(1) This section applies for the purposes of this Part.

(2) The following persons are "participants" in a payment system -

(a) the operator of the payment system (see subsection (3));

(b) any infrastructure provider (see subsection (4));

(c) any payment service provider (see subsections (5) and (5A)).

(But see also subsection (8).)

(3) "Operator", in relation to a payment system, means any person with responsibility under the system for managing or operating it; and any reference to the operation of a payment system includes a reference to its management.

(4) "Infrastructure provider", in relation to a payment system, means any person who provides or controls any part of the infrastructure used for the purposes of operating the payment system.