Murray-Darling Basin Agreement (Schedule D — Permissible Transfers between Trading Zones) Protocol 2010

The Protocol operates around a small set of core concepts that determine permitted trades, the administrative pathway for approval, and the accounting constraints that bind transfers across hydraulic bottlenecks.

Trading zone (s 5; Table 1 in s 6). A trading zone is an area described in column 1 of Table 1 in section 6. Table 1 then prescribes which trading zones a person may transfer entitlements or allocations to or receive from (s 6(1); s 6(6)). The table uses numeric item identifiers (for example item 1 is Greater Goulburn) and maps permitted directions, marking some permitted directions as “back trade only” or “conditional” (s 6(2)-(3)). The Protocol treats the table as binding on approval authorities, and requires State Contracting Governments to ensure their licensing authorities do not approve transfers that contravene the table (s 6(5)).

Transfer forms (s 4; s 5 notes). The Protocol applies to allocation transfers, exchange rate trade and tagged trade (s 4). Several terms used in the Protocol are defined either in s 5 or by reference to the Act, including exchange rate trade and tagged trade (s 5 note). The Protocol also defines back trade (s 5), meaning a transfer that is no greater in volume than the net volume of preceding transfers between the same trading zones in the opposite direction and the volume available in the relevant valley account. The Table frequently disqualifies tagged trade for certain directions by stating “back trade only” (s 6(2)).

The Choke and cross‑Choke accounting (s 5, s 7-9). The Choke is defined as the Barmah Choke (s 5). Transfers across the Choke are subject to special rules. Section 7 prescribes special treatment of certain environmental water entitlements made pursuant to the Snowy Water Enquiry Deed, including that some such environmental entitlements to be used to improve the Snowy River must not be used to offset back trade (s 7(1)(a)), while entitlements to improve River Murray flows are to be counted as existing entitlement below the Choke and likewise not used to offset back trade (s 7(1)(b)). Section 8 requires the Authority to establish and maintain an entitlement record for transfers from below to above the Choke on or after 1 July 2007 and to maintain an allocation account that logs volumes used above the Choke under entitlements in the entitlement record and the net transfers of allocations from below to above the Choke (s 8(2)). The allocation account is set to zero each 1 July and adjusted by specified items (s 8(5)).

Exceptional circumstances (s 9). The Authority may determine that allocations may be transferred from above to below the Choke outside the usual prohibition on net transfers, for any year in which it estimates allocations will significantly reduce usual channel capacity constraints at the Choke. This determination is made after consulting the Committee and allows the Authority to specify period, total volume and conditions (s 9).

Lower Darling / Menindee Lakes Storage regime (s 11). The Protocol defines Menindee Lakes Storage as under Authority control or New South Wales control based on volume thresholds (480 000 ML and 640 000 ML) and sets out when entitlements or allocations may be transferred into/out of the Lower Darling valley. Entitlements must not be transferred into or out of the Lower Darling until the Ministerial Council resolves otherwise (s 11(2)). Allocations may be moved when Menindee Lakes Storage is under Authority control if the Authority considers there is sufficient volume to satisfy the transfer and other approved transfers and evaporative losses, and that the transfer will be called out of storage before the volume falls to 480 000 ML (s 11(3)). When Menindee Lakes Storage is under NSW control, transfers may not occur unless NSW, in consultation with the Authority and the Committee, determines to allow transfers and identifies no significant third‑party impacts or adverse impacts on State water entitlements under the Agreement (s 11(4)).

Administrative duties and decision points (s 6(5); s 8; s 10). Approval authorities must refuse transfers that contravene the Protocol and must not refuse transfers that comply unless the reasons for refusal are outside the Protocol’s scope (s 6(5)). The Authority is required to maintain entitlement records and allocation accounts (s 8(2)-(4)), and must be notified promptly by approval authorities for certain transfers (s 10(1)-(3)). The Authority advises whether proposed back trades from above to below the Choke may be approved; an approval authority must refuse if the Authority advises a transfer may not be approved (s 10(4)-(5)). These duties create an operational workflow linking State licensing authorities with the Basin Authority.

Interplay with external instruments. The Protocol explicitly incorporates the Snowy Water Enquiry Deed for special treatment of environmental entitlements (s 5; s 7). It also links to Schedule D to the Murray‑Darling Basin Agreement for power to make the Protocol (s 1 note; s 11(2) note refers to subclause 13(3) of Schedule D).

Together, these concepts create a regulated trading topology (who can trade with whom), special accounting and gating for transfers that cross the Choke, and a volume‑and‑threshold based regime for the Lower Darling tied to Menindee Lakes volumes and intergovernmental approvals.

The Protocol allocates rights and duties across several identifiable groups: water entitlement holders, allocation holders, State licensing or approval authorities, the Basin Authority (Authority), the Committee referenced in the Agreement, State Contracting Governments, and in limited respects environmental water managers and the Ministerial Council.

