 (0)20 7313 7401

The Testing ASP will not accept tests ordered through a third party or a distributor.

6. For information on recognized maritime mobile satellite service ship earth station models, contact the Recognized ASP or the equipment manufacturer to determine suitability for LRIT.

7. For Inmarsat C shipborne equipment, if the equipment appears to be LRIT capable, the following steps to be taken:

  • Contact the manufacturer to confirm that the shipborne equipment has current software/firmware versions; and
  • Ensure that Polling & Data Reporting (PDR) functions are enabled; and
  • Ensure that Macro Encoded Message 11 (MEM-11) is enabled.

8. For Iridium shipborne equipment, all models listed are suitable for LRIT without further configuration.

9. Owners/operators and masters of Liberian flagged vessels are advised to be guided by above and ensure compliance.



This Technical Circular and the material contained in it is provided only for the purpose of supplying current information to the reader and not as an advice to be relied upon by any person. While we have taken utmost care to be as factual as possible, readers/ users are advised to verify the exact text and content of the Regulation from the original source/ issuing Authority.                              

             PDF file Download PDF