Key terms

Term	Meaning
CBAM	EU mechanism pricing the emissions embedded in certain imported goods
Authorised CBAM declarant	Person authorised to import CBAM goods; carries the obligations
Operator	Person who operates or controls a non-EU installation, incl. parent company
NCA	National competent authority of a Member State
CBAM certificate	Electronic certificate for one tonne of CO2e
De minimis threshold	50 tonnes net mass per importer per calendar year
Reporting period	Calendar year of production used as reference
Operator's emissions report	Annual report of embedded emissions, in English, on the official template
O3CI	CBAM registry portal for non-EU operators
EORI number	EU customs ID of an economic operator

Sources: REG Art 1, 2a, 3(17), 3(20), 3(24), 3(31), 4, 11, Annex VII; MA Art 1(5), 7, 10; O3CI.