ECDIS back up arrangements

IMO performance standards require back up arrangements to be in place in case of electronic chart display and information system (ECDIS) failure. Find out what back up arrangements you need to have in place on your vessel.

The IMO performance standards for ECDIS require that adequate back up arrangements should be in place to ensure safe navigation in case of an ECDIS failure. The function of a back up system is to enable safe takeover of the ECDIS functions (to ensure that an ECDIS failure does not develop into a critical situation), and to provide means of safe navigation for the remaining part of the voyage in case of an ECDIS failure.

Back up for Australian flagged ships

For Australian flagged ships, you have two options to meet the back-up requirements for ECDIS.

Option 1

A second compliant ECDIS which must be independent of the main ECDIS and connected to the ships main and emergency power supply (refer SOLAS Regulation Chapter II-I). It must also be connected to systems providing continuous position fixing, gyro compass and speed and distance measuring device. The back up ECDIS must have the chart database and voyage plan loaded before commencement of the voyage. In confined waters, the back up arrangements must be in operational mode.

Option 2

A folio of paper charts that satisfies SOLAS carriage requirements, corrected to the latest available notices to mariners, covering the intended voyage and showing the intended voyage plan.

Nautical charts

Under either of these options, and depending on the application of SOLAS Reg V/19, an Australian flagged ship can carry nautical charts in accordance with the following options:

  • paper charts
  • two independent IMO compliant ECDIS units
  • one IMO compliant ECDIS unit and one set of paper charts.

Depending on the ships voyage, type, size and construction date, the paper charts option alone will not be acceptable after the mandatory carriage requirement date as specified in SOLAS Reg V/19.

Back up for non-Australian flagged ships

Non-Australian flagged ships should comply with SOLAS and their flag State requirements.

Last updated: 

Thursday 30 July 2020