47 As the respondents submitted, the EPA Act recognises that instruments may be both made and amended (see, for example, ss 26(3), 36(4) and Div 5 of Pt 3, albeit recognising that s 26(3) concerns a limited class of instrument relating to critical habitat). In this context, there is no justification for construing s 33A as empowering the Governor to make but one order prescribing the form and content for each type of environmental planning instrument. The text of s 33A does not support this limitation and the limitation is not obviously fundamental to the statutory scheme. For example, prescribing the form and content of amending local environmental plans would be one type of order (and thus standard instrument) potentially within the scope of s 33A. The use of the singular form ("a standard instrument") refers to the particular order and is an insufficient basis to support Castle Constructions' submissions. Once this is recognised there are no anomalies in the statutory scheme. The scheme is capable of sensible operation and achieves the objective of significantly greater consistency in the form and content of local environmental plans. In short:
(1) Section 33A applies to State environmental planning policies, regional environmental plans and local environmental plans but s 65(1A) applies to local environmental plans only. In this context, the relevant field of operation of s 65(1A) is local environmental plans. Hence, the criterion of reference "any applicable standard instrument" in s 65(1A) involves a distinction between applicable and inapplicable standard instruments for local environmental plans. Section 65(1A) is engaged only where the standard instrument is applicable to the draft local environmental plan being prepared.
(2) This construction of ss 33A and 65(1A) is consistent with the references to "any standard instrument" in ss 66(1)(b)(ii) and (iii) of the EPA Act. If it were otherwise, the accurate reference would have been to "the standard instrument, if any…" not "any standard instrument …that substantially governs the content and operation of the draft local environmental plan". The same conclusion applies to ss 68(8) and 69(2).
(3) The power to amend an environmental planning instrument in s 74 is subject to s 33A (see s 74A). Section 33A(6) confines the power of amendment. It enables an environmental planning instrument to be amended from time to time other than the mandatory provisions of the adopted standard instrument. The adopted standard instrument is a reference to the function in s 33(A)(2)(a). These provisions disclose precisely how far the requirement for uniformity extends. Specifically: - (i) under s 24 an environmental planning instrument is to be made in accordance with Pt 3, (ii) Pt 3 includes s 33A, (iii) under s 33A(2) an environmental instrument may be made in the form set out therein (by declaration and prescription), including a declaration that the applicable mandatory provisions of a standard instrument are adopted, (iv) under s 33A(4), if the mandatory provisions of a standard instrument so adopted are amended by a further order after they are adopted, the environmental planning instrument is taken (without further amendment) to adopt the amended provisions of the standard instrument, and (v) under s 33A(6) where a standard instrument has been adopted an environmental planning instrument (other than the mandatory provisions of the adopted standard instrument) may be amended.
(4) Clause 92 of Sch 6 to the EPA Act thus operates in the context of a legislative scheme that authorises the making of more than one standard instrument with respect to local environmental plans. The consistency of cl 92 with this scheme is apparent from its terms. Because cl 92 operates with respect to draft local environmental plans only (as ss 65 and 69 are concerned exclusively with local environmental plans) the references are to "the relevant standard instrument" rather than, for example, "the standard instrument". The relevant standard instrument will be any applicable standard instrument within the meaning of ss 65(1A) and 69(2). In other words, cl 92 recognises that s 33A (and, hence, ss 65(1A) and 69(2)) may operate with respect to more than one standard instrument.
(5) Within the legislative scheme so construed (particularly recognition of the fact that the Governor may make more than one standard instrument for local environmental plans under s 33A), all parts of cl 92 have work to do. The provision's work, however, depends on the gazettal of relevant standard instruments. Unless and until the standard instrument was made on 31 March 2006 neither s 65(1A) nor cl 92 could operate. Sub para (a) of cl 92 potentially applies to all draft plans if significant council resources have been expended in the preparation of the draft before the prescription of the relevant standard instrument. Sub para (b) of cl 92 applies to draft local environmental plans that amend a principal environmental planning instrument made before the prescription of the relevant standard instrument or an instrument referred to in sub para (a). Both sub paragaphs are qualified by the further requirement that the Director-General is satisfied that satisfactory arrangements have been made for the making of a replacement instrument in accordance with the relevant standard instrument. Importantly, although the amending instrument in sub para (b) will necessarily be a draft local environmental plan (as cl 92 operates despite ss 65(1A) and 69(2)) the principal environmental planning instrument may be a local environmental plan, regional environmental plan or State environmental planning policy made before the prescription of the relevant standard instrument (see s 36(4) of the EPA Act for the capacity of any instrument to amend an instrument whether of the same or a different type). The first part of cl 92(b) thus potentially has a more general operation than allowed for in Castle Constructions' submissions (presumably to support the argument that if the statute is read other than as it submitted cl 92(b) would have no work to do).
(6) There is no real ambiguity in the amendments to Pt 3 of the EPA Act with respect to standard instruments. Considerations of text and legislative purpose do not support Castle Constructions' submissions.
(7) With respect to the text, Castle Constructions' submissions placed substantial weight on cl 92 as a leading provision with which the construction of Pt 3 (as amended) must conform. Clause 92 is facultative (as the respondents submitted). As explained, principal environmental planning instruments may not be local environmental plans. There is no justification for reading the first part of cl 92(b) as applying only to necessary amendments to a principal local environmental plan made before 31 March 2006. Clause 92, as a transitional provision, should be construed consistently with Pt 3 as a whole (rather than the reverse). Specifically, the clause should not be read as: - (i) confining s 33A to a power to make only one standard instrument for each type of environmental planning instrument, or (ii) restricting the meaning of "any applicable standard instrument" within s 65(1A) to the type of standard instrument (that is, local environmental plans and not regional environmental plans or State environmental planning policies) in distinction from the substance of the standard instrument applying to local environmental plans. The legislative provisions are more fine-grained and provide more flexibility in the making of standard instruments than Castle Constructions would allow. Castle Constructions' approach would involve a "straitjacket" not only for local environmental plans but also for standard instruments.
(8) With respect to the legislative purpose, uniformity is achieved because amendments of adopted mandatory provisions of an applicable standard instrument are automatically incorporated within the environmental planning instrument (s 33A(4)) and those provisions cannot be amended (s 33A(6)). Further, whenever a standard instrument is made the Minister can ensure that its provisions are brought into effect within a reasonable time because of the continuing operation of s 33B.