# Steel and Aluminium DPP: Carbon Evidence, CBAM and Circular Material Data

> How steel and aluminium producers can prepare for expected ESPR passports while keeping CBAM, product footprints, recycled content and low-carbon claims technically distinct.

## Why metals are a priority

Iron and steel and aluminium are priority intermediate products in the Commission’s **2025–2030 ESPR working plan**. The indicative adoption timetable is **2026 for iron and steel** and **2027 for aluminium**. These are **expected policy milestones**, not proof that a final passport field list or market application date already exists. [1](https://environment.ec.europa.eu/document/download/5f7ff5e2-ebe9-4bd4-a139-db881bd6398f_en)

Their inclusion reflects metals’ environmental significance and their influence on downstream products. A material producer’s data can affect the footprint and circularity claims of vehicles, machinery, appliances and buildings.

For these sectors, the digital product passport problem is less about creating a consumer-facing page and more about preserving reliable evidence through complex transformations: slabs become coils, billets become extrusions, coils become parts, and scrap returns through different production routes.

The central task is to connect **physical material identity**, **production evidence** and **method-specific environmental information** without pretending that one carbon number satisfies every regulatory purpose.

## Separate the regulatory layers

A metals business may face several overlapping information requests.

| Instrument or system | Primary purpose | Why it is not interchangeable with a DPP |
|---|---|---|
| ESPR product measures | Product sustainability and information requirements | Final metal-specific obligations depend on adopted measures |
| CBAM | Carbon-price adjustment for covered imports | Uses its own scope, emissions rules and customs responsibilities |
| EU ETS | Installation-level emissions and carbon pricing | Installation data is not automatically a product footprint |
| Product carbon footprint | Climate impact attributed to a product | Depends on boundary, allocation and methodology |
| Environmental product declaration | Structured lifecycle environmental disclosure | Usually covers more than climate change |
| Mill or inspection certificate | Material specification and test evidence | Does not by itself establish environmental performance |
| Private low-carbon label | Scheme-defined performance communication | Thresholds and verification differ between schemes |

The expected ESPR passport should connect these records where useful. It should not merge their legal meanings.

A steel inspection certificate may confirm grade and mechanical properties for a heat or batch. A footprint may cover a production route and reporting period. A CBAM declaration concerns imported goods and embedded emissions under its own rules. Mapping among them requires explicit assumptions.

## CBAM’s definitive phase began in 2026

The definitive CBAM regime applies from **1 January 2026**. For covered goods, importers or their indirect customs representatives must assess authorisation, embedded-emissions declarations and certificate obligations. Under the simplified regime, a **single annual mass-based threshold of 50 tonnes** applies to relevant covered imports; it is not a universal exemption for all CBAM sectors or a threshold assessed separately for every shipment. [1](https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/cbam-definitive-regime_en)

Steel and aluminium coverage is determined by the regulation’s commodity codes and conditions. “Contains steel” is not sufficient to conclude that a product is covered, while a downstream-looking product may still fall within a listed code.

For 2026 imports, certificate purchases begin from **February 2027**. The first annual declarations and corresponding certificate surrender are due by **30 September 2027** under the amended timetable. This distinction matters for budgeting: financial exposure arises from 2026 imports even though purchases and annual settlement occur later. [3](https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/cbam-communication-and-news_en)

Certificate prices use quarterly EU ETS auction-price averages for 2026 and weekly averages from 2027. Carbon prices effectively paid in the country of production can be relevant to deductions, subject to the applicable evidence rules. [4](https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/price-cbam-certificates_en)

### What a passport can contribute

A passport-ready data system can preserve installation identity, production-route information, reporting periods, precursor data and verification references. This can reduce repeated supplier questionnaires.

However, a supplier’s “DPP carbon footprint” is not automatically a valid CBAM emissions figure. The importer must still ensure that the value meets the applicable CBAM methodology and verification requirements.

## Carbon methodologies: the boundary is part of the result

A meaningful carbon value needs more than a number and a unit. At minimum, record:

- The product and declared unit.
- System boundary and included production stages.
- Reporting period and geographical coverage.
- Production route and relevant electricity treatment.
- Precursor and other upstream inputs.
- Allocation rules for co-products and scrap.
- Primary versus secondary data.
- Verification status and methodology version.

For example, a tonne of crude steel at the steelworks gate is not the same declared product as a tonne of coated coil after rolling, annealing and coating. Comparing their values without adjustment can reward an incomplete boundary rather than a genuinely lower-emission product.

### Steel-specific issues

Steel footprints are sensitive to the production route, ore and metallic inputs, coke and other reductants, fuel use, electricity and finishing operations. Electric-arc-furnace steel is not inherently zero-carbon: the metallic charge, grid mix, electrodes, fuels and upstream production remain relevant.

Hydrogen-based direct reduced iron also requires evidence about hydrogen production and electricity. “Hydrogen-ready” equipment describes technical capability, not demonstrated emissions performance for a particular delivery.

### Aluminium-specific issues

Primary aluminium’s footprint can be strongly affected by electricity used in smelting, as well as alumina refining, anode consumption and process emissions. Remelting scrap generally avoids many primary-production stages, but the resulting footprint still depends on collection, preparation, metal yield, alloy additions and energy.

