Environmental Protection (Kwinana) (Atmospheric Wastes) Regulations 1992

The Regulations are compact and revolve around a few interdependent legal and technical concepts. Understanding how those concepts are defined in the text is necessary for compliance and for assessing enforcement risk.

Atmospheric waste: The Regulations operate by reference to the Policy’s definition of “atmospheric waste” and then prescribe two concrete kinds of atmospheric wastes for the purposes of that Policy definition: sulphur dioxide (a gaseous substance) and total suspended particulates (a particulate substance) (regulation 3(1)-(2)). Because regulation 2 states that, unless the contrary intention appears, other words and expressions have the same meanings as in the Policy, “atmospheric waste” and related terms are not fully defined within these Regulations and must be read with the Policy’s definitions.

Measurement and units: The unit for concentration is µg/m3, defined as micrograms per cubic metre of dry air at 0°C and one atmosphere pressure (101.325 kPa) (regulation 2). That imposes a fixed reference state for reported concentrations. The Regulations do not specify analytical methods or monitoring protocols; they fix the reference units and physical standard conditions that monitoring results must be convertible to.

Total suspended particulates (TSP): TSP is defined as inert particles each having an equivalent aerodynamic diameter of less than 50 micrometres (regulation 2). The Regulations define “equivalent aerodynamic diameter” as the diameter of a spherical particle of density 1 000 kg/m3 that exhibits the same aerodynamic behaviour as the particle in question (regulation 2). Those definitions distinguish TSP from other size-based metrics such as PM10 or PM2.5; the Regulations do not use the PM nomenclature.

Standards and limits: The instrument uses the terms “ambient air quality standard” and “ambient air quality limit” and fixes numeric values for each in the Schedules for specified areas and averaging periods (regulation 4 and Schedules 1-2). The Regulations do not, within their text, set out the legal consequences of exceeding a “standard” versus a “limit”; they only identify the numeric standards and limits for the purposes of clause 6 of the Policy. The practical legal effect of a standard versus a limit will therefore be determined by clause 6 of the Policy and by any licensing and enforcement regime under the Act.

Geographic differentiation: The Schedules reflect spatial zoning: Area A, Area B, Area C, and Policy Area have different numeric thresholds and averaging periods for the same pollutants. That creates location-specific compliance obligations. The Regulations do not define Area A/B/C/Policy Area within their own text; those terms derive from the Policy (regulation 2).

Licensing and compliance programmes: Regulation 5 prescribes conditions that may be included in licences issued in respect of industrial premises in the Policy Area under section 62(2) of the Act. The prescribed licence conditions include obligations to control discharges to meet the “relevant determination”, to implement compliance programmes with specified timeframes, to take specified measures to achieve or monitor compliance, and to furnish regular progress reports to the Chief Executive Officer (regulation 5). The term “specified” is contextually resolved in the licence itself (regulation 5(2)).

Reference dependence: The Regulations explicitly rely on the Policy for other definitions and for clause 6 (regulation 2 and regulation 4). The Policy, approved under an Approval Order, is therefore a material instrument for understanding the regulatory effect; many operative terms and determinations are defined outside the Regulations themselves.

Amendment and temporal effect: The compilation table records amendments and commencement dates (Notes). Changes in definitions (for example, to regulation 2 in 1999) and to prescribed licence conditions (2014 amendment) demonstrate that the Regulations have been updated; currently they operate in the form reprinted in 2004 and further amended in 2014.

The Regulations allocate obligations and set thresholds that affect a narrow set of actors by name and a broader set by operation. The primary affected parties identifiable from the text are occupiers of industrial premises in the Policy Area, licensing authorities issuing licences under the Act, the Chief Executive Officer referred to in licence reporting requirements, and operators whose emissions contribute to ambient concentrations of sulphur dioxide or total suspended particulates.

