for the definition of “interested person” there is substituted—

““interested person” means—

(a)

the person against whom enforcement action may be or has been taken;

(b)

any other person who will or may be required to meet, or to make a significant contribution towards, the cost of observing the restriction or complying with the requirement or condition; or

(c)

where the enforcement action which may be or has been taken relates specifically to goods or services which are to be or have been supplied by a person other than the one against whom enforcement action may be or has been taken, that person;”.