Underwater Services in Brazil: Approximately 46 Operations Through Early September 2026

Seachios reports approximately 46 diving operations in Brazil between January and September 5, 2026, successfully completed for multiple clients under the company’s operational control and supervision. The work ranged from underwater inspections, hull cleaning, and propeller polishing to support for in-water surveys and underwater inspection in lieu of drydocking (UWILD).

For vessel operators, this September update connects the reported activity with practical considerations for arranging underwater work: defining the scope, confirming local requirements, coordinating survey needs, and making effective use of a limited port-call window.

From underwater inspection to survey support

The reported operations covered different maintenance and inspection objectives. An underwater inspection can help a technical team understand visible condition before deciding what work to commission. Hull cleaning and propeller polishing address specific maintenance needs, while survey support must be arranged around the requirements of the intended examination.

Seachios® Marine Services coordinated these activities under its operational supervision. The approximately 46 operations represent the company’s reported activity through early September; the total is not a count of individual vessels or clients.

For an upcoming call, the useful starting point is the decision the work needs to support. Establish whether the priority is condition assessment, cleaning, polishing, or a scheduled survey. That distinction helps define the required access, evidence, and coordination before the vessel arrives.

Defining the scope below the waterline

A request for “underwater cleaning” should identify the areas involved. Hull surfaces, propellers, rudders, and sea chest intakes require different scope descriptions, and access to one area does not establish access to another.

Seachios’ wider underwater services in Brazil include hull and rudder cleaning, propeller polishing, and cleaning of accessible sea chest gratings and intake areas. Internal sea chest access requires separate assessment. Before-and-after imagery depends on visibility and operational access, while any performance improvement remains dependent on vessel condition.

When preparing an enquiry, identify whether accessible appendages and other niche areas should be included. A general hull-cleaning request can otherwise leave uncertainty over what the quotation covers.

Sharing available condition photographs or a previous inspection report can help communicate priorities. Identify what needs inspection, what needs cleaning, and which areas require particular attention, so the proposed scope can be assessed against the vessel’s available work window.

Environmental requirements and commercial diving rules

Seachios states that the reported activities strictly followed applicable Brazilian environmental requirements, including the relevant provisions of NORMAM-401/DPC.

This maritime authority standard addresses prevention of environmental pollution caused by vessels and platforms, including applicable biofouling requirements. Its role is distinct from NORMAM-222/DPC, which addresses commercial diving.

For buyers, both the activity and its location matter. An intended cleaning scope must be assessed against the requirements applicable at the proposed port, terminal, or anchorage. NORMAM-401/DPC should not be treated as permission to undertake any cleaning method at any location.

Confirming these conditions belongs in the planning stage, alongside vessel access and scheduling. A quotation request should therefore identify the actual work location as precisely as possible. If the berth or anchorage changes, the proposed arrangements may need reassessment.

This compliance statement reflects the company’s account of its operations during the reporting period.

What inspection records can establish

Seachios’ service documentation includes photo and video records organized by area, with observations limited to visible condition. These records support technical review; they do not establish hidden condition or independently prove regulatory compliance.

Define the intended recipient and purpose of the report before work begins. A superintendent reviewing maintenance needs may require a different scope from a surveyor conducting a formal examination.

Routine underwater visual inspection does not automatically qualify as an in-water survey or UWILD. Where an examination is intended to satisfy a survey requirement or replace a drydocking examination, applicability and acceptance depend on the vessel, agreed scope, and relevant class, flag, and survey requirements.

Seachios’ role is to provide the agreed operational and inspection support. Acceptance remains with the responsible surveyor or authority. Raising survey requirements at the enquiry stage helps establish what must be arranged before attendance, rather than leaving that question until after images have been collected.

Planning underwater work during a short port call

For a short call, send a defined request as early as the schedule allows. Include the expected arrival and departure, proposed work location, and the period actually available for underwater attendance. Identify any survey attendance that must be coordinated.

A useful request separates the essential scope from additional work you would like assessed. For example, state whether inspection is the immediate priority and whether cleaning is also requested, subject to feasibility and permissions. This gives the operations team a clearer basis for discussing what can be arranged.

Seachios advertises coverage at locations including Santos, Paranaguá, Rio de Janeiro, Vitória, Pecém, and Itaqui. These are service-coverage examples, not identified locations for the operations reported here. Availability requires confirmation for the individual call.

Treat schedule changes as operational information. An updated departure time or berth assignment can affect the proposed attendance, even when the requested service remains the same.

Why Seachios is pursuing more agile ROV technology

Seachios is working toward acquiring newer, more agile remotely operated vehicle (ROV) technology to support underwater work during short vessel calls.

The intended direction is practical: assess equipment that could improve inspection access, visual information gathering, and flexibility within available attendance windows. For operators managing tight schedules, those are relevant capabilities to evaluate.

The acquisition effort remains a future development. No equipment model, purchase completion, deployment date, or measured time saving is being announced in this update.

Future ROV inspection capability would need to be assessed against each task and its conditions. Suitability for visual inspection would not establish suitability for every cleaning activity or remove commercial diving and survey requirements. The operational question remains whether the proposed method can deliver the agreed scope and usable evidence within the applicable constraints.

Frequently asked questions

Can underwater services be arranged during a short port call in Brazil?

They can be considered, subject to the available window, location, permissions, access, and requested scope. Send the schedule early so feasibility can be assessed before attendance is committed.

Is an underwater inspection the same as UWILD?

No. A routine visual inspection records accessible condition. UWILD has a specific survey purpose and depends on the vessel’s eligibility and applicable class, flag, and acceptance requirements.

Can sea chest and rudder cleaning be included in the scope?

Yes, these services can be requested. Specify the areas involved. Accessible gratings and rudder surfaces should be distinguished from internal sea chest work, which requires separate assessment.

What information is needed for a free estimate?

Provide the vessel identity, location, schedule, requested work, and relevant technical information. If survey attendance is required, include that requirement in the initial enquiry.

Request underwater support for your next Brazil call

For underwater inspection, hull cleaning, propeller polishing, sea chest cleaning, rudder cleaning, or in-water survey and UWILD support in Brazil, request a free estimate or email operations@seachiosbrazil.com.

To help Seachios assess the request, include:

• Vessel name and International Maritime Organization (IMO) number.

• Brazilian port, terminal, or anchorage.

• Estimated time of arrival (ETA), estimated time of departure (ETD), and available work window.

• Required services and specific areas.

• Relevant vessel particulars and available condition information.

• Class or survey attendance requirements, where applicable.

These details give the operations team a practical basis for reviewing scope, availability, and quotation requirements.