Occupiers of industrial premises in the Policy Area: Regulation 5 expressly targets occupiers of industrial premises in the Policy Area by prescribing licence conditions that may be imposed on such occupiers (regulation 5(1)). Those conditions may require occupiers to control discharges from specified industrial sources so that quantities comply with the “relevant determination”, to implement compliance programmes to achieve compliance within specified timeframes, to take specified measures for achieving or monitoring compliance, and to submit periodic progress reports to the Chief Executive Officer (regulation 5(1)(a)-(b)). The term “specified” is to be read as specified in the licence (regulation 5(2)); therefore the occupier’s duties will be shaped by the particular licence terms imposed by the licensing authority.

Industrial sources within licensed premises: The Regulations permit licences to identify particular industrial sources within a premises and particular atmospheric wastes that must be controlled (regulation 5(1)(a) and (b)(i)). That means individual processes or stacks can be singled out in licence conditions. A licence holder may therefore incur costs for source-specific controls, monitoring and reporting. The Regulations do not list particular industrial sectors; any industrial premises within the Policy Area that are licensed under the Act may be subject to the prescribed conditions.

Licensing authorities and the Chief Executive Officer: The Regulations operate through the licensing process under the Act (regulation 5 is for the purposes of s 62(2) of the Act). Licensing authorities decide whether to impose the prescribed conditions and how to specify the wastes, sources, timeframes and reporting intervals within licences. The Chief Executive Officer is the recipient of the periodic progress reports required under the prescribed licence condition (regulation 5(1)(b)(iii)). Thus enforcement and oversight responsibilities rest with the regulators under the Act, and much operational discretion lies with them when specifying licence terms.

Monitoring and measurement service providers: The technical requirements in regulation 2 (µg/m3 reference conditions and the definition of equivalent aerodynamic diameter) and the Schedules’ averaging periods (1 hour, 24 hours, 1 year, 15 minutes) create a demand for monitoring equipment, sampling strategies and laboratory services that can measure concentrations and convert them to the prescribed reference basis. Entities providing air monitoring, analytical services, and emissions control technologies are thereby indirectly affected because occupiers and licensors will need technical assistance to comply.

Communities and landowners in Areas A, B and C: The Schedules apply different numerical values for ambient air quality standards and limits in Areas A, B and C (Schedules 1 and 2). Residents, landowners and other local stakeholders in those areas are affected in the sense that ambient air quality thresholds are set differently by area; that can translate into different regulatory responses, monitoring intensity or licence conditions for nearby industrial premises. However, the Regulations themselves do not create private rights of action or specify community participation mechanisms.

Manufacturers and traders of emissions control equipment: Because the Regulations authorise licence conditions that require control of discharges and compliance programmes, suppliers of control technology and monitoring equipment have a potential customer base in the Policy Area.

Owners of unlicensed premises: The Regulations apply to licences issued in respect of industrial premises. The Regulations do not themselves create licensing obligations for premises that are not otherwise licenced under the Act; therefore unlicenced operators are not directly captured by regulation 5 unless the Act or the Policy requires licensing.

Policy and legal advisers: Because the Regulations refer extensively to the Policy for definitions and determinations (regulation 2) and rely on clause 6 of the Policy (regulation 4), advisers who must interpret or implement the numerical thresholds must read the Policy and the Policy Approval Order together with these Regulations. The compilation table shows amendments; advisers will need to track those dates when advising clients about regulatory status.

The Regulations lay out technical definitions, numeric thresholds and a set of licence-attachment powers which, read together with the Act and the Policy, create practical duties for occupiers and powers for licensing authorities and the Chief Executive Officer. The instrument itself sets the following duties and powers.

Duties on occupiers (as licence conditions): Under regulation 5(1) the Regulations prescribe conditions which may be specified in a licence for industrial premises in the Policy Area for the purposes of section 62(2) of the Act. Those conditions include:

• an obligation that the occupier shall control the discharge of a specified atmospheric waste from specified industrial sources within the premises so as to ensure that the quantities so discharged comply with the relevant determination (regulation 5(1)(a)). The Regulation therefore permits licence language that requires source-specific control to meet specified quantitative outcomes.

