PETROLEUM (SUBMERGED LANDS) (APPLICATION OF COMMONWEALTH LAWS) REGULATIONS 2004

The Regulations are compact and built around three core concepts: prescribed instruments, disapplication/prescription of Territory laws for a definition, and textual adaptation. Each concept is expressed in one or two short provisions that together determine the legal content that applies in the Territory.

Prescribed instruments. The Regulations identify two groups of Commonwealth instruments. The first group is the Commonwealth OHS Regulations, captured in r 3 by name (the diving safety, management of safety on offshore facilities, and occupational health and safety instruments). The second group is the prescribed Commonwealth Regulations, again listed by name in r 3 (data management, datum except reg 5(4), management of environment, and pipelines). The term Commonwealth Regulations encompasses both groups (r 3). These lists determine the substantive regulatory instruments that are to operate, once applied as Territory law (r 5(2)).

Application/transposition mechanism. The main legal technique is transposition: the Regulations do not create new substantive obligations themselves; instead they make the listed Commonwealth Regulations apply in the Territory either for a specific statutory Schedule (r 5(1)) or as Territory law (r 5(2)). The Regulations then specify three classes of textual changes to harmonise references: definition alignment with the Territory Act (r 5(3)(a)), re-mapping references from the Commonwealth Petroleum (Submerged Lands) Act 1967 (Cth) to the corresponding provisions of the Territory Act (r 5(3)(b)), and substituting the Designated Authority with the Minister (r 5(3)(c)). These are the interpretive rules for the imported instruments.

Prescribing Territory laws for definition purposes. The instrument also affects how the Act defines "prescribed occupational health and safety laws". Rather than insulating operators from Territory OHS law, r 4 prescribes three identified Territory statutes to be used for the statutory definition in s 6A of the Act: Dangerous Goods Act 1998; Part 5 of the Electricity Reform Act 2000; Work Health and Safety (National Uniform Legislation) Act 2011. This is not a blanket disapplication of Territory OHS law; it is a prescription for the Act’s internal definitional architecture (r 4).

Formal provisions. The Regulations include standard formal clauses: citation (r 1), commencement tied to the Petroleum (Submerged Lands) Amendment Act 2004 (r 2), and repeal of a prior Datum instrument (r 6).

Relationship between instruments. The Regulations create layered regulatory architecture: the Northern Territory Act is the primary statutory framework; Schedule 4 to that Act is now to be read together with the Commonwealth OHS Regulations (r 5(1)); the prescribed Commonwealth Regulations apply as Territory law (r 5(2)); and selected Territory OHS statutes are prescribed for the Act’s definition of prescribed OHS laws (r 4). The textual mappings in r 5(3) are the explicit mechanism for legal coherence when substituting the Commonwealth drafting assumptions with Territory counterparts.

Operational implication. The legal effect is that obligations, duties and processes found in the named Commonwealth instruments become operative in the Territory, subject to the limited textual changes specified. The Regulations are therefore an importing and harmonising instrument rather than an instrument of primary substantive change.

The Regulations operate in the regulatory environment of petroleum activities on submerged lands within the Northern Territory. They affect three categories of actors, as identified by the text and the mechanism by which the Commonwealth instruments are applied.

Operators and duty-holders on submerged lands. The primary group affected is persons and entities conducting petroleum operations on submerged lands in the Territory. Because the prescribed Commonwealth Regulations are applied "as a law of the Territory" (r 5(2)), obligations, standards and processes found in the named Commonwealth instruments become enforceable as Territory law against operators and duty-holders to the extent they apply to submerged lands. Those instruments include workplace safety instruments (diving safety; management of safety on offshore facilities; occupational health and safety), environmental management, pipelines, datum rules (with the specified exception), and data management (r 3; r 5).

Licenced infrastructure owners and third-party contractors. Owners and controllers of pipelines, platform infrastructure, diving contractors, surveyors and data managers who engage with petroleum operations are affected because the list of applied instruments covers pipelines, diving safety, environmental management and data management (r 3). Companies that provide services or that own elements of infrastructure used for petroleum operations will need to align to the applicable Commonwealth Regulations now read as Territory law (r 5(2)).

