The expansion of the European Union’s Carbon Border Adjustment Mechanism (CBAM) is creating demand for technical specialists capable of examining emissions evidence at industrial facilities worldwide. As accredited verification organisations prepare to assess steelworks, aluminium producers, electricity generators and other installations outside the EU, local engineering companies could become important partners in delivering the required technical work.
The opportunity extends beyond conventional environmental auditing. Verification requires evidence that reported emissions correspond to industrial processes, monitoring systems, production records and measured energy and material flows. For international assurance providers, this creates operational demands involving technical competence, staffing, geographical coverage and access to installations.
Engineering companies in Serbia, Montenegro and other non-EU markets could supply some of this expertise. Their participation, however, depends on the distinction between technical assistance and formal independent verification, as well as compliance with accreditation, competence and impartiality requirements.
The definitive CBAM regime establishes a new verification market
CBAM entered its definitive phase on 1 January 2026, establishing carbon-related obligations for specified imports linked to the EU Emissions Trading System (EU ETS). The mechanism covers six groups of goods: iron and steel, aluminium, cement, fertilisers, hydrogen and electricity.
Where importers use actual embedded emissions, the relevant emissions information must undergo independent verification by an appropriately accredited body. Because many covered goods originate at installations outside the EU, the verification process requires international cooperation between foreign producers, assurance organisations and authorised declarants within the Union.
The European Commission’s implementation timetable envisages verification activities beginning in September 2026, including documentary assessments and installation visits. Accredited verifiers can issue the first formal reports through the CBAM Registry from January 2027, enabling operators to provide verified actual-emissions information to authorised declarants.
The first annual declarations covering 2026 imports are due by 30 September 2027. Meeting this timetable requires installation operators to prepare annual emissions reports, verification bodies to complete technical assessments and EU declarants to obtain the necessary verified information before finalising their declarations.
Responsibilities remain divided between the parties. The installation operator generates monitoring information, the accredited verifier independently assesses that information, and the authorised declarant uses the verified data in its declaration in accordance with applicable CBAM requirements.
No single participant necessarily controls the entire process. Coordination becomes particularly important where installations involve complex production technologies, several manufacturing stages or multiple sources of emissions information.
Verification requires evidence from industrial operations
CBAM verification involves more than reviewing administrative records or checking emissions calculations in a spreadsheet. The verifier must establish whether the reported figures are supported by appropriate monitoring methods and evidence reflecting the physical operation of the installation.
This requires an understanding of the processes generating emissions, the locations and functions of measurement systems, and the methods used to allocate emissions to individual goods. The technical requirements vary by industry and installation.
At a steelworks, an assessment may involve process fuels, production routes, purchased precursors, material balances and the relationship between intermediate and finished products. For aluminium installations, the work may cover process-specific emissions, fuel consumption, production volumes and the allocation of emissions between relevant goods.
Power-generation facilities present another combination of requirements, including fuel records, operating data, generation metering and the technical evidence used to establish emissions associated with electricity production.
Errors can arise even when individual instruments appear to function correctly. An incorrectly defined measurement boundary can produce inaccurate emissions values, while a faulty material balance can distort the allocation of emissions between products. Changes to monitoring procedures that are not properly documented can undermine the traceability of historical information.
An installation may also maintain reliable aggregate production records without possessing sufficient evidence for a particular product-level calculation.
These problems require industrial engineering knowledge alongside emissions-accounting expertise. Specialist engineers can help verification teams understand equipment, production processes and operational records, while the accredited verifier retains responsibility for deciding whether the evidence is sufficient and reliable.
Accreditation defines the scope of permissible verification work
The principal legal framework includes Regulation (EU) 2023/956, Commission Implementing Regulation (EU) 2025/2546 and Commission Delegated Regulation (EU) 2025/2551. The delegated regulation establishes requirements concerning accreditation, verifier competence, impartiality, oversight and the use of external technical resources.