• an obligation that the occupier shall control the discharge of a specified atmospheric waste from specified industrial sources so as to achieve compliance with the relevant determination within a specified period and in accordance with a specified compliance programme (regulation 5(1)(b)(i)). This creates an operational duty to design and execute a compliance programme on a timetable set in the licence.

• an obligation to take specified measures for the purpose of achieving, or monitoring the extent of, compliance with the relevant determination (regulation 5(1)(b)(ii)). That authorises licence requirements for monitoring, testing, engineering controls and other measures.

• an obligation to furnish to the Chief Executive Officer, at specified intervals of time, a report on the progress being made towards compliance with the relevant determination (regulation 5(1)(b)(iii)). That imposes an ongoing reporting duty to the CEO.

The Regulations define “specified” for these duties as “specified in the licence concerned” (regulation 5(2)). That means the detail and intensity of these duties,what wastes are “specified”, which industrial sources are identified, what measures are “specified”, what timeframes and what reporting intervals,are selected by the licensing authority via the licence.

Measurement and reporting requirements: Regulation 2 fixes the unit and reference conditions for concentration measurements (µg/m3 at 0°C and one atmosphere). That imposes an implicit duty on those measuring and reporting concentrations to either measure under those conditions or to convert measurements to that reference basis. The Regulations do not themselves lay out methods, but the reference condition constrains acceptable reporting formats.

Rights and powers of regulators: By prescribing conditions that may be included in licences under s 62(2) of the Act, the Regulations empower licensing authorities to require occupiers to adopt control measures, comply with specified determinations, implement compliance programmes and report progress (regulation 5(1)). The Chief Executive Officer is entitled to receive progress reports at the intervals specified in the licence (regulation 5(1)(b)(iii)). The Regulations do not themselves define enforcement mechanisms or penalties; those will be governed by the Act and the Policy.

Geographic duties tied to thresholds: The Schedules specify different numeric standards and limits for Areas A, B and C and for the Policy Area for TSP (Schedules 1-2). Duties to meet particular thresholds depend on the geographic area in which the ambient air is measured. The Regulations make the standards and limits applicable “for the purposes of clause 6 of the policy” (regulation 4), so the obligations to act on breaches or to set licence conditions will be channelled through clause 6 of the Policy and the Act.

Distinction between “standard” and “limit”: The Regulations separately record an ambient air quality standard and an ambient air quality limit for each listed pairing in the Schedules (regulation 4 and Schedules). The text does not in itself set out the legal difference between a “standard” and a “limit”; that treatment is left to clause 6 of the Policy. Therefore the practical legal consequences,whether the standard is an aspirational objective and the limit a binding threshold or vice versa,must be determined with reference to the Policy.

Dependency on the Policy and Approval Order: Regulation 2 defines “the policy” as the Environmental Protection (Kwinana) (Atmospheric Wastes) Policy 1999 approved under the Approval Order and set out in the Schedule to that Order. The Regulations explicitly import other definitions from the Policy unless a contrary intention appears (regulation 2). Therefore many operative rights and duties depend on how the Policy frames the “relevant determination”, the consequences of an exceedance, and the mechanisms for enforcement and remediation.

The Regulations themselves do not create penalties or specify particular enforcement mechanisms. Instead, they operate by prescribing licence conditions for the purposes of section 62(2) of the Environmental Protection Act 1986 and by setting standards and limits that are “for the purposes of clause 6 of the policy” (regulations 4 and 5). This structure means the primary enforcement mechanisms and penalties will be those available under the Act and under the Policy. From the text of the Regulations the following enforcement-related inferences can be made.

Delegation of enforcement to the licensing regime: Regulation 5 prescribes conditions that may be specified in licences issued under the Act (for the purposes of s 62(2) of the Act). Licence conditions are the principal mechanism the Regulations provide to achieve compliance: the licensing authority may impose obligations to control discharges, to comply with relevant determinations within specified timeframes, to implement compliance programmes and to file progress reports with the Chief Executive Officer (regulation 5(1)). Where licence conditions are breached, enforcement action is, in practice, likely to follow under the Act’s enforcement provisions rather than under these Regulations because the Regulations do not themselves set out sanctions.