Regulators and the Minister. The Regulations alter the way supervisory functions and references are read. For example, the Commonwealth Regulations’ references to the "Designated Authority" are to be read as references to "the Minister" in Territory law (r 5(3)(c)). This changes who is the decision-maker or official referenced in the imported instruments, and therefore affects the Northern Territory Minister’s role under the Act and the administrative processes that follow from the imported instruments. The Regulations also prescribe which Territory statutes count as the prescribed occupational health and safety laws in s 6A of the Act (r 4): this prescription will affect how the Territory treats its own OHS statutes in the context of the Act.

Legal advisers, compliance professionals and courts. Professionals advising industry are directly affected because the compliance matrix for submerged-land petroleum activity now squarely includes the listed Commonwealth instruments applied as Territory law (r 5). Courts and tribunals interpreting disputes under the Territory Act will need to treat the specified Commonwealth instruments as part of the relevant legal framework, applying the textual mapping rules in r 5(3).

Indirectly affected parties. Landowners and third-party stakeholders with interests in the coastal or marine environment are indirectly affected because the applied instruments include environmental management and data management regimes (r 3). Any duties, consultation processes or environmental protections contained in those instruments will now be part of Territory law for submerged lands (r 5(2)). The Regulations do not change who may be subject to fines or prosecutions per se; they change the sources of obligations and to whom particular references and decision-making powers are directed (r 5(3)).

No immediate change to persons outside submerged lands. The Regulations are specifically framed around the Petroleum (Submerged Lands) Act 1981 and Schedule 4 to that Act (r 5(1)), and therefore their effect is confined to the Act’s sphere: they do not purport to change general Territory civil or criminal law outside the submerged lands regime. The instrument’s reach is thus targeted to the petroleum submerged-lands regulatory context.

The Regulations do not themselves enumerate detailed duties or rights; rather they import and adapt the substantive duties and rights from the listed Commonwealth instruments into the Territory legal framework. The key practical effect is that duties and rights found in those Commonwealth instruments become operative in the Territory subject to the textual mappings prescribed.

Source of duties and rights. Under r 5(2), the prescribed Commonwealth Regulations apply as laws of the Territory. Consequently, duties in the Petroleum (Submerged Lands) (Management of Safety on Offshore Facilities) Regulations 1996 (Cth) and the Petroleum (Submerged Lands) (Occupational Health and Safety) Regulations 1993 (Cth) , such as duties to prepare safety cases, to maintain plant and equipment, to ensure the health and safety of persons on facilities, and to implement control measures , become part of the Territory’s regulatory duties for submerged lands where those instruments apply. Similarly, duties in the Petroleum (Submerged Lands) (Management of Environment) Regulations 1999 (Cth), the Petroleum (Submerged Lands) (Pipelines) Regulations 2001 (Cth), and the Data Management Regulations 2004 (Cth) are applied to the Territory (r 3; r 5(2)).

Rights and procedural protections embedded in the Commonwealth instruments, such as rights to seek review of administrative decisions where provided in those instruments, would travel with those instruments when applied as Territory law (r 5(2)). Where the Commonwealth instrument contemplates consultation, notices or submissions, those procedural mechanisms become operative in the Territory context unless changed by the textual mapping rules.

Textual adaptation and interpretation of duties. The Regulations direct how to read expressions that match definitions in the Territory Act: such expressions in the Commonwealth Regulations carry the same meaning as in the Act (r 5(3)(a)). This means that duties framed in the Commonwealth instrument will be interpreted with the Territory Act’s definitions where the expressions align. For example, if a Commonwealth regulation references a term that the Territory Act also defines, the Act’s definition governs the meaning under the applied regulation (r 5(3)(a)). That is an important detail for duty-holders because it affects the scope and target of obligations.

Re-mapping references from Commonwealth Acts. The Regulations require that references to provisions of the Petroleum (Submerged Lands) Act 1967 (Cth) be read as references to the corresponding provision of the Territory Act (r 5(3)(b)). Where a Commonwealth regulation requires an action under a particular Commonwealth Act provision, the corresponding territorial provision will be the operative reference, and rights tied to Commonwealth Act processes are to be located in the Territory Act.

Decision-maker designation. The Commonwealth Regulations’ references to the Designated Authority are to be read as references to the Minister (r 5(3)(c)). Where the Commonwealth instrument gives or limits powers, duties or discretions to the Designated Authority, those powers, duties or discretions in the Territory version will sit with the Minister. That affects how rights to decisions, variances or approvals are exercised and where administrative responsibility lies.

