Māori interests under the new planning laws: what iwi and hapū need to know

New planning laws remove many of the RMA’s-specific provisions protecting Māori interests, leaving key questions about the recognition of Māori interests and Te Tiriti obligations to be addressed through national direction and the courts.

As a result, iwi and hapū will need to engage early and strategically to protect and advance their interests under the new framework. This article outlines the key changes, explores their implications for iwi, hapū, councils, developers, and infrastructure providers, and provides practical guidance on steps Māori can take now to prepare for the new regime.

In previous articles we have summarised key changes to the Planning Bill and Natural Environment Bill as they progressed through the final stages of the legislative process, including consideration of how the proposed legislation addresses Māori interests (see our previous article here). Now that the Bills have passed through the House, this FYI examines our preliminary comments in greater detail and offers some tentative observations about how the relevant provisions in the Planning Act 2026 (PA) and Natural Environment Act 2026 (NEA) (together, the Acts) may be interpreted and applied.

It is useful to start with an understanding of how the new legislation differs from the Resource Management Act 1991 (RMA), which we summarise below. For ease of reading, and given the similarities between the PA and NEA, we have referred only to the PA provisions:

RMA

Planning Act

·       Section 5 - purpose of promoting sustainable management.

·       Section 6(e) - recognition and provision for tikanga-based relationships.

·       Section 7(a) - recognition of kaitiakitanga.

·       Section 8- account taken of the principles of te Tiriti.

·       Various provisions requiring consultation on planning documents

·       Mana Whakahono ā Rohe relationship agreements.

 

·       Section 4 - purpose of providing for the enjoyment of land by establishing a framework for planning and regulating the use and development of land.

·       Section 8:

-       Māori participation (consultation) in development of planning documents.

-       Identification and protection of sites of significance to Māori.

-       enabling the development and protection of identified Māori land.

·       Section 232 - iwi participation agreements.

·       Section 10 - equivalent effect to Treaty settlements to greatest extent possible.

The Acts set out “goals” that national policy direction, national standards, regional spatial plans, natural environment plans and land use plans must “seek to achieve”.[2] The goals include a “Māori interests goal”, which is “to provide for Māori interests through”:[3]

(i) Māori participation in the development of national instruments, spatial planning, and land use plans; and

(ii) the identification and protection of sites of significance to Māori (including, wāhi tapu, water bodies, or sites in or on the coastal marine area); and

(iii) enabling the development and protection of identified Māori land.

In addition, both Acts expressly list provisions intended to “recognise the Crown’s responsibilities in relation to the Treaty of Waitangi/te Tiriti o Waitangi”.[4] These provisions include (amongst other things) the “Māori interests goal” (set out above), requirements to consult with “iwi authorities” when preparing statutory planning documents and for regard to be had to “any statutory acknowledgement, and relevant planning document recognised by an iwi authority”. “Iwi authority” is defined as “the authority that represents an iwi and that is recognised by that iwi as having authority to do so”.

Finally, section 10 requires all persons exercising or performing functions, powers, and duties under the Acts to give effect to Treaty settlements in a manner that is “the same as, or equivalent to, the effect that the redress or arrangement had under” the RMA.

To a significant degree, the way in which these provisions will be interpreted and applied will depend on Ministerial decisions enacted through national direction and regulations. This is particularly so where provisions require decision-makers to consider matters relating to Māori interests alongside several other relevant factors.

We discuss these provisions below.  But first we make some comments about the general relevance of mātauranga and tikanga Māori, Te Tiriti o Waitangi/Treaty of Waitangi and cultural effects.

In 2020, the High Court in Ngāti Maru Trust observed that the RMA was “replete with references to kupu Māori” (Māori terms and concepts) including “Māori, iwi, hapū, kaitiakitanga, tangata whenua, mana whenua, tāonga, taiapure, mahinga mataitai and tikanga Māori”.  The Court noted that:[5]

Parliament plainly anticipated that resource management decision-makers will be able to grasp these concepts and where necessary, apply them in accordance with tikanga Māori. In this regard, local authorities and the Environment Court regularly deal with these concepts and their application, and have done so for nearly 30 years. What can be seen from even a cursory review of that case law over that time span is an evolving understanding and application of mātauranga Māori and tikanga Māori. While tikanga Māori is defined in the RMA as “customary values and practices” it has come to be understood as a body of principles, values and law that is cognisable by the Courts.

