The European Union’s Carbon Border Adjustment Mechanism (CBAM) is creating demand for specialised industrial verification services across international supply chains. As accredited verification organisations prepare to assess emissions from factories and electricity producers worldwide, qualified local engineers could become valuable technical partners.
The work extends beyond reviewing carbon calculations. Verification teams need to understand how emissions arise in steelworks, aluminium plants, cement factories and power stations, how production processes are measured, and how operational records support reported emissions figures.
This can require process engineers, electrical specialists, metering experts, environmental professionals and industrial automation specialists who understand the equipment and operating practices at facilities thousands of kilometres from a verifier’s main office.
For engineering companies in the Western Balkans, Türkiye, Ukraine and other non-EU manufacturing markets, this creates a potential route into a specialised international services market. However, participation depends on clear regulatory boundaries: local experts may support accredited verification organisations, but they do not acquire accreditation through that relationship. The accredited verifier retains responsibility for the verification process and report, while conflicts arising from previous consultancy work can restrict participation.
From emissions reporting to independent industrial assurance
The definitive CBAM regime began in January 2026, with annual declarations covering imports during that year due by 30 September 2027. Where actual embedded emissions are declared, the information must undergo verification by an appropriately accredited CBAM verifier.
The European Commission’s implementation timetable provides for accredited verifiers to issue reports through the CBAM Registry from January 2027, following completion of the relevant reporting period and verification procedures.
This creates a substantial operational task for the verification industry. Operators must prepare emissions information under the prescribed methodology, while verifiers must examine the evidence, assess material risks, identify relevant inaccuracies and reach a defensible conclusion.
The scale of the underlying trade is significant. In its assessment of the transitional CBAM regime, the Commission estimated 167 million tonnes of CO₂-equivalent emissions associated with reported covered-goods imports during 2024. Iron and steel accounted for approximately 102.5 million tonnes, aluminium for 38.4 million tonnes, fertilisers for 18 million tonnes and cement for 8 million tonnes.
The Commission also reported that the proportion of submissions using actual emissions values rose from approximately 8% in Q4 2023 to 53% in Q2 2025. These figures relate to transitional reporting, rather than the definitive accredited-verification system, but illustrate the scale of the information challenge and the growing use of actual emissions data.
Reporting actual values does not, by itself, mean those values have been independently verified. Formal verification requires a structured assurance process that can be examined by accreditation bodies and, where necessary, competent authorities reviewing CBAM declarations.
The assignment therefore extends beyond checking a spreadsheet. It must establish whether the installation’s processes, monitoring procedures and underlying records support the reported emissions.
Accreditation defines the market
The principal regulatory framework includes Regulation (EU) 2023/956, Commission Implementing Regulation (EU) 2025/2546 on verification principles, and Commission Delegated Regulation (EU) 2025/2551 on accreditation and verification requirements.
The accreditation framework draws on standards including EN ISO/IEC 17029 and EN ISO 14065, alongside additional CBAM-specific requirements. Verification organisations must demonstrate the competence, procedures, independence and management systems needed for their assigned activities.
Accreditation is granted through EU national accreditation bodies and applies to defined groups of CBAM activities. Qualification to verify one industrial category does not automatically authorise an organisation to assess every other sector, because steelmaking, aluminium production and electricity generation present different emissions sources and technical risks.
Existing EU Emissions Trading System verification experience provides a foundation for entering the CBAM market, and the legislation allows relevant accreditation extensions. However, EU ETS accreditation does not automatically confer unrestricted CBAM verification authority.
The framework also allows legal entities established outside the EU to seek accreditation from an EU national accreditation body, subject to the applicable requirements. This potentially broadens the market beyond traditional EU-based assurance organisations.
For providers operating across several countries and industrial sectors, building the required technical capability could become a major commercial and operational challenge. Local engineers can help meet that need, provided they work within the verifier’s approved arrangements.
Site verification requires industrial expertise
CBAM verification is not limited to checking whether figures have been entered correctly. The verifier must assess compliance with the applicable monitoring methodology and determine whether the underlying evidence supports the emissions report.
The process begins with an understanding of the installation, including production routes, emission sources, relevant inputs, monitoring procedures, metering equipment and information-management systems.
