appropriate UK regulator

187(1) in relation to an EEA firm (in accordance with Schedule 3 paragraph 13(4) and 14(4) to the Act), whichever of the FCA or PRA is the competent authority for the purposes of the relevant Single Market Directive; (2) in relation to a UK firm (in accordance with Schedule 3 paragraph 18A to the Act),(a) the PRA, where the firm is a PRA-authorised person; and(b) in any other case, the FCA.(3) in relation to a Treaty firm (in accordance with section 35(2A) of the Act),(a) in the case of a PRA-authorised person, the PRA; and(b) in any other case, the FCA.