Territory OHS laws as definitional anchors. For the definition in s 6A of the Act, r 4 prescribes particular Territory statutes as the "prescribed occupational health and safety laws". That links the Act’s internal cross-references to specific Territory frameworks, and can influence how compliance obligations or rights under the Act are interpreted in relation to Territory OHS statutes.

No independent penalties or new private rights created here. The Regulations do not themselves create novel offence provisions, civil liabilities or discrete private rights; they rely on the substantive obligations, offences and compliance mechanisms contained in the imported Commonwealth Regulations and the Territory Act. Therefore, the practical duties and rights for regulated entities are those present in the named Commonwealth instruments and the Territory Act, read together under the adaptation rules in r 5(3).

The Regulations are an enabling and transposition instrument; they do not, on their face, establish new penalty provisions or enforcement mechanisms. The legal effect is to bring into the Territory legal instruments that themselves contain offences, penalties and enforcement mechanisms. The consequences for enforcement must therefore be located in the imported Commonwealth Regulations and in the Northern Territory Act as modified by these Regulations.

No standalone enforcement clause. The Regulations contain no separate penalty schedule or enforcement provisions. They do not, for example, alter maximum penalties or prescribe new sanctioning procedures directly in the text of the instrument. Instead, enforcement will be effected via the applied Commonwealth Regulations once they operate as Territory law under r 5(2), and via the Act (see r 5(1)-(2)).

Source of offences and sanctions. Where the Commonwealth instruments to which the Regulations refer contain offence provisions, those provisions become enforceable within the Territory regime because the instruments are applied as Territory law (r 5(2)). Examples of the types of subject-matter that commonly carry sanctions in such instruments include failures in safety management systems, breaches of environmental control requirements, requirements to keep and produce data, and pipeline safety obligations. The specific offences, penalties and enforcement processes are those contained in the relevant Commonwealth instrument as applied and as read with the textual mappings in r 5(3).

Administrative decision-making and review. The Regulations substitute the Designated Authority with the Minister for the purposes of the applied instruments (r 5(3)(c)). That substitution affects who is the relevant decision-maker for permissions, approvals, variance-granting, or directions under the applied regulations. The mechanism for administrative review, internal merits review or judicial review is not stated in the instrument itself; where the Commonwealth instrument contemplates review processes, those processes will be incorporated into the Territory context, subject to any applicable Territory administrative law and the re-mapping to the Minister or to corresponding provisions of the Act (r 5(3)(b)-(c)).

Effect on Territory OHS enforcement. The Regulations prescribe which Territory occupational health and safety laws are to be used in the Act’s definition of "prescribed occupational health and safety laws" (r 4). That may affect how enforcement under the Act is to be understood in relation to Territory OHS enforcement agencies because the Act’s own references to prescribed OHS laws will point to the named Territory statutes. The instrument does not itself change enforcement powers in those Territory statutes; it clarifies definitional relationships for the Act.

Practical enforcement implication. Regulators and enforcement agencies operating under the Act will rely on the substantive provisions and sanctioning mechanisms of the imported Commonwealth Regulations and the Territory Act. Because the Regulations specify textual adaptations (r 5(3)), enforcement will proceed under the Territory Act’s language and decision-makers rather than the Commonwealth Act and its Designated Authority.

No express saving or transitional enforcement arrangements. The Regulations do not set out transitional enforcement or saving provisions beyond the repeal of the earlier Datum Regulations (r 6), and they commence on the cited commencement of the Petroleum (Submerged Lands) Amendment Act 2004 (r 2). Where enforcement questions arise about actions taken before commencement, the instrument does not provide express guidance within its text.

The Regulations are expressly interactional: they create legal cross-linkages between the Northern Territory Petroleum (Submerged Lands) Act 1981, selected Commonwealth petroleum instruments, and specific Territory statutes. The instrument achieves this through prescription, cross-references and specified textual conversions (rr 3-5). The following concrete interactions are established by the text.

Importation and territorial application. The prescribed Commonwealth Regulations are applied "as a law of the Territory" (r 5(2)). That means those Commonwealth instruments operate within the Territory legal order for submerged lands without requiring separate reproduction. Where the Commonwealth regulation makes reference to a Commonwealth Act, r 5(3)(b) instructs that reference to be read as the corresponding provision of the Territory Act. Therefore, the Commonwealth instrument’s operational links to Commonwealth statute are re-directed to the Territory Act.

