Global Sulphur Cap 2020

With its long-standing maritime expertise in regulatory affairs, operational experience and technical innovation, DNV is prepared to support our customers to overcome the 2020 challenge.

Approval services

Based on decades of experience, DNV has developed several class notations to support the switch to low-sulphur fuels, preparing ship owners for lower sulphur limits and more:

  • Emission Reduction (ER) notation, including a new notation for exhaust gas cleaning systems (EGCS) to cover scrubbers
  • Scrubber Ready notation
  • Gas Fuelled notation
  • Gas Ready notation
  • Low Flashpoint Liquid (LFL) Fuelled notation, to cover methanol as fuel, and other fuels with a low flashpoint

Advisory services

DNV Maritime Advisory is separated from class activities and supports customers with a variety of services to make the right technological and financial decisions for global sulphur cap compliance:

  • Fuel changeover calculator
  • Scrubber services (PDF), eg. feasibility studies and scrubber water discharge assessment
  • Control system software testing
  • Alternative fuel and technology decision support
For more information, please visit our environmental technology and alternative fuels service page.

Inspection services

DNV’s ENVILAB provides state-of-the-art exhaust gas emission measurements directly on site, whenever and wherever needed. Our exhaust gas emission measurements cover:

  • Test-bed and on-board measurements according to the IMO MARPOL NOX Technical Code 2008, RVIR Guideline 16 and 97/68 EG for diesel engines (off-road applications)
  • Gaseous components, incl. NOX, CO, CO2, O2, HCs, NMHC and SOX
  • Pollutant particle emissions such as particulate matter (PM), opacity or smoke number (FSN)

For exhaust gas measurements, please email us at ENVILAB


On demand: Alternative Fuels Online Conference (15 Oct 2020)

Access 7 expert presentations and watch the video recordings


GUIDANCE PACKAGE: Global Sulphur Cap 2020

Download our guidance documents including scrubbers, fuel switch options, checklists and more



Recommended Practice: Witnessing of low sulphur fuel changeover and operations


Alternative fuels and technologies

Topic page including emission categories, prices, availability and services


Environmental technology and alternative fuels advisory service

Service overview


Maritime academy course

Low Sulphur Fuel - Compliance with 2020 requirements