Water entitlement and allocation holders. The Protocol directly constrains persons diverting or using water within defined trading zones (s 6(1)). Those persons may transfer entitlements or allocations only along the routes permitted in Table 1 (s 6(1)). Where a trading zone is annotated “back trade only” or “conditional” the seller or buyer faces additional substantive restrictions (s 6(2)-(3)). Holders of environmental water entitlements derived from Snowy Water Enquiry Deed savings are also specifically affected: their entitlements have bespoke accounting and exclusion rules for offsetting back trade across the Choke (s 7).

Approval/licensing authorities. The relevant licensing authority or water authority is defined as the approval authority in relation to a transfer (s 5). State licensing authorities must ensure they do not approve transfers unless the transfers comply with the zoning and other rules of s 6 (s 6(5)(a)) and must not refuse to approve transfers that comply unless the reasons for refusal are outside the Protocol (s 6(5)(b)). Approval authorities are obliged to notify the Basin Authority promptly when they approve transfers of entitlements or allocations from below to above the Choke (s 10(1)), and must advise the Authority before approving a back trade from above to below the Choke (s 10(3)). Approval authorities thus perform gatekeeper and notification functions that can cause approvals to be delayed or refused where Authority advice is adverse (s 10(4)-(5)).

The Basin Authority (Authority). The Protocol places several record‑keeping and decision duties on the Authority. It must establish and maintain entitlement records and an allocation account concerning cross‑Choke transfers (s 8(2)). It must add and remove entitlements from the entitlement record when transfers occur (s 8(4)), maintain the allocation account with specified increases and decreases and set it to zero on each 1 July (s 8(5)), and advise approval authorities whether proposed back trades may be approved (s 10(4)). In certain years, after consulting the Committee, the Authority may itself determine that transfers from above to below the Choke may occur and set the period, total volume and conditions (s 9).

State Contracting Governments and the Committee. State Contracting Governments must ensure licensing authorities comply with s 6(5) (s 6(5)). The Committee is referenced as a consultation body for the Authority when the Authority is considering exceptional circumstances for Choke transfers (s 9) and in relation to NSW decisions about Menindee Lakes control (s 11(4)).

Environmental water managers. Environmental entitlements that derive from water savings downstream of the Choke under the Snowy Water Enquiry Deed are treated specially by s 7 and s 8(3). Those entitlements to improve flows in the Snowy River must not be used to offset back trade; entitlements to improve River Murray flows are counted as existing entitlement below the Choke and likewise excluded from offsetting back trade. Holders or managers of these environmental entitlements have consequential effects on the allocation account and entitlement records maintained by the Authority.

Ministerial Council. Section 11(2) prevents transfers into or out of the Lower Darling Valley until the Ministerial Council resolves otherwise. Thus the Ministerial Council retains an intergovernmental decision point for entitlement transfers into or out of the Lower Darling, though allocations may still move subject to Menindee operational control and the Authority’s tests (s 11(3)).

Third parties and local water users. The Protocol explicitly requires that New South Wales, if it permits transfers when Menindee Lakes Storage is under NSW control, must identify that there would be no significant impact to third parties as a result of allocation transfers (s 11(4)(b)). This signals that third parties , for example downstream water users, towns drawing from Menindee or riverine communities , can be affected and must be considered in NSW determinations under s 11(4).

Administrative bodies and data providers. Approval authorities and water authorities are required to advise the Authority of volumes used pursuant to allocations entered in an entitlement record (s 10(2)). That creates obligations on local water authorities and data collection systems to supply timely, accurate usage data to allow the Authority to maintain the allocation account and make timely advisories.

In sum, the Protocol affects water market participants by restricting eligible counterparties and adding documentation, notification and approval steps for certain transfers; it imposes ongoing operational and record‑keeping duties on the Basin Authority and approval authorities; and it engages State and intergovernmental actors where hydraulic system control thresholds are reached.

This section maps the principal operational duties and the substantive rights the Protocol creates or preserves, with citations to the controlling provisions.

Rights of transfer within permitted topology (s 4; s 6; Table 1). Persons diverting or using water in a trading zone have the right to transfer entitlements or allocations only to the trading zones identified in column 2 of the applicable Table 1 item and to receive transfers only from the zones listed in column 3 of that item (s 6(1)). The right to trade therefore exists only along prescribed routes. Where a target trading zone is annotated “back trade only” or “conditional”, that right is further limited to back trade (for exchange rate but not tagged trade) or subject to conditions imposed by the licensing authority respectively (s 6(2)-(3)).