Schedule 4 to the Act. For the definition of "regulations" in Schedule 4 to the Act, the Commonwealth OHS Regulations are to apply, with necessary changes, for that Schedule (r 5(1)). This ties Schedule 4’s regulatory reach to those named Commonwealth OHS instruments. The Regulations therefore modify how Schedule 4 is to be read, but they do not change Schedule 4’s text themselves; rather, they modify the statutory matrix around it by identifying applicable instruments.

Definitional alignment. Where an expression in the Commonwealth Regulations is identical to an expression defined in the Territory Act, r 5(3)(a) requires that the expression be given the same meaning as in the Act. This creates interpretive precedence: the Act’s definitions govern the imported instruments when terminology overlaps. Consequently, rights, duties and thresholds that depend on defined terms will be read consistently with the Act’s definitional choices.

Substitution of decision-making authority. The Regulations direct that references to the Designated Authority in Commonwealth Regulations are to be read as references to the Minister (r 5(3)(c)). That interaction has administrative consequences: where the Commonwealth regulation contemplates a power or function vested in a Designated Authority, the Northern Territory Minister becomes the vesting point for that power under the applied instrument. This re-mapping therefore integrates the decision-making architecture into the Territory ministerial and administrative framework.

Prescribing Territory OHS statutes for the Act’s definition. For the definition of prescribed occupational health and safety laws in s 6A of the Act, r 4 prescribes three Territory enactments: the Dangerous Goods Act 1998; Part 5 of the Electricity Reform Act 2000; and the Work Health and Safety (National Uniform Legislation) Act 2011. This is a specific cross-reference: the Act will take those Territory statutes as the basis for what counts as prescribed OHS laws under s 6A. That affects how obligations under the Act are matched to Territory OHS law when the Act invokes that definition.

Repeal and supersession. The Regulations repeal the Petroleum (Submerged Lands) (Datum) Regulations (Regulations 2003, No. 7) (r 6). This is a formal interaction as it removes an earlier Territory instrument dealing with datum and replaces it with the application of the Commonwealth Datum Regulations (2002) except for reg 5(4) (r 3). The net effect is to synchronise Territory datum rules with the specified Commonwealth instrument, subject to the stated exception.

Commencement alignment. The Regulations commence on the commencement of the Petroleum (Submerged Lands) Amendment Act 2004 (r 2). The endnotes record practical commencement and notification dates; those dates control when these cross-interactions take legal effect (Endnotes).

No override of unrelated Territory law. The Regulations apply narrowly to the submerged-lands petroleum regulatory field. They do not purport to displace Territory law outside the Act’s ambit. The mechanism is one of incorporation by reference with textual mapping, so interactions are intentionally limited to the contexts where the Act and Schedule 4 operate.

Practical consequence for legal interpretation. When a court, tribunal or regulator interprets obligations under the applied Commonwealth Regulations, the reading will be filtered through the Territory Act’s definitions and the Ministerial substitution. The imported instruments will not be read in isolation: r 5(3) mandates interpretive alignment. The Regulations therefore create a series of obligatory conversions to ensure that the Commonwealth drafting assumptions fit the Territory legal structure.

The instrument’s endnotes set out its formal amendment history and associated commencement details; the Regulations themselves were made under the Petroleum (Submerged Lands) Act 1981. The relevant amendment events recorded in the text and endnotes are as follows.

Original notification and commencement. The Regulations were notified as Petroleum (Submerged Lands) (Application of Commonwealth Laws) Regulations (SL No. 41, 2004) and were notified on 22 December 2004. They commenced on 1 January 2005, aligned to the commencement of the Petroleum (Submerged Lands) Amendment Act 2004; r 2 states the commencement link, and the endnotes record the Gazette and commencement dates.