A low-emission smelter does not automatically establish the footprint of a finished extrusion. Billet casting, transport, extrusion, heat treatment and surface finishing may need inclusion depending on the declared boundary.

Recognised frameworks such as ISO 14067 and lifecycle-based product rules can support product-carbon accounting, while construction EPDs commonly use EN 15804. None should be assumed to replace the specific methodology ultimately adopted under ESPR.

## Recycled content: distinguish the physical flow from the claim

Recycled content is commercially important, but an unqualified percentage can obscure major differences:

- Pre-consumer versus post-consumer scrap.
- Purchased scrap versus internal process returns.
- Physical segregation versus controlled blending.
- Product-specific measurement versus site-level allocation.
- Mass-balance accounting versus physical content.

These distinctions should be stored as separate attributes, not compressed into a single “circularity” field.

Internal scrap loops require particular care. Material that never leaves an integrated production process may receive different treatment from recovered scrap under a given standard. A company should not count the same loop repeatedly to inflate a recycled-content claim.

For aluminium, alloy compatibility and contamination affect whether recovered material can return to an equivalent application. For steel, residual elements can constrain certain high-quality applications. A high recycled-content percentage therefore does not alone establish suitability, recyclability or closed-loop performance.

An expected DPP should support evidence about material quality and recovery routes as well as quantity. Exact mandatory content definitions and thresholds remain **expected until established in final applicable measures**.

## Low-carbon steel labels: useful, but not a universal legal grade

The Commission’s 2025 Steel and Metals Action Plan identifies lead markets and demand for cleaner metals as policy priorities. It is a policy communication, not a certificate proving that a particular steel product qualifies as low-carbon. [2](https://single-market-economy.ec.europa.eu/publications/european-steel-and-metals-action-plan_en)

The March 2026 Industrial Accelerator Act text is a **proposal**. Requirements depending on its final adoption remain **expected**, and businesses should not market a proposed EU framework as an already mandatory certification system. [1](https://single-market-economy.ec.europa.eu/document/download/9bc8eb85-4d43-4025-be7b-c86b9f3648ec_en)

Private labels and buyer specifications can be useful, but their boundaries and thresholds vary. Some approaches account for scrap availability or distinguish production routes; others apply an absolute intensity threshold. A product can qualify under one scheme without qualifying under another.

A defensible claim should therefore state the scheme, version, boundary, certified entity or product, verification status and applicable period. “Green steel” without that context is weaker than a specific verified emissions statement.

## Expected steel and aluminium DPP data

The following is a readiness model, not a final mandatory field list.

| Expected area | Recommended attributes |
|---|---|
| Identity | Producer, facility, product, grade and relevant batch or heat identifiers |
| Technical specification | Composition, dimensions, applicable standards and certificate references |
| Production | Route, relevant process stages and reporting period |
| Climate | Value, unit, boundary, method, allocation and verification |
| Circular inputs | Recycled-content categories, calculation method and evidence |
| Substances | Relevant substances-of-concern information |
| Downstream use | Processing constraints, joining or coating considerations where useful |
| End of life | Sorting, separation and recycling guidance |
| Compliance links | Relevant declarations, inspection records and scheme references |

Granularity should follow the legal measure and practical traceability needs. A heat-level identifier cannot simply be carried unchanged through every split, blend and transformation without recording parent–child relationships.

For example, a service centre cutting several coils into customer orders needs a way to preserve source-coil references. A remelter combining scrap streams needs a different model. Both may be valid, but they support different claims.

## Implementation checklist

- Map products to ESPR workstreams and CBAM commodity codes separately.
- Determine importer and authorised-declarant responsibilities.
- Monitor annual covered-import volumes against the applicable threshold.
- Collect installation and precursor data before year-end reporting.
- Keep CBAM emissions distinct from lifecycle product footprints.
- Record boundaries, units and methodology versions with every carbon value.
- Define recycled-content categories and accounting rules.
- Connect heat, cast, coil, billet and shipment identities.
- Preserve evidence through cutting, blending and remelting.
- Review low-carbon claims against the exact scheme used.
- Design public and restricted data access separately.
- Treat unadopted passport requirements as expected.
- Test one real customer-to-producer evidence request end to end.

The strongest preparation is not a premature declaration of “DPP compliance”. It is a traceable material-data system capable of producing the correct evidence for the correct legal or commercial purpose.

## Sources

- https://environment.ec.europa.eu/document/download/5f7ff5e2-ebe9-4bd4-a139-db881bd6398f_en
- https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/cbam-definitive-regime_en
- https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/cbam-communication-and-news_en
- https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/price-cbam-certificates_en
- https://taxation-customs.ec.europa.eu/document/download/013fa763-5dce-4726-a204-69fec04d5ce2_en
- https://eur-lex.europa.eu/eli/reg/2023/956/oj
- https://single-market-economy.ec.europa.eu/publications/european-steel-and-metals-action-plan_en
- https://single-market-economy.ec.europa.eu/document/download/9bc8eb85-4d43-4025-be7b-c86b9f3648ec_en