In the context of the Acts, an important issue for decision-makers will be the relevance of mātauranga Māori and tikanga Māori.  As indicated in the summary table above, the new legislation has not replicated many of the relevant RMA provisions. However, there are provisions that will require decision-makers to engage with and apply mātauranga Māori and tikanga Māori. Moreover, while the legislation does not expressly make it a mandatory consideration for every decision, given its status as law,[6] we expect tikanga Māori will remain an important aspect of decision-making generally. For example, tikanga Māori may be relevant when considering the statutory purpose of providing for the “enjoyment of land” or what consultation might require in some cases.

We anticipate arguments about the general relevance of the Treaty and the Treaty principles under the Acts. Neither the PA nor NEA refer to the Treaty principles at all - either to apply or exclude them.  Instead, the Acts’ Treaty clauses list which provisions recognise the Crown’s Treaty responsibilities and require the effect of Treaty settlements to be continued.

In general, a “broad unquibbling, and practical interpretation” of Treaty clauses is required.[7] And, in terms of the statutes that specify how the Treaty is given effect to, the Supreme Court in Trans-Tasman Resources noted the “constitutional significance of the Treaty to the modern New Zealand state” and said that:[8]

The courts will not easily read statutory language as excluding consideration of Treaty principles if a statute is silent on the question. It ought to follow therefore that Treaty clauses should not be narrowly construed.  Rather, they must be given a broad and generous construction.  An intention to constrain the ability of statutory decision-makers to respect Treaty principles should not be ascribed to Parliament unless that intention is made quite clear.

In light of this case law and the lack of a provision excluding relevance of the Treaty principles, we anticipate arguments that Treaty principles may be a relevant matter under the new legislation when, for example, determining what consultation may be required, assessing the effects of an activity or whether a site is deserving of protection.

The new legislation has continued the RMA’s focus on “effects”.[9] While given a broad definition in the Acts, the PA sets out what effects cannot be considered.[10] Notably, cultural or “mana whenua”[11] effects are not excluded. In this regard, adverse effects may include effects on ‘Māori culture’, which often stem from the tikanga-based relationships that iwi, hapū and whānau have with particular places and resources - and the responsibilities (including as kaitiaki) and entitlements inherent in the relationships.  Moreover, in some cases, it may be appropriate to consider Treaty principles when assessing such adverse effects.[12]

Section 13 of the Acts includes a goal to provide for Māori interests through “the identification and protection of sites of significance to Māori (including wāhi tapu, water bodies, or sites in or on the coastal marine area)”.  The term “sites of significance” is not defined, although “wāhi tapu” has the meaning given in section 6 of the Heritage New Zealand Pouhere Taonga Act 2014,[13] being “a place sacred to Māori in the traditional, spiritual, religious, ritual, or mythological sense”.

We anticipate arguments about what a “site of significance” is.  For example, must it be a relatively small and discrete area, or can it include larger areas such as rivers, islands or harbours? 

We also anticipate arguments about the significance of a site and how it should be protected.  Mātauranga and tikanga Māori is likely to be highly relevant when identifying the sites, including their physical extent and significance, and determining what is required to protect them.

Identifying and protecting sites of significance on private land may trigger the “regulatory relief” provisions of the new legislation, by which landowners can claim compensation for any “significant adverse impact on the reasonable use of land” from plan rules including, for example, a rule protecting a site of significance.[14] Notably, when assessing the significance of such impacts on land owners, the values of what is being protected or the historical context for the site (eg whether the site was part of a raupatu)[15] are not listed as matters to be considered.[16]

The legislation includes several provisions that require some level of consultation with Māori, primarily through iwi authorities.  For example, the Minister must “seek comment” from them before deciding to publicly notify a national instrument.[17] And, before notifying a proposed regional spatial plan, proposed land use plan, or proposed natural environment plan, the relevant body must “consult” tangata whenua (through iwi authorities) and any relevant customary marine title holders, provide a draft of the plan to these groups and “have regard to any advice they provide”.[18]

Given that these provisions are intended to “recognise” the Crown’s Treaty-related responsibilities, they will need to be interpreted and applied in that context.  Moreover, as noted above, tikanga may be relevant when deciding how to comply with these provisions.

When preparing draft regional spatial plans and draft land use plans, the relevant body must “have regard to” any relevant “planning document lodged by an iwi authority” and “statutory acknowledgement”.  The former are not defined although appear to be the “planning documents recognised by an iwi authority and lodged with 1 or more local authorities in the region authority” that must be recorded by each territorial authority.[19] Given that current iwi planning documents were prepared in the context of the RMA, iwi may want to consider if any modifications are necessary to better engage with the new legislation.