Subsequent Acts with amendment effect. The endnotes list subsequent legislation that amended or interacted with the Regulations. The Law Reform (Work Health) Amendment Act 2007 (Act No. 30, 2007) is recorded with assent date 12 December 2007 and commencement 1 July 2008; the Petroleum Amendment and Related Matters Act 2010 (Act No. 13, 2010) has assent 20 May 2010 and commencement 1 July 2010; the Work Health and Safety (National Uniform Legislation) Implementation Act 2011 (Act No. 38, 2011) has assent 14 December 2011 and commencement 1 January 2012; and the Statute Law Revision Act 2017 (Act No. 4, 2017) has assent 10 March 2017 and commencement 12 April 2017. The endnotes indicate that r 4 was amended by Act No. 30, 2007, s 59; Act No. 13, 2010, s 17; Act No. 38, 2011, s 31; and Act No. 4, 2017, s 34 (List of amendments, Endnotes). Those amendments reflect changes to the prescription of Territory occupational health and safety laws for the definition in s 6A of the Act.

Formal reprints and interpretation amendments. The endnotes state that general amendments of a formal nature were made by the Interpretation Legislation Amendment Act 2018 (Act No. 22, 2018) to rr 1 and 4, described as amendments of a formal nature (Endnotes, pt 3). These are cataloguing or formatting adjustments rather than substantive policy changes as described in the endnote.

Repeal of previous Datum Regulations. The Regulations themselves repeal the Petroleum (Submerged Lands) (Datum) Regulations (Regulations 2003, No. 7) (r 6). This is recorded as a formal repeal in r 6 and is part of the instrument’s initial operation.

Practical implications of amendments. The list of amending Acts identified in the endnotes is important for operators because r 4’s list of prescribed Territory occupational health and safety laws changed across those amending Acts. The 2011 enactment bringing in the Work Health and Safety (National Uniform Legislation) Act 2011 as a prescribed law is explicitly reflected in r 4(c), and the endnotes confirm the timing of the 2011 Act’s commencement. The Statute Law Revision Act 2017 is recorded as amending r 4 and came into force 12 April 2017 (Endnotes).

No further amendment activity recorded within the instrument. The endnotes provide the register of amendments up to the Statute Law Revision Act 2017 and the Interpretation Legislation Amendment Act 2018. There is no internal list of later amendments in the instrument text provided here beyond those endnotes entries.

The Regulations’ text and the supplied endnotes do not record any cases, judgments or litigation outcomes that interpret or apply the Regulations themselves. The instrument does not list or cite judicial decisions, and the endnotes catalogue only legislative amendment events.

Implication for research. Because there are no cases referenced in the Regulations or endnotes, any litigation history must be established from external sources (court databases, law reports or tribunal decisions). The instrument itself contains no record of disputes, judicial interpretations or enforcement litigation under these Regulations.

Where litigation would arise. If disputes or prosecutions occur under the regulatory framework created by these Regulations, they will typically be based on the substantive provisions of the Commonwealth instruments as applied by r 5(2) and on the Territory Act. Litigated issues are likely to raise questions about the interpretive mappings in r 5(3) (for example, whether a Commonwealth reference to a provision of the Commonwealth Act has been correctly transposed to the corresponding Territory provision, or whether the Minister is properly the decision-maker in place of the Designated Authority). However, the Regulations do not report or list any precedent addressing these points.

No recorded appeals, reviews or precedent elucidation here. The absence of litigation entries in the provided text means the Regulations’ precise legal contours , for instance, how strictly courts would enforce the textual mappings in r 5(3), or how they would treat the prescription of Territory OHS statutes in r 4 , are not evident from the instrument as provided. Any authoritative answers on those legal questions would require checking court or tribunal decisions outside the text of these Regulations.

Practical note for parties. Practitioners preparing for potential litigation should bear in mind that the substantive provisions to be litigated will be the Commonwealth instruments (as applied) and the Territory Act; interpretation issues will arise at the interface, guided by r 5(3). Because the Regulations do not themselves set penalties or procedural review mechanisms, any litigation will involve the enforcement and review mechanisms contained in the applied instruments and in the Territory Act.

This short instrument contains several detail-sensitive features that can produce practical pitfalls if overlooked. The following points are grounded in the text and identify concrete areas where compliance, interpretation or administrative practice can be tripped up.

