Accessibility links Skip to main content
A container ship sails past a port where logistics operations and renewable energy converge.

Clean Cargo Working Group (CCWG)

  • Ensure reliable CCWG emissions reporting with independent verification
  • Verify CO₂ and SOx data according to CCWG methodology and ISO standards
We offer this service in
  • France
  • India
  • Singapore

Request a quote

Fill out the form and we will contact you shortly.

Naam
Privacy Policy 

What is the CCWG?

The Clean Cargo Working Group (CCWG) is a global initiative within the shipping industry focused on transparent reporting of CO₂ and SOx emissions. Its goal is to provide a uniform methodology that allows carriers to measure, compare, and improve their emissions performance.

Since the 2017 data collection round (based on 2016 data), independent verification has been mandatory for participants. This verification ensures that the reported emissions data comply with the CCWG Carbon Emissions Accounting Methodology.

Normec Verifavia acts as an independent verifier in this process and checks whether emissions data have been correctly calculated, documented, and reported.

The current verification rules are set out in the Procedure and Guidance for Verifying the CO₂ and SOx Emissions Data Submission (v2.0). Verification must be conducted in accordance with ISO 14064-3, with a limited level of assurance.

Combining CCWG and EU MRV Verification

The CCWG verification audit can be conducted simultaneously with the EU MRV verification audit. This makes the verification process more efficient and prevents duplication of work.

During the audit, the following activities, among others, are performed:

  • Assessment of monitoring and reporting processes
  • Review of relevant IT systems
  • Interviews with key personnel
  • Analysis of emissions data
  • Verification of documentation and audit trails

The information collected supports both CCWG verification and EU MRV verification.

Key differences in verification requirements

CCWG

  • CCWG Carbon Emissions Accounting Methodology
  • ISO 14065 and ISO 14064-3
  • Verification of a sample of ships depending on fleet size

EU MRV

  • EU Regulation 2015/757 and delegated acts
  • Verification in accordance with EU MRV regulations
  • Full verification of one representative vessel

What is checked during a CCWG verification?

During a CCWG verification, various operational and emissions data are checked.

Examples of data checked include:

  • Fuel consumption
  • Number of reefer connections on board
  • Nominal TEU capacity
  • Annual energy consumption of reefers
  • CCWG utilization factor
  • Vessel operating days
  • Distance traveled
  • Emission factors and carbon conversion factors
  • SOx emissions
  • TEU conversion factors
  • Trade lane data
  • VSA and slot charter agreements

How Normec Verifavia Can Help You 

Normec Verifavia helps shipping lines and operators ensure their CCWG reporting is reliable and compliant.

Our services focus on:

Transparency and trust 
Independent verification demonstrates your organization’s commitment to reliable emissions reporting and transparency toward customers and stakeholders.

Benchmarking and improvement 
Standardized data collection makes it possible to compare performance with other CCWG members and identify opportunities for efficiency and reduction.

Competitive advantage 
Companies that transparently report emissions data strengthen their position as sustainable and reliable logistics partners.

What are the benefits for you?

  • Reliable and verified emissions data
  • Insight into your fleet’s emissions performance
  • Better comparability with other CCWG members
  • Strengthening of your sustainability strategy
  • Greater trust from customers and partners

Verification follows a structured audit process.

The CCWG verification process

  1. 1.

    Initial Review

    Analysis of carrier documentation and initial data checks within the Turnkey platform.

  2. 2.

    On-Site Audit

    Observation of reporting processes, interviews with key personnel, and random checks of vessel data.

  3. 3.

    Final Review & Report

    Evaluation of the final data and preparation of the verification report.

  4. 4.

    Verification & Certification

    Upon successful verification, the organization receives a CCWG verification certificate.

Would you like to learn more about a CCWG report?

Frequently Asked Questions

CCWG verification is a process by which an independent third party verifies that the greenhouse gas (GHG) emissions reported by an organization meet Clean Cargo Working Group standards.

This verification ensures that emission data is calculated and reported correctly and helps companies understand their progress toward emission reduction goals.

Participation in the Clean Cargo Working Group shows that an organization is proactively working on emissions reporting and emissions reduction within the shipping industry.

While CCWG membership does not guarantee direct regulatory benefits, participation does demonstrate transparency and responsibility in sustainability. This can positively impact relationships with customers, partners and regulators and contribute to future regulations and industry standards.