“Inconsistencies in the figures of default values and benchmarks would dilute the incentive for cleaner production processes and allow high-emission imports to enter the EU market with insufficient carbon costs,” said one CBAM industry representative, granted anonymity to discuss the sensitive talks. “This could result in a CBAM that is not only significantly less effective but most likely counterproductive.”

The default values for CO2 emissions are like a stick. When the legislation was designed, they were expected to be set quite high to “punish importers that are not providing real emission data,” and encourage companies to report their actual emissions to pay a lower CBAM fee, said Leon de Graaf, acting president of the Business for CBAM Coalition.

But if these default values are too low then importers no longer have any incentive to provide their real emissions data. They risk making the CBAM less effective because it allows imported goods to appear cleaner than they really are, he said.

The Commission is under pressure to adopt these EU acts quickly as they’re needed to set the last technical details for the implementation of the CBAM, which applies from Jan. 1.

However, de Graaf warned against rushing that process.

On the one hand, importers “needed clarity yesterday” because they are currently agreeing import deals for next year and at the moment “cannot calculate what their CBAM cost will be,” he said.

But European importers are worried too, because once adopted the default emission values will apply for the next two years, the draft documents suggest. The CBAM regulation states that the default values “shall be revised periodically.”

“It means that if they are wrong now … they will hurt certain EU producers for at least two years,” de Graaf said.