Imported instruments are applied with "necessary changes" but only three changes are specified. The Regulations state that the Commonwealth OHS Regulations apply "with the necessary changes" for Schedule 4 (r 5(1)), and that the prescribed Commonwealth Regulations apply "with the necessary changes" as Territory law (r 5(2)). However, r 5(3) specifies only three types of changes: definitions aligned to the Act (r 5(3)(a)), references to the Commonwealth Petroleum (Submerged Lands) Act 1967 mapped to corresponding provisions of the Territory Act (r 5(3)(b)), and substitution of Designated Authority with Minister (r 5(3)(c)). Practitioners should not assume that other non-specified drafting mismatches are auto-corrected; the instrument limits the express conversions available and leaves any further accommodation to interpretation or other legislative instruments.

Datum Regulations excepted by a single subregulation. The prescribed Commonwealth Regulations include the Petroleum (Submerged Lands) (Datum) Regulations 2002 (Cth) "other than regulation 5(4)" (r 3(b)). The exclusion of reg 5(4) means that a specific part of the Commonwealth Datum instrument does not apply in the Territory. Parties must therefore verify which datum matters are governed by the applied Commonwealth Datum Regulations and which are not, and seek local guidance for the effect of the excluded provision. The Regulation does not set out why reg 5(4) is excluded, so the operational consequence will depend on how that subregulation interacts with other datum rules in the Territory.

Designated Authority to Minister substitution can alter administrative practice. References to the Designated Authority in Commonwealth instruments are re-read as references to the Minister (r 5(3)(c)). That substitution can change who is vested with powers for approvals, variances or enforcement actions and may affect processing times, delegation patterns and available internal review routes. The instrument does not address delegation or delegation limits; the practical administration will therefore depend on the Minister’s administrative arrangements.

Definition alignment may change scope. Where an expression in a Commonwealth Regulation matches an expression defined in the Territory Act, it must be given the Act’s meaning (r 5(3)(a)). That can narrow or expand the ordinary reading of a Commonwealth obligation where the Territory Act’s definition differs from the Commonwealth drafting assumption. Duty-holders should identify overlapping defined terms to assess whether the Act’s definitions alter obligations.

r 4 prescribes specific Territory OHS laws for s 6A; this is not a wholesale displacement. The wording of r 4 is that, "For the definition of prescribed occupational health and safety laws in section 6A of the Act, the following laws are prescribed" (r 4). That is a definitional prescription. It does not state that other Territory OHS laws are invalid or that OHS obligations from other sources cannot apply outside that defined context. Confusing the definitional prescription with blanket disapplication risks misreading the instrument’s reach.

No standalone penalty or enforcement text in these Regulations. Enforcement and penalty provisions must be located in the applied Commonwealth instruments or the Territory Act; they are not restated here. If a practitioner is looking for maximum penalties or specific enforcement processes, the Regulations will not provide them.

Repeal of prior Datum Regulations may create transitional questions. r 6 repeals the Petroleum (Submerged Lands) (Datum) Regulations (Regulations 2003, No. 7). Transition issues concerning actions commenced under the repealed instrument are not addressed in these Regulations. Practitioners should check related instruments or transitional provisions elsewhere in the Act or in amending legislation for handling pre-existing approvals, licences or surveys.

Commencement linked to a separate Act. The Regulations commence on commencement of the Petroleum (Submerged Lands) Amendment Act 2004 (r 2). Users must be careful to identify the commencement date of that Amendment Act (Endnotes record commencement 1 January 2005) because the Regulations are operational only after that event.

Amendments to r 4 require attention to temporal effect. The endnotes record multiple amending Acts affecting r 4 (including Acts in 2007, 2010, 2011 and 2017). The list suggests that what counts as a prescribed Territory OHS law has changed over time; contemporary compliance must be checked against the current text and not older versions. Practitioners should check the reprint date and the extant version for current obligations.

No recorded litigation in the instrument text. Because the Regulations do not report case law or interpretive decisions, areas of statutory ambiguity (for example, how strictly r 5(3) is to be applied by a tribunal) lack authoritative judicial guidance in the text supplied. That creates uncertainty that must be resolved by external legal research if contested.

Compliance under these Regulations requires treating the listed Commonwealth instruments and the Territory Act as a unified regulatory package and applying the textual adaptation rules in r 5(3). The steps below are practical actions grounded in the instrument’s text.

1. Identify whether the activity falls within the Act’s submerged-lands scope. The Regulations operate in the context of the Petroleum (Submerged Lands) Act 1981 by applying Commonwealth Regulations to that Act (r 5(1)-(2)). Confirm that the activity is within the Act’s remit and thus within the scope where these applied Commonwealth Regulations operate.