State approval authority duties (s 6(5)). A State Contracting Government must ensure licensing authorities within the State do not approve transfers unless transfers comply with s 6 (s 6(5)(a)). Licensing authorities must also not refuse to approve transfers that comply with s 6 unless the reasons for refusal are outside the scope of this Protocol (s 6(5)(b)). Thus licensing authorities are duty bound to apply the Protocol’s mapping rules and are constrained in refusing compliant trades.

Authority record‑keeping and accounting duties (s 8). The Authority must establish and maintain an entitlement record for transfers from below to above the Choke on or after 1 July 2007 and an allocation account setting out specified net volumes (s 8(2)). It must add to the entitlement record every water entitlement transferred from below to above the Choke on or after 1 July 2007 and remove entitlements when they are transferred back above to below the Choke (s 8(4)). The allocation account must be set to zero on 1 July each year and be adjusted upward or downward by specified uses and transfers (s 8(5)). The Authority therefore has an ongoing operational obligation to maintain accurate, time‑sensitive records and to interpret incoming transfer events for accounting purposes.

Approval authority notification and coordination duties with the Authority (s 10). If an approval authority approves transfer of a water entitlement or allocation from below to above the Choke, it must promptly advise the Authority (s 10(1)). Water authorities must promptly advise the Authority of the volume of water used under allocations entered in an entitlement record (s 10(2)). Before approving any back trade of an allocation from above to below the Choke, the transferor’s authority must advise the Authority of the proposed transfer (s 10(3)). The Authority must then promptly advise the approval authority whether the proposed transfer may be approved (s 10(4)). If the Authority advises that a transfer may not be approved, the approval authority must refuse to approve the transfer (s 10(5)). If the Authority advises approval is possible, it must promptly adjust records and the approval authority must notify the Authority within 7 days if the transfer is approved; absent such notification, the Authority reverses the adjustments and the approval authority must refuse (s 10(6)-(8)).

Exceptional Authority discretion (s 9). The Authority, after consulting the Committee, may determine that allocations may be transferred from above to below the Choke in a given year where it estimates allocations will significantly reduce usual channel constraints at the Choke; it may set the period, the total volume and conditions for such transfers (s 9). This grants the Authority discretionary power to permit transfers that would otherwise be constrained by the allocation accounting rules.

Lower Darling tests and Ministerial Council role (s 11). The Protocol creates duties for the Authority to determine whether Menindee Lakes Storage is under Authority or New South Wales control based on volume thresholds (s 11(1), note). Until the Ministerial Council resolves otherwise, entitlements may not be transferred into or out of the Lower Darling (s 11(2)). Allocations may be transferred when Menindee Lakes Storage is under Authority control if the Authority considers there is sufficient volume to satisfy the transfer, previously approved transfers, and evaporative losses, and that the transfer will be called out before the volume falls to 480 000 ML (s 11(3)). When the Lakes are under NSW control, transfers may only occur if NSW, in consultation with the Authority and the Committee, allows allocations to be transferred and identifies no significant third‑party impacts or adverse impacts on State water entitlements (s 11(4)).

Special treatment of Snowy Deed environmental entitlements (s 7; s 8(3)). Environmental water entitlements derived from water savings made downstream of the Choke before 1 July 2007 for Snowy Water Enquiry Deed purposes must be accounted for so certain volumes cannot be used to offset back trade (s 7(1)). Section 8(3) defines how such entitlements are included or excluded in the entitlement record. Holders and managers of those environmental entitlements thus have protected accounting labels affecting offset availability.

Operational consequences for approval authorities (s 10(5), (8)). Approval authorities must refuse a proposed transfer if the Authority advises it may not be approved (s 10(5)). If the approval authority fails to notify the Authority within 7 days of approval after the Authority’s positive advice, the Authority reverses its adjustments and the approval authority must refuse the transfer (s 10(8)). Those procedural duties create deadlines and direct consequences for failure to follow the Authority’s rules.

Overall, the Protocol combines substantive transfer rights constrained by a prescriptive trading map, and administrative duties focused on record keeping, notification and mutual intergovernmental cooperation. Rights to trade are conditional upon compliance with Table 1 routes, the allocation accounting regime for the Choke, Menindee control thresholds for the Lower Darling, and the Authority’s advisory decisions.

The Protocol itself sets out procedural requirements and refusal obligations, but it does not create standalone criminal penalties or specify fines within its text. Enforcement and refusals are effected primarily through administrative mechanisms and the duties it imposes on approval authorities and the Authority.

Administrative enforcement via approval authorities (s 6(5); s 10). Licensing authorities are required not to approve transfers unless they comply with s 6 and must not refuse transfers that do comply except for reasons outside the Protocol’s scope (s 6(5)). The Authority’s role in advising approval authorities whether proposed back trades may be approved (s 10(4)) creates a mandatory administrative enforcement mechanism: if the Authority advises a transfer may not be approved, the approval authority must refuse (s 10(5)). Conversely, if the Authority confirms a transfer may be approved, the Authority must adjust the entitlement record and allocation account and the approval authority must act on that basis (s 10(6)-(7)). The Protocol therefore enforces compliance by making approval authorities’ hands contingent on the Authority’s accounting and advice functions rather than by direct penal sanction in the Protocol text.