The framework draws on established conformity-assessment principles, including EN ISO/IEC 17029, while introducing requirements specific to CBAM.
Accreditation must be granted by a competent EU national accreditation body for the relevant activity scope. The necessary competence varies between regulated activities, including different categories of primary steel production, downstream steel products, aluminium production and electricity.
A verification organisation qualified to assess cement installations cannot automatically assume it has the technical competence required for electricity-import verification or complex metallurgical processes.
Existing EU ETS verification organisations can apply to extend their accreditation scopes to cover relevant CBAM activities. This offers an established route into the market but does not remove the requirement to demonstrate sector-specific competence.
The regulatory framework also permits legal entities established outside the EU to seek accreditation from eligible EU national accreditation bodies. This could support international verification providers operating closer to major production markets outside the Union.
Accreditation nevertheless requires more than industrial experience. A verification body must demonstrate appropriate personnel, procedures, quality management, professional competence, independence and control over verification activities. It must also maintain documentation for oversight by the relevant accreditation body.
These requirements become especially important when an assignment involves external experts or subcontractors.
Local engineers provide access to specialised industrial knowledge
International verification organisations need personnel who can combine knowledge of regulatory requirements with the ability to assess industrial data and production systems. Maintaining permanent teams covering every relevant technology in every exporting country may be economically inefficient.
A verification organisation headquartered in western Europe, for example, may need specialised knowledge of a Serbian steelworks, a Turkish aluminium facility or a power station in the Western Balkans. Although verification methods are harmonised at EU level, installations differ in technology, age, instrumentation and operating practices.
Local engineers can contribute knowledge of equipment, production systems, plant records and operating conditions. Their presence can also facilitate communication with installation personnel and access to technical information.
A steel verification assignment may require an engineer familiar with furnace operations, process-gas measurement or material accounting. Electricity-related work may call for expertise in generator metering, control systems, transmission nominations or power-market arrangements. An aluminium installation may require specialists familiar with production routes, process measurements and precursor calculations.
The value of local participation lies in combining this technical knowledge with the accredited organisation’s verification methodology. Regional specialists could support selected assignments, reduce avoidable travel and provide skills needed only for particular installations or technologies.
These potential efficiencies do not relax verification standards. External specialists must meet the competence and independence requirements applicable to their tasks, and the accredited verifier remains responsible for the quality of the work and the resulting conclusions.
EU rules distinguish technical experts from outsourced verification activities
The EU accreditation framework provides two principal routes for accredited verifiers to access additional technical expertise.
The first involves engaging individual technical experts to support the verification team. Under Annex II of Regulation (EU) 2025/2551, technical experts can provide specialised knowledge required by CBAM auditors or independent reviewers. They perform specified tasks under the direction and full responsibility of the appropriate members of the verification organisation.
An expert could assess the technical characteristics of a metering system, explain an industrial process or examine evidence concerning a particular production technology. The findings become part of the verification process, but the expert does not independently issue the verification opinion.
This model may be appropriate when an accredited verifier needs additional expertise for a limited technical subject or a particular installation.
The second route involves outsourcing permitted verification activities to another organisation. Section 1.7.4 of Annex II to Regulation (EU) 2025/2551 permits outsourcing subject to specific conditions.
The accredited verifier must retain full responsibility for the verification and the resulting report. It must establish that the external organisation satisfies the applicable independence and impartiality requirements, document the arrangement through an appropriate agreement and obtain the operator’s consent.
Crucially, the accredited verifier cannot outsource the independent review or the drafting and issuing of the verification report. These restrictions preserve the accredited organisation’s responsibility for the final assurance conclusion.
For engineering companies, the distinction determines the nature of the commercial relationship. Providing an individual expert under a verifier’s management system is different from operating as an external organisation performing defined outsourced activities. The two models involve different contractual arrangements, competence assessments and controls.
Neither arrangement allows an engineering company to represent itself as an accredited CBAM verifier without obtaining the appropriate accreditation.