2. Determine which instruments apply. Consult r 3 to identify the applicable Commonwealth OHS Regulations (diving safety; management of safety on offshore facilities; occupational health and safety) and the prescribed Commonwealth Regulations (data management; datum excluding reg 5(4); management of environment; pipelines). Prepare a checklist of the obligations, notifications and reporting duties contained in each named instrument.

3. Read definitions through the Territory Act. For any expression in the Commonwealth Regulation that is also defined in the Territory Act, apply the Act’s definition to determine scope and thresholds (r 5(3)(a)). Create a cross-reference table: (a) the Commonwealth instrument term; (b) the Territory Act defined term; (c) the practical effect of the definition on obligations.

4. Re-map statutory references. Where the Commonwealth instrument refers to a provision of the Petroleum (Submerged Lands) Act 1967 (Cth), identify the corresponding provision in the Territory Act and map procedural requirements, approval pathways and compliance duties to the Territory provision (r 5(3)(b)). Document any differences that may affect timing, notice or rights to review.

5. Establish the decision-maker and administrative routes. Replace any reference to the Designated Authority with the Minister for practical purposes (r 5(3)(c)). Confirm the Minister’s delegation arrangements and internal administrative channels so that approvals, applications and compliance notifications are directed to the correct office and processed under appropriate delegations.

6. Review the datum exception. The Petroleum (Submerged Lands) (Datum) Regulations 2002 (Cth) apply "other than regulation 5(4)" (r 3(b)). Identify whether operations rely on datum rules and analyse the operational impact of the specific excluded subregulation. If survey, charting or datum procedures are relevant, seek clarification on the excluded provision’s consequences.

7. Align OHS compliance. For the Act’s s 6A definition of prescribed occupational health and safety laws, r 4 prescribes three Territory statutes (Dangerous Goods Act 1998; Part 5 Electricity Reform Act 2000; Work Health and Safety (National Uniform Legislation) Act 2011). Ensure that internal OHS compliance programmes reflect those statutes where relevant to obligations derived via the Act (r 4). Check the current version of r 4 because the endnotes show historical amendments.

8. Update contracts and safety cases. Where contracts, safety cases or management systems reference the earlier Territory Datum Regulations or earlier Territory-specific rules, update them to align with the applied Commonwealth instruments and the mapped Territory references (r 6). Ensure contractors and service providers are informed that the named Commonwealth instruments apply as Territory law and that the Minister is the relevant authority for approvals.

9. Check enforcement and review paths. Because the Regulations do not create new penalty or review mechanisms, identify the enforcement provisions, offence elements and review procedures in the applicable Commonwealth instruments and the Territory Act. Map how those mechanisms will operate administratively in the Territory context under the Minister’s authority (r 5(2)-(3)).

10. Monitor amendment history and reprints. The endnotes list several amending Acts and formal amendment events (Endnotes). Maintain a log of legislative updates (particularly to r 4 and to any of the applied Commonwealth instruments) so that compliance programmes remain aligned with the extant legal text.

11. Document evidence of compliance. Keep records that demonstrate compliance with the applied Commonwealth Regulations as read with the Territory Act, including mappings and internal legal analyses showing how definitions and references have been adapted per r 5(3). Because enforcement action will look to the applied instruments and the Act, clear documentation will be critical.

12. Seek formal guidance on ambiguous mappings. Where a provision in a Commonwealth instrument does not obviously reconcile with the Territory Act, seek written guidance from the Department or the responsible Minister’s office or obtain legal advice. The Regulations specify only certain textual conversions, and unresolved mismatches should be clarified to avoid compliance risk.

13. Transitional arrangements. If operations were authorised under prior Territory Datum Regulations (repealed by r 6), review licences and authorisations for transitional provisions elsewhere in legislation. Where the Regulations do not provide transitional detail, obtain legal advice on whether and how prior approvals continue to operate.

14. Training and communication. Ensure operational managers, contractors and compliance officers are trained to understand that the named Commonwealth instruments apply as Territory law in the submerged-lands context and that administrative contact points are the Territory Minister (r 5(3)(c)).

By following these steps grounded in the Regulations’ text (rr 3-6), duty-holders and advisers can align operational practice with the legal structure the instrument establishes.