Verification is risk-based. The team identifies where errors or non-conformities are most likely and determines the testing required to obtain reasonable assurance.
Under Implementing Regulation (EU) 2025/2546, the prescribed quantitative materiality levels include 5% for specific embedded emissions and 5% for the applicable specific embedded free allocation, assessed at the relevant goods level. These thresholds are not general permission for smaller inaccuracies: verifiers must also consider whether individual errors, combined deficiencies or qualitative weaknesses are material.
Local specialists can provide particularly useful technical knowledge during these investigations.
- Steel: Verification may involve fuel consumption, process gases, precursor inputs, production yields and the allocation of emissions across products.
- Aluminium: The work can involve process-specific emissions calculations, consumption records, precursor information and measurement reliability.
- Electricity: The assessment may depend on generation data, fuel and emissions records, operating conditions and evidence required by the applicable electricity methodology.
A process engineer might identify that reported production does not correspond to the relevant measurement point. An electrical engineer could recognise that two meters represent different boundaries, while an automation specialist might establish whether historical records can be reproduced from the original control system and changes to datasets traced.
The accredited verifier must independently evaluate the evidence and decide its significance. Local experts contribute technical competence; they do not replace the verifier’s judgement.
Physical site visits make local expertise relevant
Under the current verification rules, the initial installation assessment generally requires a physical site visit. A virtual visit may replace it in serious, extraordinary and unforeseeable circumstances where the legal conditions are met.
For subsequent reporting periods, virtual visits or waivers may be possible under prescribed conditions, including previous physical visits, appropriate risk assessments and the absence of significant changes. Special provisions also apply to certain zero-emissions electricity installations.
These exceptions do not remove the physical-verification requirements for the first compliance cycle. Nor can an inspection previously performed by a supplier’s consultant automatically replace a visit required of the accredited verifier.
For international organisations, the practical challenge includes travel, staffing, site access, interviews and document review across several countries. Industrial familiarisation can take considerable time, especially at installations with multiple production processes or incomplete documentation.
Local experts may reduce these burdens through knowledge of industrial systems, language, operating practices and technical records. They can help verification teams understand process configurations and specialist equipment or contribute to authorised testing within the verifier’s management framework.
However, their responsibilities must be clearly defined. A local engineer cannot independently approve an emissions report, decide that verification is complete or issue the formal report outside the legally authorised arrangements.
Two routes for engaging local specialists
The European Commission’s August 2026 guidance on CBAM verification and accreditation identifies two arrangements relevant to local technical experts.
The first is to engage individual technical experts as members of the verification organisation’s team. A verifier may contract a suitably qualified person to provide specialist knowledge. Where the individual is incorporated into the verifier’s management system under the relevant contractual arrangement, the engagement is not treated as outsourcing to another organisation.
The verifier remains responsible for establishing competence, supervising the expert, reviewing the work and safeguarding independence. This model can suit narrowly defined requirements, such as expertise in high-voltage metering, process-gas measurement or steel-production mass balances.
Rather than maintaining permanent employees in every technical discipline and country, a verifier could engage qualified experts for particular assignments.
The second route is outsourcing certain verification activities to an external organisation. Section 1.7.4 of Annex II to Regulation (EU) 2025/2551 permits outsourcing within defined limits. The accredited verifier must retain full responsibility and obtain sufficient evidence that the external organisation meets the applicable competence, independence and impartiality requirements.
A documented and enforceable agreement is required, together with the operator’s consent. The independent review, and the drafting and issuing of the verification report, cannot be outsourced. These functions remain within the accredited verifier’s responsibility and organisational framework.
The distinction affects contract design, supervision and accreditation oversight. Neither arrangement grants a local participant the right to market itself as an accredited CBAM verifier solely because it provides services to one.
Engineering companies can therefore consider several different business models: supplying qualified personnel to established verification organisations, building the procedures and safeguards needed to become an acceptable technical services provider, or pursuing their own accreditation to operate as principal CBAM verifiers.
These options carry different costs, responsibilities and compliance obligations.
Impartiality may be the biggest barrier
Technical competence alone may not determine which local engineering companies can participate in verification. Independence and impartiality can be equally important.
A company that has helped an industrial operator develop its emissions-monitoring methodology or reporting system cannot assume it may also participate in independently verifying that work.
