BWTS Testing EPA-VGP & IMO-D2

Vessels with Ballast Water Treatment Systems installed and planned to sail to US waters, need to comply with both regulations.

  • US EPA VGP 2013
  • IMO BWM.2/Circ.70

Vessels sailing in US waters must comply with the US maritime regulations (EPA VGP 2013), just for the simple reason that the US is not a signatory of the Ballast Water Management (BWM) Convention.

In order to comply with the regulations, the discharge water from BWTS need to be tested in order to confirm Biological Efficacy, and that the system is operated in accordance with the standards and requirements.

By performing the discharge water testing the specialist (24marine.com) can check the mechanical, physical, chemical and biological process of the BWTS, and compliance with regulations, It is recommended that the Sampling and Testing is performed by a independent test facility, accredited and certified to perform the tests required. See 24marine.com for more info.


24Marine will verify that your BWMS is operated in accordance with performance and standards at discharge as per USCG  and IMO.

Different type of systems (Chlorine, Ozone, Electrolytic, Ultraviolet, Pasteurization, etc) require different type of tests, sampling and check procedures.

When the test are performed by land based facility (Accredited Laboratory) it is really important to hire a specialist (trained) water sampling specialist, in order to collect, filed test, preserve, transport, document and deliver the samples to the lab following the standards. If the Sampling procedures are not followed by standards the sample can be declared as not valid.

Cargo Tanks – Drone Inspection

Drones and UAV offer a very real solution for the inspection of confined areas, such as tanks / cargo holds. Traditional inspection of these tanks is a laborious, expensive and poses many potential risks. The use of a drone revolutionises the time  needed and the the safety of cargo tanks and cargo holds inspection.

By performing tanks  and cargo holds inspections using drones the specialist (24marine.com) can check the the real time conditions of places that are not accesible by normal human conditions.

A drone can be quickly deployed to capture images and video to allow asset inspectors to view all internal spaces. This includes fitting pipes, wall and bulkheads junctions, welding, structural members, without the need for workers to spend time in a highly hazardous environment,  workinng at high.

Industry statistics shows that 98% of the costs are related to HSE and preparation, only 2% to the inspection itself. By removing the need for staging, scaffolding, downtime and the time is taken for humans to enter confined spaces leads to a cost reduction that amounts to hundreds of thousands of dollars


Traditional cargo tank inspection takes days to implement. Tank inspections carried out by a drone can take as little as two hours per tank. or cargo hold.

Cargohold Condition Survey with Virtual Reality

Every vessel or offshore installation, no matter the size and type, has a high potential accident opportunity. While the seaman, surveyors, contractors may be experts in one area, they may not be fully aware of the dangers and potential accidents that can happen onboard.

We in 24marine strongly believe that virtual reality can contribute to decrease the number of preventable accidents and bring a new dimension of details on the survey reporting systems. It has the potential to document conditions, detect failures, perform tests, and save lives in the long-term.

In the video below 24marine team conducted a Virtual Reality Survey on a Cargo Hold, using Enterprise Level Drones and Virtual Reality post-processing referring the spaces to the vessel drawings.  To navigate virtually inside the cargo hold, please click on this link http://www.24marine.com/vrcargohold/

Cargohold inspection with Virtual Reality by 24marine.com

The virtual replication of the surveys spaces allows decision makers to assess the survey areas, in details and without risking any life, a part of introducing big savings on scaffolding, equipment and preparation time. Below a summary of benefits of using virtual reality in cargo hold and confined spaces onboard ships:

  1. Increase quality.
    Virtual reality offers a common spatial experience that leads to better decision-making. Because there are almost no misinterpretations.
  2. Save time and money.
    By allowing a better pre-planning stage, as drones and virtual reality crew and sets are reduced compared with other techniques as scaffolding, ropes crews, cherry-pickers.
  3. Improve survey review.
    The inspected area gets recorded in real time (real life), can be analyzed and re-analyzed as many times as required.
  4. Reduce downtime.
    Surveys performed by drones and Virtual Reality, reduced the impact of surveys times on vessels busy and tied schedules.