Role of the Chief Executive Officer: The Regulations require licence holders to furnish progress reports to the Chief Executive Officer at intervals specified in the licence (regulation 5(1)(b)(iii)). The CEO’s receipt of such reports establishes an administrative record and a point of oversight. Any decision to take enforcement action in response to reports or monitoring results will be taken under the Act or the Policy’s mechanisms rather than under these Regulations’ text.

Numeric thresholds as triggers: The Schedules set specific numeric ambient air quality standards and limits for sulphur dioxide and total suspended particulates with specified averaging periods (regulation 4 and Schedules 1-2). Although these numerical values are framed “for the purposes of clause 6 of the policy” and the Regulations do not themselves prescribe a penalty for exceeding them, exceedances will likely form the factual basis for regulatory action, including licence variation, enforcement notices, or prosecutions under the Act, depending on how clause 6 of the Policy and the Act are cast. The Regulations create a clear set of objective measurement thresholds that regulators can use as enforcement triggers.

Absence of in-text penalties: The Regulations do not themselves specify fines, criminal offences, or administrative penalties. Users must therefore consult the Act and the Policy for the specific enforcement powers and sanctions available to regulators. The compilation table shows amendments, but none adds penalty provisions to these Regulations (Notes).

Compliance programmes and reports as enforcement tools: Regulation 5(1)(b)(i)-(iii) contemplates time-bound compliance programmes and progress reports to the CEO. Those procedural obligations enable regulators to supervise remediation efforts and to document compliance steps before, or instead of, immediate enforcement. They create administrative levers: failure to implement a prescribed compliance programme or to furnish required reports could be the basis for regulatory action under the licensing provisions of the Act.

Measurement disputes and evidentiary considerations: Because the Regulations fix measurement units and reference conditions (µg/m3 at 0°C and 101.325 kPa) and define TSP by equivalent aerodynamic diameter (<50 µm) (regulation 2), enforcement actions premised on exceedances will depend on monitoring converted to those references. Enforcement will therefore involve assessment of monitoring methodology, data conversion to the specified reference basis, and the matching of monitoring locations and averaging periods to those set in the Schedules. Disputes about monitoring methodology and data interpretation will be central to enforcement proceedings, although the Regulations do not themselves provide methodological rules.

Interaction with licence specification discretion: The Regulations delegate substantial specification to licences (regulation 5(2) defines “specified” as “specified in the licence concerned”). That delegation means enforcement outcomes will depend heavily on how specific licensing authorities draft and apply licence terms. Regulatory discretion in licence drafting and enforcement under the Act will therefore be determinative.

The Regulations are expressly designed to work with the Environmental Protection Act 1986 and with the Environmental Protection (Kwinana) (Atmospheric Wastes) Policy 1999, which was approved under an Approval Order. The Regulations do not stand alone; they assign roles and thresholds while relying on external instruments for definitions, enforcement powers and operational detail.

Reference to the Act: Regulation 5 is expressly “for the purposes of section 62(2) of the Act”. By prescribing conditions that may be specified in licences issued under that statutory authority, the Regulations depend on the licensing powers, procedural rules, and enforcement provisions contained in the Act. The Regulations do not replicate the Act’s licensing or enforcement provisions; they supply prescribed licence conditions that the licensing process may adopt. Consequently, the Act’s procedural, appeal and sanctioning mechanisms apply to the conditions prescribed here once incorporated into licences.

Dependence on the Policy and Approval Order: Regulation 2 defines “the policy” as the Environmental Protection (Kwinana) (Atmospheric Wastes) Policy 1999 approved under the Environmental Protection (Kwinana) (Atmospheric Wastes) Policy Approval Order 1999 and set out in the Schedule to that Order. Regulation 4 operates expressly “for the purposes of clause 6 of the policy” and regulation 3 prescribes pollutant kinds for the purposes of clause 3(1) of the policy. The Regulations therefore import substantive constructs (for example, “relevant determination”, “Policy Area”, and other definitional material) from the Policy. To fully understand legal obligations, one must read the Regulations together with the Policy and Approval Order.