The CBAM accreditation framework addresses potential conflicts involving consultancy, technical assistance, shared personnel, common ownership, governance, finances and other organisational relationships. A verifier must remain independent of the operator and avoid circumstances that compromise objectivity.
This creates a challenge for engineering companies offering multiple services. A firm may already have a contract to install monitoring equipment, configure meters or prepare a plant’s CBAM emissions documentation. Although those services may be commercially valuable, they can make the company unsuitable for participating in verification of the same installation.
Similar concerns can arise where a verifier and a consulting company share ownership, management, staff, resources or financial arrangements that compromise independence. Separating personnel internally does not automatically eliminate every conflict.
The Commission’s August 2026 guidance discusses safeguards such as conflict assessments, staff separation, independent oversight and exclusion periods for personnel with relevant consultancy histories. It also describes good-practice safeguards involving periods of at least two years in appropriate cases. These should not be interpreted as a universal safe harbour overriding specific conflict-of-interest prohibitions.
Local engineering companies may therefore need to choose between two strategically distinct service lines:
- Supplier-side services: monitoring-system development, emissions-data preparation, technical due diligence and verification readiness.
- Verifier-side services: independent technical expertise or permitted verification support under an accredited organisation’s procedures.
Both can be commercially attractive, but serving both sides of the same installation without adequate structural safeguards may be incompatible with the regulatory requirements.
For companies seeking recurring work from accredited verifiers, impartiality must be treated as a core operational capability rather than an administrative formality.
Regional engineering networks could improve efficiency
International verification organisations must balance the cost of maintaining permanent staff against the flexibility of engaging external specialists. CBAM adds a geographical dimension because verification assignments may involve installations across several non-EU countries with different technical standards, languages, equipment suppliers and documentation practices.
A qualified regional network could provide access to site-specific knowledge and specialist skills while reducing some travel and familiarisation requirements. However, these benefits must be weighed against the costs of training, oversight, quality control, confidentiality and accreditation compliance.
A poorly supervised subcontracting model could become more expensive if it creates additional testing, corrective actions or accreditation concerns.
The more promising approach is likely to involve technically qualified people and organisations working under documented procedures, with demonstrable competence, conflict-of-interest controls and clearly defined responsibilities.
Commercial arrangements could include project-based contracts for individual experts, recurring specialist assignments or framework agreements covering defined technical services. Contracts would need to distinguish among site inspections, specialist assessments, documentary reviews, evidence gathering and other authorised tasks.
There is no single EU-prescribed commercial tariff for these services. Pricing would depend on installation complexity, sector, location, specialist competence and the responsibilities assigned under the verification engagement.
For regional engineering companies, access to recurring assignments could be more valuable than one-off documentation work, although maintaining the necessary competence and independence would require continued investment.
The Western Balkans offer a potential engineering base
Serbia and the wider Western Balkans have industrial facilities in steel, metals, electricity generation, cement and other energy-intensive sectors supplying EU markets. The region also has engineering companies experienced in industrial construction, commissioning, technical supervision, automation, energy systems and environmental compliance.
These capabilities are relevant to verification work. Local specialists may understand a Serbian steel installation’s technological configuration and records, or the relationship between generation meters, plant control systems and operating data at a power station in Serbia or Montenegro.
Geographical proximity to EU markets may also be useful for verification organisations operating across central and southeastern Europe.
This does not establish that a particular number of contracts has already been awarded to regional engineering companies. It indicates a potential market whose actual size will depend on the number of operators seeking verification of actual emissions, the availability of accredited verifiers and the commercial models those organisations adopt.
The opportunity may extend beyond the Western Balkans. Regional engineering firms with demonstrable CBAM expertise could support assignments in other markets with comparable industrial processes. The decisive factors would be their technical capability, personnel qualifications, documented procedures and independence—not simply their location.
Electricity verification requires a distinct skill set
Electricity illustrates the overlap between industrial verification and energy-market expertise. For electricity imported into the EU, actual-emissions claims may depend on more than the generating plant’s measured emissions. Supporting evidence can also involve the electricity purchase agreement, the generator’s technical characteristics, network conditions and the relationship between generation and cross-border transmission.
Under the applicable methodology, certain evidence must demonstrate qualifying generation, relevant contractual relationships, interconnector nominations and hourly consistency between production and transmission capacity.
