To acquire CBAM certificates you first need to calculate how much carbon pollution was created when a product was made. First, the importer reports how many greenhouse gases were released during production. Then, this amount is compared to the carbon price that European companies pay in the EU Emissions Trading System (ETS).
The importer in the EU or the indirect representative of the importer outside the EU buys CBAM certificates that match the pollution level. If the exporting country already charged a carbon tax, that amount is deducted first. More pollution means higher cost; cleaner production means lower cost.
If an importer brings in less than 50 metric tons per year, they are not required to purchase CBAM certificates.”