Physical site visits create demand for regional technical networks
Installation visits are an important element of the verification regime. Under the current rules, a first-period verification normally involves a physical site visit by the accredited verification team. Virtual visits and waivers are available only under prescribed conditions.
These provisions reflect the importance of examining installations and supporting evidence directly. Verification organisations working across multiple countries must coordinate travel, site access, technical interviews and inspections while maintaining consistent procedures and appropriate supervision.
The logistical challenge grows when installations are geographically dispersed or involve technologies requiring specialist knowledge. A verification body assessing steel, aluminium and electricity facilities may need several categories of engineers, making permanent staffing in every country potentially expensive.
A regional network of qualified technical specialists could provide a more flexible arrangement. Individual engineers and specialist companies could support assignments in defined territories under the accredited verifier’s procedures and control.
For organisations covering south-eastern Europe, Serbia and neighbouring markets could provide a practical base for technical services. Regional teams could potentially support installations in Serbia, Montenegro, Bosnia and Herzegovina, North Macedonia and Albania, as well as nearby industrial markets.
Geographical proximity alone, however, does not establish the required competence. The verifier must assess technical knowledge, familiarity with verification procedures and potential conflicts of interest. The objective is reliable access to qualified professionals, not simply lower-cost staffing.
Independence rules limit the combination of consulting and verification
Impartiality is a central constraint on the emerging market because engineering companies may already provide services to operators whose emissions reports require verification.
An engineering firm could help configure a monitoring system, prepare emissions calculations, develop reporting procedures or advise a supplier on CBAM compliance. Participating in the independent verification of the same work may create a conflict of interest.
The accreditation framework addresses relationships involving consultancy, technical assistance, common ownership, shared management, personnel, financial interests and other circumstances that could compromise independence. Verification organisations must assess these risks before accepting assignments or engaging external personnel.
The distinction between supplier-side assistance and verifier-side technical support is fundamental. A supplier’s engineering adviser works to improve the operator’s monitoring arrangements and documentation. A verifier-side expert contributes to the independent assurance process under the accredited organisation’s supervision and responsibilities.
Separating employees within a closely connected organisation does not necessarily eliminate a conflict. The assessment must consider wider legal, financial and organisational relationships.
Engineering companies seeking both consulting and verification-support work may therefore need to determine which activities they can perform without compromising independence. They could specialise in technical assistance for operators and importers or develop a separate capability suitable for verifier engagements, subject to the applicable rules.
For companies pursuing both markets, effective conflict screening and documented compliance procedures are essential. Commercial opportunities depend not only on technical expertise but also on the ability to operate within a professional assurance framework.
Steel verification requires expertise across production routes
The industrial structure of the Western Balkans makes the region relevant to the developing verification market. Steel production and processing involve different technologies, material flows and emissions characteristics.
Integrated steelworks and electric arc furnace operations may require different technical assessments. For verification organisations examining a Serbian steel producer’s emissions report, local metallurgical expertise could help establish how process boundaries, material inputs, energy balances and production stages relate to the reported figures.
Downstream processing presents additional challenges because finished products may incorporate purchased precursors carrying emissions information from upstream installations. Verification must consider whether the relevant precursor information and calculation methods comply with CBAM requirements.
This creates several potential sources of error across the supply chain, particularly where production and processing take place at separate facilities.
Aluminium presents a similar need for specialised knowledge, although its production technologies and emissions sources differ. Smelting, casting, recycling and downstream processing may involve distinct monitoring systems and calculation boundaries.
Verification organisations may therefore require engineers capable of examining process equipment, energy consumption, intermediate materials and emissions allocation. Such expertise can be particularly valuable when the verification team has broad emissions-accounting competence but limited experience with a specific production technology.
External specialists can contribute the required industrial understanding while leaving the final verification opinion with the accredited body.
