The EU’s Carbon Border Adjustment Mechanism (CBAM): What Manufacturers Need to Know
Why CBAM can affect manufacturers who've never shipped directly to the EU, and how the transitional period works.
Why CBAM can affect manufacturers who've never shipped directly to the EU, and how the transitional period works.
A manufacturer that has never shipped a product
to the European Union can still end up affected by the EU’s Carbon
Border Adjustment Mechanism — if a customer further up their
own supply chain has to report the embedded emissions of everything
they source, including from suppliers in South Carolina.

CBAM requires EU importers of certain goods — initially
iron, steel, aluminum, cement, fertilizers, hydrogen, and
electricity — to report and eventually pay for the embedded
carbon emissions of what they’re importing. The direct compliance
burden sits with the EU importer, but they can only report accurately
if their non-EU suppliers provide verified emissions data for the
product.
| Data source | Trade-off |
|---|---|
| EU default values | No supplier effort required, but typically set conservatively high |
| Actual supplier-reported data | Requires calculation and verification, but usually shows a lower, more accurate footprint |
Suppliers with genuinely efficient processes have a direct
financial incentive to provide actual data rather than let their
product be assessed against a conservative default — the
default is designed to not undercount emissions, which usually means
it overstates them relative to a well-run facility.

CBAM’s transitional period requires reporting embedded emissions
without a financial charge attached, giving importers and their
suppliers time to build measurement and verification capability
before the financial mechanism takes full effect. Waiting until the
charge applies to start tracking emissions data leaves a supplier
scrambling to reconstruct historical figures they should have been
capturing already.

Embedded emissions calculations under CBAM generally cover direct
emissions from the manufacturing process and the emissions
associated with electricity consumed making the product —
similar in concept to Scope 1 and Scope 2 emissions under the GHG
Protocol, applied at the product level rather than the whole
facility.

CBAM builds directly on the emissions accounting fundamentals
covered in our related guide on
GHG Protocol
scope emissions, part of SCMEP’s
Supply Chain and
Sustainability training catalog. As a NIST
Manufacturing Extension Partnership affiliate serving South Carolina
manufacturers since 1989, our focus is helping exporters get
ahead of a data request before an EU customer sends one.
If your facility exports covered goods to the EU, directly or
through an intermediate customer, you can
browse the Supply Chain and
Sustainability training catalog or email the training team.
The direct compliance burden sits with EU importers, but they need verified emissions data from non-EU suppliers to report accurately — so a manufacturer without any direct EU customer can still be affected indirectly.
EU default values are set conservatively high to avoid undercounting emissions. A supplier with an efficient process usually shows a lower, more accurate footprint by providing verified actual data instead.
Embedded emissions have to be reported without a financial charge attached, giving importers and suppliers time to build measurement and verification capability before the financial mechanism takes full effect.
Generally direct emissions from manufacturing and emissions associated with electricity consumed making the product — similar to Scope 1 and Scope 2 under the GHG Protocol, applied at the product level.