Record‑keeping adjustments and reversals (s 8(4); s 10(6)-(8)). The Authority’s ability to add or remove entitlements from the entitlement record and to adjust the allocation account (s 8(4)-(5)) functions as an enforcement lever. If an approval authority fails to notify the Authority within 7 days that it has approved a transfer after positive advice, the Authority must reverse its adjustments and the approval authority must refuse approval (s 10(8)). That reversal is an operational enforcement step: it rescinds the administrative recognition of a transfer and compels the approval authority to refuse, which may prevent the trade from being given effect in downstream water accounting.

Intergovernmental controls (s 11(2)-(4)). For the Lower Darling, the Protocol prevents entitlements transfer until the Ministerial Council resolves otherwise (s 11(2)), placing enforcement in the realm of intergovernmental decision‑making. When the Menindee Lakes are under NSW control, the protocol requires NSW to consult and identify that transfers will not significantly impact third parties or State entitlements before permitting transfers (s 11(4)); the Protocol thereby conditions transfer permissibility upon affirmative interjurisdictional findings, which can function as de facto prohibitions enforced by state decision‑makers.

No expressed civil penalty or criminal offence in Protocol text. The Protocol does not itself provide for specified monetary penalties, infringement notices or criminal offences for non‑compliance in the sections provided. Enforcement therefore appears to be executed through refusal of approvals, record reversals, and intergovernmental gatekeeping rather than through direct sanctions embedded in the Protocol. However, the Protocol operates under the Water Act 2007 and the Agreement; other enforcement mechanisms, offences or penalties under those instruments or State water laws may apply where approval authorities, water users, or others contravene statutory obligations. The Protocol’s s 5 note explicitly points to definitions and instruments in the Act that are relevant; readers should consult the Act and State licensing regimes for express penalty provisions that may apply where the Protocol is not observed.

Potential consequences for approval authorities’ non‑observance (s 6(5); s 10(8)). The Protocol places procedural duties on approval authorities and makes certain outcomes (for example, refusal to approve a transfer) mandatory when the Authority advises negatively (s 10(5)). There is an implicit enforcement consequence where an approval authority fails to act in accordance with the Protocol: the Authority can reverse entries and require the approval authority to refuse (s 10(8)(a)-(b)). The Protocol thus contains mechanisms to nullify or reverse administrative recognition of transfers that are not executed in conformity with the communication and timing rules.

In sum, enforcement under this Protocol is administrative and operational, driven by mandatory notification, accounting and refusal rules rather than by express in‑text penalties. The Protocol delegates enforcement to approval authorities and the Authority, backed by the Authority’s control of entitlement records and the allocation account and by intergovernmental decision points such as the Ministerial Council for Lower Darling entitlements.

The Protocol is made under clause 6 of Schedule D to the Murray‑Darling Basin Agreement and s 18E of the Water Act 2007 (see s 1 note and s 5 definition of Act). It therefore sits within a nested legal framework: the Murray‑Darling Basin Agreement, the Water Act 2007 at the Commonwealth level, and State licensing and water law regimes that give effect to approvals and entitlements.

Primary legislative source linkages. The Protocol is expressly a Schedule D Protocol to the Murray‑Darling Basin Agreement (s 1 note). It operates as an instrument dealing with matters referred to in paragraph 6(1)(e) of Schedule D to the Agreement (s 1 note). The Water Act 2007 provides definitions and overarching institutional architecture that the Protocol uses: s 5 notes that several words and expressions used in the Protocol have the meaning given by the Act, including Authority, Committee, exchange rate trade and tagged trade. That means the Protocol relies on the Act for institutional definitions and certain trade forms; legal obligations and enforcement ultimately intersect with the Act’s machinery.

State licensing laws and approval authorities. The Protocol depends on State licensing or water authorities to implement the transfer approvals and to perform notification duties (s 6(5); s 10(1)-(3)). Approval authorities under State law remain the agencies that authorise transfers, but the Protocol conditions those approvals on compliance with the Protocol and on coordination with the Basin Authority for certain transfers. Therefore, State legislative instruments that grant licensing and approval powers must be read alongside the Protocol to determine the full suite of duties and potential penalties applicable to licencing authorities and water users. The Protocol requires State Contracting Governments to ensure their licensing authorities comply with s 6(5), creating a legal expectation of State legislative and administrative alignment.