Licensing regime interface: Because the Regulations prescribe licence conditions to be used under the Act, they shape the content of licences. The Act’s licensing decision-making process, which includes public notification, conditions, review and appeal mechanisms, will determine how these prescribed conditions are implemented. The Regulations do not alter the licensing authority’s fundamental powers; they prescribe particular conditions that the authority may include.

Measurement and standards in broader regulatory context: The Regulations set numeric standards and limits (Schedules 1-2) which will be used as benchmarks alongside any other statutory or regulatory requirements applicable under the Act, the Policy, or other environmental instruments. If other statutes or policies set different ambient air quality thresholds or monitoring protocols, licence holders and regulators will need to reconcile or prioritise the applicable requirements; these Regulations do not address conflicts of laws.

No explicit cross-reference to other statutes or local government instruments: The text does not refer to other statutes or local planning instruments. It does not create or alter planning approvals or development controls. Any overlap between environmental licensing under the Act and planning or development approvals will therefore be managed under the separate legal frameworks; these Regulations contribute only to the environmental licencing dimension.

Compliance with technical standards and laboratory accreditation: The Regulations fix the physical reference basis for concentration measurements (µg/m3 at 0°C and 101.325 kPa) and define TSP by equivalent aerodynamic diameter (regulation 2). They do not, however, cite particular analytical standards, international methods, or laboratory accreditation requirements. The practical interaction with standards such as those used by accredited laboratories will be determined by licensing conditions, the Policy, and the expectations of the licensing authority under the Act.

Temporal interaction via amendments: The compilation table records amendments in 1999 and 2014 and a reprint in 2004. Those amendments show the Regulations can be updated and should be read in their current consolidated form together with the Policy and the Act. Lawyers and compliance officers must therefore consult the current consolidated Regulations and the Policy to identify the operative obligations.

The Regulations have a short but documented amendment record set out in the compilation table in the Notes. The compilation table and marginal notes show enactment, amendments and reprint dates, and identify the specific regulations altered in some cases.

Initial enactment: The Environmental Protection (Kwinana) (Atmospheric Wastes) Regulations 1992 were originally gazetted on 17 July 1992 and commenced the same day (Compilation table).

1999 amendment: The Environmental Protection (Kwinana) (Atmospheric Wastes) Amendment Regulations 1999 were gazetted on 21 December 1999. The marginal note to regulation 2 indicates that regulation 2 (interpretation) was amended (Gazette 21 Dec 1999 p. 6404). The compilation table records the amendment and indicates the 1999 amendment took effect on 21 December 1999 (with cross-reference to Gazette 21 Dec 1999 p. 6395). The change to regulation 2 is the only amendment specifically identified in the marginal note; as regulation 2 contains definitional material and the definition of “the policy”, that amendment likely changed how the Regulations reference the Policy or certain technical terms, but the text as provided shows the current wording (for example, the definition of µg/m3 and total suspended particulates).

2004 reprint: A reprint of the Regulations as at 6 February 2004 is recorded (Reprint 1), which incorporated the amendments then in force. The reprint is noted in the compilation table; reprints consolidate previous amendments into a single text for reference purposes.

2014 amendment: The Environmental Protection (Kwinana) (Atmospheric Wastes) Amendment Regulations 2014 were gazetted on 22 August 2014 (Gazette 22 Aug 2014 p. 3034). The compilation table shows commencement particulars: regulations 1 and 2 commenced 22 August 2014; regulations other than 1 and 2 commenced 23 August 2014. The marginal note to regulation 5 indicates that regulation 5 was amended by Gazette 22 Aug 2014 p. 3034. The 2014 amendment therefore altered the prescribed licence conditions or their formulation in regulation 5; the current version of regulation 5 (as reproduced) contains the present wording of the prescribed licence conditions, including the definition that “specified” means specified in the licence.

No other amendments recorded in the compilation table: The compilation table lists only the 1999 and 2014 amendments in addition to the original 1992 instrument and the 2004 reprint. The Notes do not record any more recent amendments.

