- Keywords: Technical, Maritime
Relevant for ship owners/managers, yards, suppliers and flag states.
Improved efficiency and reduced risks when performing hull surveys
A close-up survey normally means the structure is within the reach of the surveyor’s hand. With RIT, the surveyor can avoid the use of costly rafting, cherry pickers or staging, while still obtaining the information required to credit a close-up survey of a tank or hold. The attending DNV GL surveyor will witness the survey and watch the details of the close-up inspection through a live video stream. The quality of the data obtained during RIT-assisted surveys must be equivalent to that of a traditional survey. The data is later compiled into a final report.
Hence, there are several advantages to using RIT compared to visually checking the condition of remote structural components, including reduced time and costs needed for preparation before the survey and improved safety for the surveyor and owner’s personnel. RIT can also eliminate the risk of damaging coatings, while reducing the time and costs needed for set-up. The quality of the data obtained during RIT-assisted surveys must be equivalent to that of a traditional survey.
Approved service suppliers
From 1 January 2019, DNV GL approves service suppliers to provide close-up surveys using RIT – e.g. drones, climbers or remotely operated vehicles (ROVs) – for ships and mobile offshore units. The service suppliers must be able to successfully carry out a close-up survey according to the requirements given by DNV GL. Examples of the requirements include relevant training and qualifications of the drone operators, adequate resolution of the live streaming and proper illumination equipment.
Enhanced Survey Program (ESP) ships
As the ESP Code is not clear on the applicability of RIT, acceptance from flag authorities is necessary before RIT is used for class surveys on ESP ships (oil tankers and bulk carriers).
Requirements for certification
Programme-specific requirements have been developed based on IACS UR Z17 and included in Class Programme 0484, Appendix A 16 “Firms engaged in surveys using remote inspection techniques (RIT) as an alternative means for close-up survey of the structure of ships and mobile offshore units”. The new programme was released in February 2019. Please note that ROVs used for in-water bottom surveys are covered by a separate AoSS programme, CP 0484 A3.
For customers: DATE – Direct Access to Technical Experts via My Services on Veracity. (category “Remote inspection techniques”)
Otherwise: Use our office locator to find the nearest DNV GL office.
2020 Sulphur update - outcome of the MEPC 74
The 74th session of the Marine Environment Protection Committee (MEPC 74) was held at IMO in London on 13–17 May 2019. This was the last MEPC meeting before the 0.50% global sulphur limit takes effect on 1 January 2020, and the focus was on the implementation and completion of guidelines to help stakeholders prepare and ensure consistent implementation. We strongly recommend stakeholders to prepare in due course and update plans according to the latest IMO guidance. This statutory news contains a summary of sulphur-related resolutions and circulars adopted at MEPC 74.
EU MRV and IMO DCS - some practical recommendations
This technical news contains some recommendations relevant to both EU MRV and IMO DCS.
Prepare for the Global Sulphur Cap 2020 with the IMO Ship Implementation Plan
The IMO has agreed on 1 January 2020 as the date for switching to 0.50% sulphur fuel globally. Now, as ship owners face the daunting task of preparing for the fuel oil switch, proper planning is essential. The IMO Guidance for developing a Ship Implementation Plan (SIP) is a useful tool, and described further in this technical news.
Survey by remote inspection techniques - use of approved service suppliers
The use of remote inspection techniques (RIT) is increasing. Today, drones, climbers, or robot arms, can be used as an alternative to close-up surveys in both the DNV GL rules and IACS Unified Requirements. RIT may significantly reduce the survey time and costs, while improving the safety of surveyors and the owner’s personnel. From 1 January 2019, DNV GL has approved the use of service suppliers for RIT. This technical news explains how RIT can be used and how suppliers can achieve DNV GL approval.
IMO requirements July 2018 to May 2021
This statutory news summarizes the most important IMO requirements entering into force from 1 July 2018 up to and including 31 May 2021.
Outcome of the IMO SSE 6 meeting - from habitable life boat environments to Ro-Ro deck fires
The IMO sub-committee on Ship Systems and Equipment (SSE) met in London on 4–8 March 2019. This statutory news summarizes the main topics discussed, such as, life-saving appliances, fire safety of Ro-Ro passenger ships, and on-board lifting appliances. All agreements made at the meeting are subject to final approval by MSC 101 in June 2019.
Recommissioning of laid-up ships and mobile offshore units - how to avoid surprises
When the market moves back from a downturn, vessels are leaving the lay-up buoys and the focus shifts from preservation to recommissioning. DNV GL has accumulated its best practices into a revised Recommended Practice (RP) containing a new approach for assurance of non-class equipment and systems during recommissioning.
Sulphur limit in ECAs - increased risk of PSC deficiencies and detentions
DNV GL keeps customers and other stakeholders updated on various aspects of the global 2020 sulphur cap and its implications for maritime shipping. While the global cap of 0.5% is just around the corner – entering into force on 1 January 2020 – this PSC news focuses on existing emission control areas (ECAs) with a 0.10% sulphur limit and the role of port state control (PSC) inspections.