Snowy Water Enquiry Deed. The Protocol treats environmental water entitlements derived from Snowy Water Enquiry Deed water savings as a distinct category for cross‑Choke accounting and offset purposes (s 7; s 8(3)). The Protocol therefore interacts with the Snowy Deed and any implementing instruments or deeds that created those environmental entitlements, specifying that certain Snowy‑derived volumes must be accounted for or excluded as described. Legal rights and constraints embedded in the Snowy Deed remain operative, but the Protocol further prescribes how those entitlements are counted for Choke accounting.

Schedule D and subclause references. The Protocol cross‑references other parts of Schedule D; for example, note to s 11 refers to subclause 13(3) of Schedule D to the Agreement. Those references indicate that obligations and prohibitions in Schedule D may alter or complement Protocol terms, so the Protocol must be read alongside Schedule D’s provisions to understand fully the interjurisdictional governance of entitlement transfers.

Potential interaction with State and Commonwealth enforcement regimes. While the Protocol itself provides administrative enforcement mechanisms, it does not specify civil or criminal penalties. Non‑compliance with approval or licensing conditions may therefore attract penalties under State water legislation or, where applicable, under the Water Act 2007. The Protocol’s mandatory refusal pathways (s 10(5)) and record adjustments (s 10(6)-(8)) will determine the administrative legality of transfers, while separate offences and sanctions in State or Commonwealth law may determine sanctions for conduct outside the Protocol’s permitted procedures.

Operational coordination and data flows. Section 10(2) requires the relevant water authority for a district in which water is used pursuant to an allocation entered in an entitlement record to promptly advise the Authority of volumes used under that allocation. This creates a practical intersection with obligations under State data reporting systems, licence conditions and water accounting rules established under State laws or Basin regulations. Failure to report or misreport may have legal consequences under those instruments even where the Protocol itself does not specify a penalty.

Intergovernmental decision points. The Protocol embeds the Ministerial Council (s 11(2)) and consultation with the Committee (s 9; s 11(4)) into its mechanism for transfers into or out of the Lower Darling and for exceptional Choke transfers. These are not statutory courts but political and governance bodies created under the Agreement and the Act; their determinations will affect the legal permissibility of transfers and may be implemented via State approval processes.

In practice, any legal analysis of a proposed transfer must read the Protocol together with: the Murray‑Darling Basin Agreement, relevant provisions of the Water Act 2007 (for definitions, institutional powers and potential sanctions), the Snowy Water Enquiry Deed where environmental entitlements are involved, the relevant State licensing and approvals framework, and the procedural rules governing the Basin Authority and Committee. The Protocol supplies binding routing and accounting rules that sit inside this broader legal and institutional architecture.

This compilation states it is Compilation No. 1 and shows the text as amended and in force on 19 June 2025. The endnotes in the compilation record the amendment and legislation history that has affected the Protocol.

Original registration and commencement. The Protocol was registered on 14 September 2010 (F2010L02466) and commenced on 15 September 2010 (s 2), according to Endnote 3. It was originally made in 2010 as the Murray‑Darling Basin Agreement (Schedule D , Permissible Transfers between Trading Zones) Protocol 2010.

Subsequent amendment recorded in compilation. The compilation includes an amendment: Murray‑Darling Basin Agreement (Schedule D , Permissible Transfers between Trading Zones) Amendment (ACT Trading Zone) Protocol 2025. That instrument is registered 18 June 2025 (F2025L00696) and commenced on 19 June 2025 (s 2), per Endnote 3. The compilation date is 19 June 2025 and the compilation includes amendments F2025L00696 (cover note). Endnote 4 identifies that s 6 was amended by F2025L00696 (see the table in Endnote 4: “s 6 , am F2025L00696”).

Other textual adjustments. Endnote 4 also records that s 2 was repealed (rep LA s 48D). That appears to be an editorial or legislative housekeeping amendment reflecting the Legislation Act 2003, rather than a substantive change to the Protocol’s trade mapping or mechanics. The compilation’s “About this compilation” note remarks that uncommenced amendments will not be shown and that any modifications made by another law operate as modified though the compilation may not display the modifications.

Revocation provision. Section 3 of the Protocol expressly revokes all previous protocols made under paragraph 6(1)(e) of Schedule D to the Agreement. That means that the 2010 Protocol was intended to replace prior protocols in its field at the time of original commencement.

How to track further amendments. The endnotes state that for more information on any uncommenced amendments or modifications, users should consult the Register at www.legislation.gov.au. The compilation includes an amendment history table but users seeking changes after the compilation date should check the Register for subsequent instruments and commencement details.

Practical implication of the 2025 amendment. The only provision explicitly shown as amended in Endnote 4 is s 6. That provision governs the permitted transfers between trading zones and contains the Table 1 mapping. Any amendment to s 6 therefore directly affects the topology of permitted transfers and the “back trade only” and “conditional” annotations. Users must consult the Register or the amending instrument F2025L00696 to see the specific alterations to Table 1 or accompanying text and to determine the practical consequences for permitted routes and restrictions in the ACT trading zone context referenced by the amending instrument’s title.

