65 One thing that is quite clear from the language of ss 45(6) and 47 is that conduct falling within s 47 would, but for s 45(6), always fall within s 45. Section 45(2)(a)(i) involves what is often referred to as a "per se" violation. That is to say an offence will be committed when conduct falls within s 45(2)(a)(i), whether or not it is shown that the conduct has an effect on competition. Another way of stating that is that the legislature assumed that conduct which fell within s 45(2)(a)(i) would have an effect on competition and should, therefore, be proscribed. On the other hand conduct which constitutes exclusive dealing within s 47 (other than third line forcing) is not per se prohibited unless it has the purpose or effect of substantially lessening competition and does not fall within ss 47 (10) or (10A). The purpose of s 45(6) is, inter alia, to remove from s 45(2)(a)(i) conduct which constitutes exclusive dealing within s 47 and apply to that conduct the purpose or effect on competition test applicable other than to third line forcing.
66 It is obvious, therefore, that s 45(2)(a)(i) and s 47 are mutually exclusive.
67 When one comes to construe s 45(6), the reference to "provision" should not be construed to mean a "clause". Had this been what Parliament intended it could have said so. The word "provision" is not used in any technical sense. It may, in a particular case, mean "clause" or in another case "term" cf Saunders v Inland Revenue Commissioners [1956] Ch 283. The question whether a contract contains a provision prohibiting particular conduct involves looking to see whether there is any prohibition of the particular kind in the contract, whether the prohibition is to be found in a clause of the contract or in some part of a clause of the contract. If the question were asked of Visy whether the drafts, if they had become contracts, would have contained a provision which prohibited NPP from acquiring goods from those persons who were customers of Visy, it is hard to see that any answer would be possible other than in the affirmative. Conversely, it may be said, if the question were asked whether the drafts if executed would have contained a provision which prohibited NPP from supplying services to customers of Visy, the answer would likewise be in the affirmative.
68 The next question is the meaning of the phrase "by reason that" which replaced, it will be recalled, the words "in so far as". If the present facts had arisen under the original 1974 legislation there would be little difficulty in concluding that Parliament intended that to the extent that the conduct was not conduct within s 47 it remained to be considered under s 45. To the extent that the conduct fell within s 47 it would fall to be considered under that section. There is nothing in the extrinsic materials that would suggest that Parliament intended a different result as a consequence of the 1977 amendments. Indeed, it would be remarkable if Parliament had intended a different result.
69 There would be little doubt if each of the drafts had contained separate clauses or subclauses, one of which operated to prohibit NPP from supplying waste removal services to persons and the other of which operated to prohibit NPP from purchasing waste from persons, the making of the contract would fall to be tested within s 45(2)(a)(i) so far as it dealt with the purchase of waste, but would fall to be tested within s 47 so far as it dealt with the supply of waste removal services. Why should a different result accrue merely because the contract used the word "collect" which, in the sense used in the industry, would cover both such prohibitions, rather than set out each prohibition in a separate clause or subclause?
70 The construction sought to be advanced on behalf of Visy has the consequence that where an activity prohibited by s 45(2)(a)(i) has, as here, a dual character, s 47 operates to take the contract which contains the exclusionary provision wholly outside the prohibition of per se conduct in s 45, notwithstanding that if the activity prohibited had been solely of the character not covered by s 47, s 45(2)(a)(i) would have continued to apply. It is hard, as we have already indicated, to see why that would have been what Parliament intended. Far from giving s 45(6) a narrow operation as the learned primary Judge suggested, the construction we favour gives s 45(6) an operation which accords with a national legislative policy, so far as that may be ascertained from the words which Parliament has used, and far from being a narrow construction produces a sensible result.
71 It is submitted on behalf of Visy that the clear words, "by reason that", should not be replaced, as Senior Counsel for the ACCC submitted, by the words "if and in so far as", particularly where those actual words appear in different contexts in both ss 45 and 47. We agree that there is a danger in substituting one set of words for another set of words which Parliament has used. In our view there is no reason to do so. This is because we are of the view that the words "by reason that" can and do here bear a meaning that would operate to apply the provisions of s 47 (to the exclusion of s 45(2)(a)(i)) to the making of a contract which contains a provision falling within s 47 but continue to apply s 45(2)(a)(i) to the making of that contract other than so far as the terms of a provision of that contract fall within s 47. After all, s 47 does not apply to each and every provision of the contract or, indeed, to each and every provision in a contract which is an exclusionary provision but only to an exclusionary provision which falls within s 47 by reason that the provision is of a kind that when given effect to it would constitute conduct that would contravene that section.
72 There is no authority which has needed to consider the question which arises here. In dicta, contained in an interlocutory judgment, Hely J said in South Sydney District Rugby League Football Club Ltd v News Ltd (1999) 169 ALR 120 at 135:
"The expression 'by reason that' has a meaning equivalent to 'if and in so far as'. If the expression is read in that way, there is harmony between the two parts of the section, and the legislative intention of subjecting exclusive dealing to s 47 regulation, rather than regulation under s 45, is effectuated."