lead supervisory authority
C2CEFR level
88/100Rarity: very rare
TechnicalRegister
Under the one-stop-shop mechanism, the authority with primary responsibility for a controller's cross-border processing, usually that of its main establishment.
The Irish regulator acted as lead supervisory authority for the group's European operations.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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