Summary. The Protocol has been in force since 2010 and was amended in 2025 (F2025L00696), with s 6 identified as having been amended. Section 2 has been repealed in accordance with the Legislation Act 2003. For any transactional or compliance work after the compilation date, parties should consult the consolidated instrument on the Register to capture any further amendments, commencements, or uncommenced provisions.

The compilation contains no entries identifying judicial or tribunal decisions interpreting or applying this Protocol. The Protocol’s text names only the Snowy Water Enquiry Deed and refers to subclauses of Schedule D to the Agreement; it does not list court cases. Endnote 3 records the registration and commencement of the Protocol and a 2025 amendment, and Endnote 4 records provision‑level amendments, but neither endnote records litigation.

Because the Protocol interacts closely with State licensing laws, the Water Act 2007, and the Murray‑Darling Basin Agreement, litigation that affects the Protocol’s operation may reside in cases dealing with those instruments or specific State transfer approvals. The compilation does not include any case citations or summaries. Users seeking precedent, judicial interpretation of the Protocol’s terms (for example, disputes over the meaning of “back trade”, the Authority’s advice functions, or the effect of the allocation account) should search Commonwealth and State judicial databases and the Register for cases after the compilation date.

Absent case law in the compilation, administrative decisions and intergovernmental determinations (for example decisions by the Authority, Committee minutes, or Ministerial Council resolutions) are likely to shape practice significantly. The Protocol embeds many operational judgments (for example the Authority’s estimation under s 9 and the Authority’s consideration under s 11(3)); these administrative decisions may be subject to merits review or judicial review under applicable review regimes, but no such reviews are recorded in the compiled text.

Practitioners should therefore treat the litigation status as: no recorded litigation provided in the consolidated instrument; interpretive and enforcement questions may arise in administrative law forums; and review of the Authority’s discretionary decisions (for example under s 9 or s 11) could be the likeliest route for judicial engagement, subject to any privative clauses or review limitations in the Agreement or the Water Act 2007. Confirmatory searches in legal databases and the Register are recommended to discover any post‑compilation litigation or administrative rulings.

This Protocol contains several technical features and procedural dependencies that can create traps for practitioners and rights‑holders if not carefully managed.

Trading topology constraints (s 6; Table 1). The Table in s 6 prescribes permitted origin and destination zones; transferring to any zone not listed for the source is not permitted under the Protocol. Some entries are annotated “back trade only” or “conditional”. “Back trade only” restricts transfers into or out of the zone to back trade, meaning exchange‑rate but not tagged trade, and only up to the net volume of preceding transfers in the opposite direction and subject to valley account availability (s 5 definition of back trade; s 6(2)). Failure to check the specific row and annotations in Table 1 is an obvious operational pitfall.

Differential treatment of tagged trade (s 6(2); s 5). Where a zone is “back trade only” the Protocol explicitly disallows tagged trade into that zone (s 6(2) , “by exchange rate but not by tag trade”) for those directions. Parties accustomed to using tags for cross‑valley trades must ensure the trade form is permitted for the route or risk refusal.

Independence of subsections (s 6(4)). Section 6(4) states subsections (1), (2) and (3) are “separate and independent and are not to be read down by reference to any of the others”. Practically, this means the existence of a condition in one subsection does not limit the operation of the others. Misreading the provisions as hierarchical or as providing fallback rights may lead to misguided transfer attempts.

Choke accounting complexity and timing (s 7-8; s 10). The allocation account is set to zero each 1 July (s 8(5)(a)) and adjusted by water used under entitlements entered in the entitlement record and transfers into or proposed transfers out of the Choke (s 8(5)(b)-(d)). Approval authorities must notify the Authority when transfers occur from below to above the Choke (s 10(1)) and must advise the Authority before approving back trade from above to below the Choke (s 10(3)). If the Authority advises that a proposed transfer may not be approved, the approval authority must refuse (s 10(5)). If the approval authority fails to notify the Authority within 7 days after positive advice that the transfer is approved, the Authority must reverse its adjustments and the approval authority must refuse to approve the transfer (s 10(8)). These time‑sensitive steps can result in unintended reversals or forced refusals where communication protocols or internal decision timelines are not robust.

Snowy Water Enquiry Deed entitlements exclusions (s 7; s 8(3)). Environmental water entitlements derived from savings downstream of the Choke under the Snowy Deed are treated specially: some must not be used to offset back trade (s 7(1)(a)-(b)), and s 8(3) specifies which Snowy‑derived entitlements are included in the entitlement record and which are excluded. Parties relying on such environmental entitlements must ensure their treatment in the Authority’s records aligns with the Protocol; misclassification may produce incorrect allocation account balances and erroneous refusals.

