Update: New EU CBAM Guidance Documents Released in August 2026

The Carbon Border Adjustment Mechanism (CBAM) officially entered its Definitive Period on 1 January 2026. Following three years of implementation during the Transitional Period, CBAM requirements and rules have continued to evolve with new proposals and revisions being introduced up to the present day.

In August 2026, the European Commission announced several regulatory updates and published a number of new guidance documents to help operators outside the European Union, as well as verifiers and other relevant bodies, comply with CBAM requirements.

📆 10 August 2026

🔍 Revised Default Values [Excel]

For non-EU installation operators

The European Commission published the revised Default Values in Excel format, following amendments introduced by Commission Implementing Regulation (EU) 2026/1740, published on 31 July 2026.

📆 14 August 2026

🔍 CBAM Guidance for Non-EU Installation Operators

For non-EU installation operators

The European Commission published 10 guidance documents, comprising four general guidance documents and six sector-specific guidance documents. These materials are intended to help installation operators outside the European Union understand and comply with CBAM requirements during the Definitive Period.

Must Read 🔗Guidance documents on CBAM implementation for installation operators outside the EU

📆 24 August 2026

🔍 Guidance on Verification and Accreditation under CBAM

For verifiers

The European Commission published new guidance on verification and accreditation under CBAM for verifiers and National Accreditation Bodies.

📆 28 August 2026

🔍 New Process for CBAM Verifiers to Access the CBAM Registry

For verifiers

The European Commission published a process for CBAM verifiers to access the CBAM Registry, which will apply from 1 September 2026 onward.

Key Points That Thai Operators Should Know about CBAM

1. In 2026, the transition to the Definitive Period marks a major turning point for industrial carbon management

The transition to the CBAM Definitive Period marks major turning point, directly linking carbon data management in Thai industry to the European Union’s mandatory carbon-pricing adjustment mechanism.

CBAM requirements for calculation, data monitoring, are more stringent and carry greater trade implications than carbon-footprint assessments under voluntary schemes. Operators should therefore view CBAM not merely as a reporting obligation, but as an integral part of carbon management across the organization and its supply chain.

2. Choosing between Actual Values and Default Values is not merely a compliance option; it is a business decision

Choosing between actual emission values (Actual Values) and EU-prescribed default values (Default Values) will become a business decision requiring consideration of several factors, including:

    • The expectations and requirements of EU trading partners
    • The producer’s readiness to manage and retain carbon data
    • The ability to obtain data from suppliers or upstream raw-material producers
    • The cost implications and burden associated with data verification
    • The impact of CBAM costs on product pricing and competitiveness

Accordingly, the choice between Actual Values and Default Values should not be based solely on which method can satisfy the regulatory requirements. Companies should assess which option is best suited to their cost structure, customer relationships, and competitiveness in the European market.

3. The scope of CBAM goods is likely to expand; operators not currently in scope should begin preparing

CBAM continues to be supplemented, revised, and developed. One direction under consideration is an expansion to downstream iron and steel products, such as machinery and equipment, automotive parts, washing machines, and furniture containing steel. The EU may also consider extending CBAM in the future to other industries or product groups linked to the EU ETS, including glass, plastics, and chemicals.

Such an expansion could broaden the impact of CBAM on producers, exporters, and suppliers in Thailand, even where a company’s products are not currently covered by CBAM.

Operators should therefore begin assessing product exposure, studying their greenhouse-gas emission profiles, preparing data-management systems, and closely monitoring regulatory developments so that they can adapt in time if the scope of CBAM goods is expanded in the future.

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