Implications for compliance and interpretation: The amendment history shows that definitions and prescribed licence conditions have been revised at least twice. Users must ensure they consult the consolidated/current text when assessing current obligations. The compilation table entries also supply the precise Gazette references and commencement dates for each amendment, which is relevant for historical compliance questions and for determining which version of the Regulations applied at a particular time.

No textual record of Policy amendments in the compilation table: The compilation table records only amendments to the Regulations themselves. The Regulations explicitly rely on the Policy as approved under an Order; the compilation table does not show any amendments to the Policy or the Approval Order. Practitioners must therefore check separately whether the Policy or Approval Order has been amended, as obligations under the Regulations depend on those instruments (regulation 2).

Relevance to licence terms over time: Because the Regulations permit the licensing authority to specify wastes, sources, timeframes and reporting intervals in licences, and because regulation 5 was amended in 2014, licences and compliance programmes implemented prior to that amendment may have different terms. Historical licensing decisions should therefore be reviewed against the relevant version of the Regulations and the Policy as at the time of licence grant or variation.

The text of the Regulations supplies no litigation history. It names no decisions, cases or judicial interpretations and does not report any court outcomes. The instrument’s Notes and compilation table record only legislative provenance and amendments. Consequently, there are no cases cited in the Regulations that can be summarised here.

Nevertheless, the Regulations identify several discrete legal and factual areas where litigation or administrative review could arise, based on the obligations and technical thresholds they establish. These are factual, procedural and interpretive loci for possible disputes, grounded in the text.

Potential dispute areas grounded in the Regulations

• Measurement and conversion methodology: Regulation 2 fixes the reference conditions for µg/m3 and defines equivalent aerodynamic diameter for TSP. Disputes could arise over whether measurement methods used by a licence holder or regulator correctly convert sampling data to the required reference state, or whether instruments used are appropriate for measuring particles defined by equivalent aerodynamic diameter. The Regulations, however, do not set monitoring methods; disputes would hinge on licence requirements, the Policy and the Act.

• Area classification and applicability: The Schedules apply different standards and limits to Area A, Area B, Area C and the Policy Area (Schedules 1-2). Litigation could concern the precise geographic boundaries of those areas, the appropriate location(s) for ambient monitoring, and whether a given receptor location falls within a specified area, but the Regulations do not themselves define the area boundaries in the text; that definition derives from the Policy.

• The meaning and legal effect of “standard” versus “limit”: The Regulations list both a standard and a limit for each pollutant-area-averaging period combination (regulation 4 and Schedules 1-2) while leaving clause 6 of the Policy to give them effect. Litigation could explore the legal consequences of exceeding a “standard” as distinct from a “limit”, whether exceeding a standard triggers mandatory remedial measures or only informs policy-making, and how regulators should respond to exceedances.

• Licence specification and discretion: Regulation 5 permits licence conditions to “specify” wastes, sources, measures, timeframes and reporting intervals, defining “specified” as “specified in the licence concerned” (regulation 5(2)). Disputes may arise over whether particular licence terms are valid, proportionate, or consistent with the Act’s licensing criteria. Judicial or administrative review of licensing decisions imposing particular compliance programmes is a possible avenue of litigation.

• Enforcement actions based on monitoring data: Because the Schedules set quantitative thresholds, any regulator action that is premised on monitored exceedances could prompt legal challenges to the data, monitoring protocols, location, averaging period, or conversion to reference conditions. The Regulations themselves do not provide methodological rules, so the licence, the Policy and technical guidance will be focal points in litigation.

Absence of recorded case law in the instrument: For anyone researching litigation history, the Regulations offer no internal citations to cases or adjudicative precedent. Practitioners must search court and tribunal records, administrative review decisions, and regulator enforcement records for disputes involving these Regulations or the Policy.

These Regulations are short and conceptually narrow, but there are several practical traps and interpretive pitfalls that compliance officers, licensors and occupiers should be alert to. Each “gotcha” below is grounded in the Regulations’ text and structure.

