reporting tool

Data collection on your ships can be tedious and time consuming. Comply easily with maritime regulation requirements.
Switch to digital MRV DCS.

MRV DCS Template

EU MRV IMO DCS voyage report template

Fill in your email address to receive a MRV DCS calculation template tailored to your marine operations,
for free.


By submitting your email you agree with our policy


European Union (and UK) Monitor Report and Verify

Applicable to

Ships of more than 5,000 Gross Tonnage, calling any european ports fall under MRV.

Entered in force

1 July 2015, Regulation EU 2015/757


Yearly submission.
By 30th of April.

EU MRV (Monitor Report and Verify) is part of a European Union strategy for reducing CO2 emissions from shipping within its maritime borders with strong verification process for shipowners.


International Maritime Organisation Data Collection System

Applicable to

Ships with a Gross Tonnage of 5,000 or more, worldwide fall under DCS.

Came into force

1st March 2018, MARPOL Annex VI, Regulation 22A


Yearly submission.
By 31st of March

IMO DCS (Data Collection System) is part of IMO strategy to reduce shipping greenhouse gases emissions by tracking shipowners fuel consumption and emissions.

Streamlog - Timesheet for EU MRV and IMO DCS

The path for MRV DCS

A process to follow step by step.
A calculation you should automatize.

Continous reporting

Streamlog is a digital all-in-one reporting software dedicated to the maritime industry for recording continuously MRV and DCS data.

Verification & approbation

High quality data is easily controlled by your Accredited Verifier approved by the European Commission before the 30 April deadline. All digital.

Yearly submission

You can submit for each ship a verified Emission Report via THETIS-MRV and GISIS DCS in minutes.

Simplify verification
Data quality management
Verifavia certified

Compliance & monitoring

Energy efficiency for greener operations.

Internal transparency

Take the power over data report and improve communication between crews and shore collaborators.

Custom insights

Ensuring mandatory compliance is the first step : leverage data to sustainably monitor your fleet 360° on fuel consumption and more.

High-end technology

Secure your data communication and enjoy the use of a technology enabling agility and MRV & DCS up to date.

Return On Investment
Secured and easy to use
Verifavia certified
Marinsights - Gas Emission (UI Baby).png

Opsealog is trusted

Do you need example ? See what our partners say about us

5 / 5

We are confident that Opsealog’s digital solutions will facilitate the transition for environmentally-minded maritime pioneers.

Antidia Citores - Program Manager at Green Marine Europe
5 / 5

The pertinent analysis from Opsealog enabled us to take suitable decisions, resulting in a considerable reduction in our overall fuel usage.

Cpt Mohamed Al Ali - Senior VP at ADNOC Logistics & Services
5 / 5

We are proud to partner with Opsealog on this journey that will support the offshore oil and gas sector as it moves towards sustainability.

Dr. Urban Siller - CEO at Identec Solutions

Ready to get started?

Contact our marine experts.

Frequently asked questions

about EU MRV and IMO DCS reporting.

Discover Streamlog

The path toward maritime digitalization