(1) Chapter 1 of Part 18 of the Principal Act is amended -

(a) in section 520(1) by inserting the following definitions:

"'partnership trade or profession' means a trade or profession carried on by two or more persons in partnership;

'precedent partner', in relation to a partnership and a partnership trade or profession, has the same meaning as in section 1007;",

(b) in section 520(1) by substituting the following for the definition of "specified person":

"'specified person', in relation to a relevant payment, means the person to whom that payment is made but, in a case where the relevant payment (including a payment to which section 522 applies) is in relation to a professional service that is provided in the conduct of a partnership trade or profession, means each person who is a partner in the partnership;",

(c) in section 522(a) by substituting "the insurer shall, subject to section 529A, discharge" for "the insurer shall discharge",

(d) in section 523(1)(b) by substituting "The specified person or, where section 529A applies, the partnership" for "The specified person",