Reliance on external Policy for operative definitions: Regulation 2 expressly imports definitions from the Environmental Protection (Kwinana) (Atmospheric Wastes) Policy 1999, stating that, unless the contrary intention appears, words and expressions have the same meanings as in the Policy. That means many operational concepts,such as “relevant determination”, the definitions of Area A/B/C/Policy Area, and procedural consequences of exceedances,are not defined in these Regulations but in the Policy. Treating the Schedules in isolation is therefore risky.

“Specified” is licence‑determined: Regulation 5(2) defines “specified” by reference to the licence itself. That transfers material discretion to licensing authorities. A licence could thus impose very granular obligations (identify particular sources, tailor compliance measures, require specific monitoring) or relatively general ones. Occupiers cannot assume uniformity across licences; read your licence precisely to determine what is “specified”.

TSP is not PM10/PM2.5: The Regulations regulate total suspended particulates defined as particles with an equivalent aerodynamic diameter of less than 50 µm (regulation 2). That is a broader particle size class than PM10 or PM2.5 used in many other regulatory schemes. Monitoring equipment and methods calibrated for PM10 or PM2.5 may not directly provide TSP measurements without adjustment or different sampling apparatus. Failure to recognise this measurement distinction can lead to non‑comparable monitoring results.

Reference conditions for µg/m3: The unit µg/m3 is defined in regulation 2 as concentration in dry air at 0°C and 101.325 kPa. Field monitors do not operate at those conditions; monitoring results therefore must be converted to the reference state for regulatory comparison. Ensure conversion methodologies are documented and consistent with licence and Policy expectations; otherwise, apparent exceedances may be the artefact of unconverted measurements.

Different averaging periods: The Schedules impose multiple averaging periods (15 minutes, 1 hour, 24 hours, 1 year), and short-duration limits exist (for example, Schedule 2 Item 1 imposes a 15‑minute limit of 1 000 µg/m3 for TSP in the Policy Area). Short averaging periods require high temporal-resolution monitoring (continuous or near‑continuous monitors). If licences require compliance with short-term limits but monitoring is only periodic, occupiers may be unable to demonstrate compliance.

Standard versus limit ambiguity: The Schedules list both a “standard” and a “limit” for each pollutant-area pairing, but the Regulations do not explain their legal difference; that task is left to clause 6 of the Policy (regulation 4). Practitioners should not assume that exceeding a “standard” carries the same consequence as exceeding a “limit” without checking the Policy and licence language.

Prescriptive thresholds but not methods: Numeric thresholds are set, but the Regulations do not prescribe sampling locations, analytical methods, QA/QC protocols, or monitor siting criteria. Those details will likely be addressed in licence conditions or the Policy. Absent explicit methodological rules in the Regulations, disagreements about method adequacy can become central in compliance disputes.

Spatial boundary uncertainty: The Regulations use Area A/B/C and the Policy Area in the Schedules but do not define those boundaries in their text (regulation 4 and Schedules). Practically, the exact geographic delineation will be crucial; the Policy must be consulted for map boundaries. Misclassifying a site’s area could lead to application of incorrect standards.

Reporting obligations may be bespoke: Regulation 5 requires progress reports to the Chief Executive Officer “at specified intervals of time”. Because “specified” is licence‑driven, interval timing could be short or long; occupiers must check their individual licences to determine the reporting cadence and content.

Amendments have modified definitions and licence conditions: Regulation 2 was amended in 1999 and regulation 5 in 2014 (Notes). Historic licences granted prior to amendments may have terms drafted under earlier versions of the Regulations. Review the operative text as at the licence grant or variation date when considering retrospective compliance questions.

No in‑Regulation penalty schedule: Because these Regulations do not set penalties, practitioners must look to the Act and the Policy to determine sanctions. Do not assume that exceedances automatically produce a particular penalty absent the Act or Policy provisions or a licence condition specifying consequences.

Compliance with these Regulations requires coordinating measurement, licence review, control measures and reporting. The Regulations prescribe numeric thresholds and licence‑based duties; they do not set monitoring methodologies or enforcement penalties within their text. The steps below follow directly from the Regulations’ text and the structure they create.