Menindee Lakes control thresholds and Ministerial Council lock (s 11(1)-(4)). Menindee Lakes Storage is “under Authority control” only during the specified regime: after falling to 480 000 ML, when the volume has exceeded 640 000 ML and not again fallen to 480 000 ML (s 11(1)(a)), otherwise it is under NSW control after falling below 480 000 ML and not yet exceeding 640 000 ML (s 11(1)(b)). Entitlements may not be transferred into or out of the Lower Darling until the Ministerial Council resolves otherwise (s 11(2)). If the Lakes are under NSW control, transfers can occur only if NSW, after consulting the Authority and the Committee, has determined to allow transfers and has identified no significant third‑party impacts or adverse effects on State entitlements (s 11(4)). The specific numeric thresholds create sharp on/off operational regimes that can block transfers; failing to track these volumes and the intergovernmental decision state is a major operational risk.

Allocation account negative balance gating (s 8(6)). Subsection 8(6) states subsection 10(4) applies to any proposed transfer referred to in s 8(5)(d) if the transfer would result in a negative balance in the allocation account. In plain terms, proposed transfers that would drive the allocation account negative trigger the Authority’s advisory function under s 10(4), which can lead to a refusal. Parties must therefore check the allocation account position before attempting to trade down across the Choke.

Authority’s discretionary exceptional power (s 9). The Authority may, after consulting the Committee, permit transfers from above to below the Choke if it estimates allocations will significantly reduce usual constraints at the Choke and may set period, volume and conditions (s 9). Relying on this as a predictable path to trade acceptance is risky because the Authority’s power is discretionary and conditional on consultation and the Authority’s estimation.

Notification and information flows (s 10(2)). The relevant water authority for a district using water under an allocation entered in an entitlement record must promptly advise the Authority of volumes used (s 10(2)). Lagging or inaccurate usage reporting can distort the allocation account and therefore affect future approvals and the Authority’s advice.

Interplay with State law and the Water Act 2007 (s 5 note). The Protocol references and depends on definitions and institutional arrangements in the Act. Practitioners must not treat the Protocol in isolation but must check State licensing conditions, the Water Act and the Agreement for complementary obligations, remedies and penalties.

Amendment to s 6 in 2025 (Endnote 4). The compilation records an amendment to s 6 (Endnote 4: “s 6 , am F2025L00696”). This means the trading map or conditions in Table 1 may have changed in 2025; practitioners must verify they are using the updated Table 1 in any supply chain or contract documentation.

Operational consequence of missing the 7‑day notice (s 10(7)-(8)). If an approval authority does not notify the Authority within 7 days after the date of the Authority’s positive advice that the proposed transfer is approved, the Authority must reverse its adjustments and the approval authority must refuse the transfer (s 10(8)). Approvals that are not communicated promptly can be unwound administratively.

In short, the primary “gotchas” are: (1) the detailed trading map and back trade/tags exclusions that change permissible trade forms; (2) the Choke accounting which can bar trades if the allocation account would go negative; (3) the time‑sensitive notification and communication steps with the Authority, including the 7‑day rule; (4) the Menindee volume thresholds and Ministerial Council lock for Lower Darling entitlements; and (5) special accounting labels for Snowy Deed environmental entitlements. Each of these can cause a transfer to be refused or reversed if not correctly anticipated and managed.

Compliance under this Protocol requires procedural discipline, record verification, interagency coordination and pre‑trade checks because substantive permissibility and the Authority’s accounting position govern approval outcomes. Below is a practical compliance checklist mapped to Protocol provisions.

1. Determine transfer form and applicability (s 4). Confirm the proposed transaction is an allocation transfer, an exchange rate trade, or a tagged trade, as those are the transfer forms to which the Protocol applies (s 4). Where the transfer form is a tagged trade, check whether the route permits tagged trade: many “back trade only” entries disallow tagged trade (s 6(2)).

2. Identify origin and destination trading zones in Table 1 (s 6; Table 1). Use the precise trading zone description in column 1 and the matching permitted destination column 2 (and permitted origins column 3 for receiving a transfer). Verify whether the intended destination is listed and whether it is annotated “back trade only” or “conditional” (s 6(1)-(3)). If the intended route is not listed, the transfer is not permitted under the Protocol.

3. For “back trade only” routes, confirm eligibility and limits (s 5 back trade definition; s 6(2)). Back trade volume is limited to being no greater than the net volume of preceding transfers in the opposite direction and available valley account volume. Check recent transfer history between the two trading zones and the relevant valley account availability before preparing the transfer documents.

4. Check for conditional routes and licensing authority conditions (s 6(3)). If the destination or origin is marked “conditional”, contact the relevant licensing authority to determine the conditions it imposes. Ensure the transfer proposal satisfies those conditions before seeking approval.