This places electricity verification at the intersection of power engineering, electricity trading and regulatory compliance.
An environmental auditor may be experienced in emissions factors but less familiar with electricity nominations, cross-border trading documentation or SCADA and metering systems. A power-market specialist may understand transmission arrangements without having the competence required for formal emissions verification.
Accredited verifiers need an appropriate combination of expertise. This could increase demand for specialists capable of examining electrical infrastructure and supporting evidence across several markets.
Southeastern Europe is relevant because its interconnected electricity systems include thermal generation, hydropower, wind, solar and cross-border trading through multiple market platforms. Careful evidence assessment is especially important when a declarant seeks to establish the emissions associated with a particular eligible generating installation rather than rely on broader default values.
A renewable power purchase agreement does not resolve every verification issue. The verifier must assess whether the specific claim meets CBAM requirements, including the relevant contractual and physical relationship between the producer, any intermediary and the authorised declarant.
Local electricity engineers can contribute to that assessment within the verifier’s procedures, but cannot independently certify that a transaction qualifies for actual-emissions treatment merely because it appears commercially reasonable.
Industrial assurance and digital evidence management
The emerging market could involve several professional services sectors. Established environmental verification organisations may expand geographically; testing, inspection and certification groups may develop CBAM capabilities; and industrial engineering consultancies may establish supplier-readiness services or specialist teams supporting accredited verifiers.
Professional firms advising EU importers on customs compliance, carbon accounting and procurement may also partner with engineers able to examine operational data at foreign installations.
Digital data-management providers could contribute by helping installations maintain traceable production and emissions records. Evidence registers, controlled document repositories and connections to plant monitoring systems may make supporting information easier to retrieve during verification.
Digitalisation cannot replace professional judgement or reliable industrial evidence. A sophisticated dashboard can reproduce an incorrect emissions figure consistently. The verifier must still establish whether the underlying measurement, calculation and allocation are valid.
Independent technical competence therefore remains commercially important, even as reporting systems improve.
Accreditation oversight will shape the market
National accreditation bodies assess verifier competence and operations under Regulation (EU) 2025/2551 and conduct ongoing surveillance. Their oversight can include reviewing whether external technical resources are properly managed and whether outsourced activities comply with applicable requirements. Accreditation bodies may also assess relevant activities at outsourced organisations’ premises.
Verification providers cannot treat subcontracting as an unregulated extension of their business. Personnel competence, impartiality assessments, procedures, documentation and supervision must all be demonstrable.
The regulations also include rotation requirements for lead auditors who verify the same installation over specified consecutive annual cycles, with a three-year break required after the relevant five-year sequence. This creates a need for verification organisations to maintain more than one competent individual for recurring assignments.
Wider technical networks may help address capacity constraints, but verifiers must continue to meet legal requirements for competence and independence.
The competitive advantage is likely to lie in dependable professional capacity, not simply in the availability of local engineers. Companies able to deliver technically sound, well-documented work under an accredited verifier’s management system may be better positioned than general consultancies without clearly defined responsibilities.
Verification becomes part of industrial market access
The development of the CBAM verification services market will depend on decisions by non-EU operators and their European customers.
Operators seeking to provide actual verified emissions must maintain suitable monitoring arrangements and engage an accredited verifier. Suppliers unable or unwilling to provide the required information may leave their EU customers relying on default values, with financial consequences determined by the applicable CBAM calculation.
For importers, verified emissions data can inform procurement and comparisons between supply contracts. For producers, verification readiness increasingly supports long-term commercial relationships. For accredited verification organisations, it creates demand for specialists able to assess complex industrial evidence across international markets.
For local engineering companies, it offers a potential route into technical assurance, provided they choose their client relationships and independence arrangements carefully.
The first verification cycle will test the availability of competent personnel, the quality of industrial data and cooperation between operators and accredited verification bodies. It will also help establish which services are genuinely needed and which can be addressed through improved monitoring systems and standardised documentation.
CBAM has linked international trade compliance to technical assessments conducted inside foreign production facilities. The accredited verifier remains responsible for the independent conclusion, but its ability to complete the work efficiently may increasingly depend on engineers who understand the factory, the equipment and the evidence behind every reported tonne of emissions.
