ISF Watchkeeper

ISF Watchkeeper is a software tool for running on board ships at sea. The software helps to make it easier for companies to comply with work and rest hour regulations, by testing hours of work and rest for seafarers.

Failure to maintain individual seafarers’ work hour records that comply with the global format adopted jointly by the International Labour Organization (ILO) and the International Maritime Organization (IMO) could result in Port State Control difficulties, including possible ship detention.

To assist ship operators, the International Chamber of Shipping (ICS), in partnership with IT Energy have produced Watchkeeper in a format that is easy to use for seafarers and also includes an innovative online monitoring service for shore-based decision makers.

ISF Watchkeeper complies with the following regulations:


    International Convention of Standards of Training, Certification and Watchkeeping for Seafarers, 1978, as amended (IMO STCW)

    Maritime Labour Convention, 2006 (MLC)
  • ILO C180

    Seafarers' Hours of Work and the Manning of Ships Convention, 1996 (C180)
  • OPA 90

    The US Oil Pollution Act of 1990 (OPA 90)

    Oil Companies International Marine Forum Recommendations Relating to the Application of Requirements Governing Seafarers' Hours of Work and Rest (OCIMF)


The active regime on each vessel can be viewed using the Fleet page

Guidance on choosing the correct testing regime within ISF Watchkeeper

Regime selection flow chart