Electricity verification combines engineering and market expertise
Electricity may become one of the most technically specialised areas of CBAM verification because it involves interconnected systems of generators, network operators, suppliers, traders and cross-border capacity arrangements.
Where actual electricity emissions are claimed, the supporting evidence may extend beyond the generating installation’s emissions calculations. It can involve contractual relationships, generating-unit characteristics, metering systems, network conditions and hourly transmission arrangements.
Qualifying power purchase agreements and the relationship between physical generation and electricity imported into the EU are particularly relevant. Verification organisations must therefore combine knowledge of power-system engineering with an understanding of electricity-market operations.
An electrical engineer may examine generation-meter records, control-system data and metering-point configurations. A power-market specialist may assess how transmission nominations and contractual delivery evidence relate to the generating installation and authorised declarant. An environmental verification specialist may examine emissions monitoring and calculation methods.
These are distinct areas of competence that must be brought together without confusing commercial electricity tracking with the evidence required under CBAM.
South-eastern Europe is relevant because its electricity markets are interconnected and its generation portfolios include thermal power, hydropower, wind and solar. Cross-border transactions may involve several commercial parties and transmission arrangements.
An electricity transaction that complies with energy-market rules does not automatically qualify for actual-emissions treatment under CBAM. The accredited verifier must assess the evidence against the applicable methodology. Local engineering specialists can support that assessment, but cannot replace missing contractual or physical conditions with technical documentation.
For verification organisations expanding into electricity, access to specialists experienced in power plants, substations, SCADA systems, metering and transmission interfaces could become an important capability.
External technical resources change verification staffing economics
The business model for CBAM verification may encourage accredited organisations to combine permanent audit teams with external specialists.
Permanent employees provide continuity, procedural control and institutional knowledge. External experts offer flexibility across different industries, technologies and countries. The appropriate balance depends on assignment volumes, geographical distribution, industrial complexity and the verifier’s accreditation scope.
An organisation handling recurring assignments for similar installations may justify maintaining permanent sector specialists. A verifier working across a wider range of technologies may find it more efficient to engage experts for defined tasks.
Local specialists could be contracted for site investigations, technical assessments or permitted verification activities. Commercial arrangements might include individual project contracts, framework agreements or recurring access to an approved pool of experts.
CBAM does not prescribe a universal pricing model for these arrangements. Commercial terms would need to reflect competence, assignment complexity, professional responsibilities, independence requirements and the time needed to complete the work.
Potential savings must also be weighed against the obligations associated with external resources. Accredited verifiers must assess competence, supervise personnel, retain records and ensure that externally performed work meets the same quality standards as internal work.
Poorly controlled outsourcing may increase costs rather than reduce them. Incomplete technical assessments can lead to additional visits, expanded testing or corrective actions. Weak documentation can create difficulties during independent review or accreditation surveillance.
The most valuable engineering providers will consequently be those able to deliver technically sound, well-documented work within the verifier’s established procedures.
Accreditation bodies maintain oversight of external resources
The market is governed not only by initial accreditation but also by continuing oversight. EU national accreditation bodies assess and monitor accredited verifiers, including their technical competence, organisational arrangements and compliance with accreditation requirements.
Where activities are outsourced, accreditation bodies may also examine relevant arrangements and activities at the external organisation’s premises. This reinforces the accredited verifier’s obligation to maintain control over outside resources.
Local engineering companies seeking recurring work with international verifiers may therefore need management systems and documentation practices comparable to those used in established assurance organisations.
Relevant capabilities include personnel competence records, confidentiality procedures, conflict-of-interest declarations, technical working papers and controlled document management. An engineering company may have strong industrial expertise but lack these organisational arrangements.
Developing such systems could become an important investment for firms seeking entry into the verification-support market.
Professional training is also necessary. Knowledge of industrial processes alone is insufficient: technical experts must understand their responsibilities within the verification process, including evidence quality, materiality, sampling and documented professional judgement.