“Statutory acknowledgements” are the Crown acknowledgments recognising the values of particular areas and places set out in Treaty settlement legislation.

As we explained in a previous article, despite the Select Committee recommending otherwise, Cabinet decided to remove provision for existing Mana Whakahono a Rohe agreements (MWaR) from the new legislation.  MWaR were included in the RMA in 2017 in response to Waitangi Tribunal findings that the RMA was inconsistent with the Treaty because, in part, local authorities had not used existing mechanisms to enable Māori to participate in decision-making.[20] In a similar vein, the ability for iwi and local authorities to enter into Joint Management Agreements (JMA) under the RMA has been removed, as iwi (or any other type of Māori representative group) are not included in the list of “public authorities” with which these agreements can now be made under the PA.[21] 0We note that existing JMAs that were required by Treaty settlements will need to be considered as part of the duty to give effect to Treaty settlements (discussed below).

MWaR and JMAs have been replaced with “Iwi participation agreements” (IPA) in the new legislation.  These are agreements between iwi authorities and local authorities that may include hapū as “parties” to the agreement.  They “may specify” how the iwi authorities (and hapū, if any) will participate in processes for iwi authority participation provided for in the Acts (including processes relating to consultation on regional spatial plans, land use plans, and natural environment plans).  They can also specify how the parties will “engage on any other relevant matters” under the Acts “necessary to implement Treaty settlement redress.”

Compared to MWaR, an IPA is limited in scope, focusing only on administrative or procedural matters, and detailing how the statutory provisions relating to consultation and Treaty settlement implementation will be complied with.  MWaR, on the other hand, could address a wider range of matters relating to decision-making. 

However, we note that IPAs might not be the only way for local authorities and iwi to formalise their relationships in the absence of MWaR or JMAs. Local authorities remain able to enter into arrangements, relationship agreements, and memoranda of understanding independently of the Acts (eg. under the Local Government Act 2002), which may still provide a useful means for local authorities to foster cooperation with iwi, hapū, and other Māori representative groups.

As indicated earlier, the RMA provisions that have not been carried over to the new legislation were intended, at least in part, to address issues arising under the Te Tiriti o Waitangi/Treaty of Waitangi, including matters relating to the ownership and management of resources (eg. freshwater), as guaranteed under Article 2 to the Treaty.  Treaty settlements have also been negotiated, agreed, and implemented in the context of those provisions including the recognition and provision for tikanga-based relationships under section 6(e) of the RMA.  More specifically, many Treaty settlements incorporate mechanisms that directly engage with RMA processes as part of the redress package, such as requirements for joint management agreements, statutory acknowledgements, or notification obligations in relation to resource consent applications.

The new legislation requires decision-makers to:[22]

In relation to any particular Treaty settlement redress or arrangement… to the greatest extent possible under this Act…, give an effect that is the same as, or equivalent to, the effect that the redress or arrangement had under the Resource Management Act 1991.

There is an associated requirement for the Crown to discuss and seek agreement with post-settlement governance entities as to how their “Treaty settlement redress or arrangement could operate with the same or equivalent effect, to the greatest extent possible” under the new legislation that it had, to the effect that the redress or arrangement had under the RMA.[23]

As discussed in our previous article, this requirement raises several potential issues.  For example, what does “to the greatest extent possible” mean, given the constitutional significance of the Treaty?  And, given the significant differences between the RMA and the new legislation in terms of recognising Māori interests, what does giving effect to an existing Treaty settlement require?  The legislation endeavours to provide for the on-going effect of Te Ture Whaimana, the vision and strategy for the Waikato and Waipā Rivers, although it leaves open the potential need for further measures to give full effect of the Treaty settlements relating to these rivers.[24]

As noted above, the “Māori interests goal” includes “enabling the development and protection of identified Māori land”.[25] However, the substantive machinery giving effect to this goal is confined to the PA, in two schedule provisions that both draw from equivalent provisions from the former Spatial Planning Act and Natural and Built Environment Act. These provisions apply to the creation of regional spatial plans and designations respectively, requiring decision-makers to act in a manner that recognises concerned Māori land as a “taonga tuku iho” - generally understood as a treasure handed down from ancestors to future generations

Specifically, where a regional spatial plan identifies future infrastructure in a location where it may affect identified Māori land, decision-makers must act in a manner that recognises the identified Māori land is a taonga tuku iho  for the owners of the land and the hapū associated with it, and must consider the rights and interests of owners to retain, control, use, and occupy the land for the benefit of present and future generations of owners, their whānau, and their hapū.[26]

