supervisory authority concerned

‘supervisory authority concerned’ means a supervisory authority which is concerned by the processing of personal data because:

(a)

the controller or processor is established on the territory of the Member State of that supervisory authority;

(b)

data subjects residing in the Member State of that supervisory authority are substantially affected or likely to be substantially affected by the processing; or

(c)

a complaint has been lodged with that supervisory authority

GDPR Article 4 Paragraph 22