5. If transfer crosses the Barmah Choke, engage the Authority early and verify entitlement records and allocation account position (s 7-8; s 10). Before submitting a transfer that would come from below to above the Choke or be a back trade from above to below, obtain current information from the Authority about (a) whether the entitlements have been entered in the entitlement record (s 8(4)), and (b) the allocation account balance (s 8(5)). Approval authorities must promptly advise the Authority when approving transfers from below to above the Choke (s 10(1)), and must advise the Authority of proposed back trades before approving them (s 10(3)).

6. Avoid triggering a negative allocation account without coordination (s 8(5)(d); s 8(6); s 10(4)). Any proposed transfer that would make the allocation account negative triggers the Authority’s advisory mechanism under s 10(4). Seek an Authority determination or clearance before proceeding and be prepared for refusal if the Account would go negative.

7. Follow notification timelines to the letter (s 10(6)-(8)). If the Authority advises a transfer may be approved and the approval authority approves it, the approval authority must notify the Authority within 7 days after the date of the Authority’s advice (s 10(7)). Failure to notify within 7 days will cause the Authority to reverse adjustments and require the approval authority to refuse the transfer (s 10(8)). Parties should build these timeframes into transaction timetables and ensure internal approval procedures are coordinated to meet the 7‑day window.

8. For transfers involving Snowy Water Enquiry Deed environmental entitlements, confirm accounting classification (s 7; s 8(3)). If environmental entitlements derived from water savings downstream of the Choke are involved, clarify whether they are to be used for Snowy River flows or River Murray flows. Those volumes are treated differently for offsetting back trade and for entry in the entitlement record (s 7(1); s 8(3)).

9. For Lower Darling transfers, monitor Menindee Lakes volume status and Ministerial Council resolutions (s 11(1)-(4)). Confirm whether Menindee Lakes Storage is under Authority or NSW control by comparing current storage volumes to the 480 000 ML and 640 000 ML thresholds and any accounting for previously approved transfers (s 11(1); note). Remember entitlements may not be transferred into/out of the Lower Darling until the Ministerial Council resolves otherwise (s 11(2)). If Lakes are under Authority control, the Authority must consider sufficiency of volume for the transfer and other approved transfers and evaporative losses, and whether the transfer can be called out before the level falls to 480 000 ML (s 11(3)). If under NSW control, NSW must determine to allow transfers after consultation and must identify no significant third‑party impacts or adverse impacts on State entitlements (s 11(4)). Secure requisite intergovernmental decisions where needed.

10. Integrate reporting obligations into operational systems (s 10(2)). The water authority for the district where water is used under an allocation entered in an entitlement record must promptly advise the Authority of volumes used pursuant to that allocation. Ensure meter readings, usage reporting and data transfers to the Authority are timely and accurate to avoid allocation account distortions.

11. Build contingency clauses and representations into contracts. Given the Protocol’s administrative gating and the Authority’s discretionary powers under s 9 (exceptional circumstances) and s 11 (Lower Darling), contracts should allocate risk and timing for Authority advice, possible refusals, and potential reversals due to missed notifications. Include clear obligations for parties to cooperate with approval authorities for required notifications and to bear costs of compliance steps where appropriate.

12. Verify the current legal text, including recent amendments (Endnote 4). Section 6 was amended by F2025L00696 per the compilation’s amendment history. Confirm the operative text of Table 1 and any new “conditional” or “back trade only” annotations introduced by the 2025 amendment on the Register before structuring trades.

13. Train staff and approval authority contacts on the Protocol workflow. Because the Protocol’s mechanics depend heavily on interagency notifications and tight time windows (especially the 7‑day notification rule), ensure transactional teams, compliance staff and the relevant approval authority contact are aligned on the required sequence: pre‑trade checks, Authority queries, approval authority notifications, and post‑approval recording.

14. Consider whether exceptional determinations could apply (s 9). If a desired transfer would otherwise be blocked by allocation accounting, assess whether the Authority is likely to make an exceptional determination under s 9 in the relevant water year, and plan for consultation with the Committee and evidence that allocations will reduce Choke constraints. Do not assume s 9 relief will be available; it is discretionary.

15. Maintain documentary proof of communications. Keep timestamps and records of notifications to the Authority and the approval authority, especially for transfers that involve the Choke or the Lower Darling. The Protocol’s enforcement relies on timely notifications; having contemporaneous records will reduce dispute risk if the Authority reverses entries or an approval authority must refuse.

Following these steps aligns operational practice with the Protocol’s routing, accounting and notification requirements and reduces the risk that a transfer will be administratively refused or reversed. Legal and compliance teams should tailor these steps to their State’s licensing procedures and incorporate them into trade execution protocols.