Similar considerations apply to anyone exercising a power or performing a function of duty relating to a designation or proposed designation that may affect identified Māori land.[27]

We envision that the application of these provisions will draw on the interpretation of land as a taonga tuku iho as it has developed under Te Ture Whenua Māori Act 1993. However, we note that this concept is simply one of many to be considered in the regional spatial planning and designation-making processes. As such, higher-order policy instruments will play a significant role in shaping how the concept is applied. Whilst being anchored by the past, the term is inherently forward-looking - but it remains to be seen how decision-makers will balance the preservation of Māori land with its development.

Concluding comments

As the new legislation is implemented, decision-makers will need to interpret and apply the new requirements intended to provide for the Crown’s Treaty responsibilities and Māori interests.

Re-negotiating Treaty settlements under section 9 of the Acts will be a key priority for hapū and iwi that have Treaty settlements.  However, more generally, it will be important to engage, where possible, in the development of national directions and regulations, as in many respects how the Māori interests goal (and the Treaty-related provisions more generally) will be implemented in practice will depend on Ministerial decisions made through those instruments.  Iwi and hapū should also consider whether an IPA (or other agreement) with local authorities would better provide for their input into the planning processes that will commence over the next few years.  Where an IPA is not available or does not meet their needs, iwi and hapū may also wish to consider pursuing arrangements, relationship agreements, or memoranda of understanding with local authorities outside the Acts.  For similar reasons, iwi and hapū should review their existing management plans to ensure they are fit for purpose under the new Acts, or prepare new plans if necessary.

For local authorities, requiring authorities, developers and others who will be engaging with the new legislation, it will be important to ensure that the requirements intended to provide for the Treaty and Māori interests are fulfilled, including the duty to give effect to existing Treaty settlement redress to the same or equivalent effect as under the RMA.  Generally, establishing and maintaining long-term, respectful relationships with iwi and hapū, informed by an understanding of relevant tikanga Māori and Treaty issues, will continue to be important under the new legislation.

This article was written with significant contribution by:

Oscar Wilson (Kāi Tahu, Ngāti Raukawa ki te Tonga)

Ashe Wainui Mackle (Ngāti Porou, Tūhoe, Ngā Ariki Kaipūtahi). 

Oscar and Ashe are both members of Te Paringa Tai, Simpson Grierson’s Māori Business Rōpū and our Planning and Environment Practice Group. 


1 The purpose of this NEA is to establish a framework for the use, protection, and enhancement of the natural environment (section 4)

2 PA, section 13.

3 PA, section 13(1)(i); NEA section 13(1)(g) noting that this refers to “natural environment plans”, not “land use plans” reflecting different statutory functions.

4 PA, section 8, NEA section 8.

5 Ngati Maru Trust v Ngāti Whātua Ōrākei Whaia Maia [2021] 3 NZLR 352, [64].

6 Ellis v R [2022] NZSC 114 at [116] per Glazebrook J.

7 New Zealand Maori Council v Attorney-General [1987] 1 NZLR 641 (CA) at 655 per Cooke P.

8 Trans-Tasman Resources Ltd v Taranaki-Whanganui Conservation Board & Ors [2021] NZSC 127 at [151], per Ellen France and William Young JJ.

9 PA, sections 17 and 18.

10 PA, section 17.

11 McCallum Bros Ltd v Auckland Council [2024] NZEnvC 75, [156].

12 McCallum Bros Ltd v Auckland Council [2024] NZEnvC 75 at [310] to [315]; Beresford v Queenstown Lakes District Council [2024] NZEnvC 182 at [60] to [65].

13 PA, section 3.

14 PA, Schedule 3, clause 61.

15 Confiscation of Māori land by the Crown, generally as punishment for resisting Crown actions (eg. invasion of the Waikato in the 1800s).

16 PA, Schedule 3, clause 66(2).

17 PA, section 65.

18 PA, Schedule 2, clause 11; PA, Schedule 3, clause 14.

19 PA, Schedule 2, clause 6(1)(l).

20 Waitangi Tribunal: The Stage 2 Report on the National Freshwater and Geothermal Resources Claims – Pre-publication Version (WAI 2358), page 535.

21 PA, Section 255.

22 PA, section 10.

23 PA, section 9.

24 PA, section 11.

25 As defined in section 3 of the Acts.

26 PA, Schedule 2, clause 10.

27 PA, Schedule 5, clause 2.

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