For regional engineering companies, systematic development of these capabilities may determine whether they can establish recurring relationships with accredited international organisations.
Distinct professional services are developing around CBAM
The regulatory framework creates demand for several related but legally separate services.
The first is supplier-side consulting and verification readiness, helping non-EU operators establish monitoring procedures, prepare emissions information and identify technical deficiencies before independent assessment.
The second is technical assurance for EU importers and authorised declarants, involving supplier-readiness assessments, coordination of documentation and reporting of potential compliance risks to European customers.
The third is technical support for accredited verification organisations, where external experts contribute specialist knowledge or perform permitted activities under the required supervision and impartiality safeguards.
The fourth is formal accredited verification, carried out by organisations holding the required accreditation and retaining full responsibility for their reports.
These services may encourage cooperation between engineering consultancies, environmental assurance providers, industrial data specialists and established testing and certification organisations.
Digital monitoring and evidence-management technologies could also support the process. Facilities with reliable electronic records, calibrated instruments and controlled reporting procedures may be better positioned to provide evidence efficiently than installations relying on fragmented manual spreadsheets.
Digitalisation does not remove the need for technical assessment. A platform can record and reproduce information consistently while still relying on an incorrect measurement boundary or calculation method. The verifier must independently assess the underlying evidence.
The continuing complexity of physical industrial processes therefore remains central to demand for specialist engineering services.
Serbia and the Western Balkans could support international verification work
The Western Balkans combine industrial production, electricity generation, engineering expertise and established commercial links with EU markets. Serbia has engineering companies involved in industrial projects, electrical infrastructure, automation, technical supervision and environmental systems.
These capabilities could be adapted to support CBAM verification activities. International assurance organisations may benefit from local partners with knowledge of industrial installations, access to technical personnel and experience coordinating with plant operators.
The opportunity is not restricted to facilities in Serbia. Regional specialists able to work under international verification procedures could support assignments elsewhere in south-eastern Europe, drawing on experience with power-generation assets, industrial electrical systems and manufacturing processes across neighbouring countries.
The scale of the opportunity remains dependent on actual demand. Available assignments will be influenced by the volume of actual-emissions verification work, the capacity of accredited verifiers and their decisions on permanent staffing versus external technical support.
The market is still in an early operational phase, and not every supplier or verifier will require a permanent local engineering team. Some installations may be assessed using existing verification personnel, while others may need targeted specialist involvement rather than extensive outsourcing.
The strongest commercial proposition is therefore likely to depend on demonstrable technical competence, clearly defined assignments and recurring relationships supported by an actual workload.
The first verification cycle will test technical capacity
The first annual CBAM verification cycle will test whether non-EU installations have maintained adequate monitoring records, whether accredited verifiers have sufficient qualified personnel and whether the reporting timetable can be met.
It will also test coordination between operators, technical specialists and verification organisations. Difficulties may arise where monitoring arrangements are incomplete, precursor information is fragmented or complex production systems require additional investigation.
Qualified local engineering expertise could help improve the quality of evidence and reduce delays in these circumstances. Its effectiveness will depend on maintaining the legal distinction between technical assistance and independent assurance.
Engineering firms involved in developing a supplier’s emissions reporting system cannot automatically assume that they are eligible to verify the same work independently. Accredited verification organisations using external experts remain responsible for conclusions issued under their accreditation.
These safeguards protect the credibility of the verification process while defining the conditions under which engineering companies can participate in the market.
For international verification organisations, the most valuable local partner will be one capable of supplying the appropriate specialists, supporting evidence-based assessments and operating reliably within the verifier’s accredited management system.
As EU importers and non-EU producers prepare for formal scrutiny of emissions information, industrial verification is developing into an international engineering services market. The verification opinion remains the responsibility of the accredited body, while the commercial challenge is securing the technical expertise needed to examine industrial evidence across global supply chains.
Supported by CBAM.Clarion.Engineer