1. Identify applicable geographic area and relevant Policy provisions

• Consult the Environmental Protection (Kwinana) (Atmospheric Wastes) Policy 1999 and its Approval Order to determine whether your premises lie within Area A, Area B, Area C or the Policy Area and to locate the Policy’s maps, definitions and clause 6. Regulation 2 defines “the policy” as that 1999 Policy and states that other words have the same meanings as in the Policy. Do not rely solely on the Schedules in the Regulations for geographic delineation.

2. Review your licence for “specified” language

• Under regulation 5(2) “specified” means specified in the licence concerned. Inspect current licences issued under the Act to determine which atmospheric wastes and which industrial sources at your site are “specified”, what “relevant determinations” apply, the compliance programme timeframe, and the reporting intervals required by the licence. If your licence does not contain such clauses and your premises are in the Policy Area, confirm whether the licensing authority will impose them in the future.

3. Map your emissions against the prescribed wastes

• The Regulations prescribe sulphur dioxide and total suspended particulates as the regulated pollutant categories (regulation 3). Identify all processes, stacks and fugitive sources onsite that emit sulphur dioxide or particulate matter that falls within the TSP definition (particles with equivalent aerodynamic diameter <50 µm), and prepare an emissions inventory that can be linked to any “specified” sources in the licence.

4. Implement monitoring that matches units and averaging periods

• The Schedules set standards and limits in µg/m3 with specified averaging periods (Schedules 1-2). Monitoring programmes must be capable of producing results convertible to µg/m3 at the reference conditions specified in regulation 2 (dry air at 0°C and one atmosphere pressure). For short averaging periods (for example, the 15‑minute limit of 1 000 µg/m3 for TSP in the Policy Area, Schedule 2 Item 1) use continuous or high‑frequency monitors with appropriate time resolution. For annual averages, ensure long-term monitoring or validated modelling that supports reliable annual calculations.

5. Ensure particle measurement is appropriate for TSP

• TSP is defined as particles with equivalent aerodynamic diameter less than 50 µm (regulation 2). Standard PM10 or PM2.5 samplers may not capture the full TSP fraction. Deploy samplers and size‑selective inlets, or use gravimetric or other accepted methods that can quantify the TSP fraction. Document conversion methodology where necessary and ensure laboratory protocols address equivalent aerodynamic diameter definitions (including density assumptions).

6. Convert measurements to the reference basis and document QA/QC

• Field instruments operate at ambient temperature and pressure; ensure measurements are converted to µg/m3 at 0°C and 101.325 kPa, and to dry air conditions as required by regulation 2. Maintain clear QA/QC procedures, chains of custody and calibration records to underpin any compliance claims or to meet licence reporting expectations.

7. Prepare and maintain a compliance programme

• If your licence includes regulation 5(1)(b) style conditions, design a compliance programme that sets out actions, intermediate milestones and dates consistent with the licence’s specified period by which the “relevant determination” must be met. The Regulations authorise the imposition of such programmes but leave the content and timeframe to the licence (regulation 5(1)(b)(i)). Document planned control measures (engineering controls, operational changes, emissions reductions) and monitoring to verify progress.

8. Implement and record control measures

• The prescribed licence conditions include obligations to “take specified measures for the purpose of achieving, or monitoring the extent of, compliance” (regulation 5(1)(b)(ii)). Record all engineering installations, maintenance logs, operating procedures and validation studies that demonstrate the measures taken to reduce discharges.

9. File progress reports to the Chief Executive Officer as required

• Regulation 5(1)(b)(iii) requires occupiers to furnish progress reports to the Chief Executive Officer at intervals specified in the licence. Prepare periodic reports that summarise monitoring data (converted to the reference conditions), progress against compliance programme milestones, any incidents or exceedances, and planned next steps. Keep copies of submitted reports and proof of submission.

10. Match licence obligations to Schedules and the Policy

• Ensure the compliance programme and monitoring plan are explicitly designed to demonstrate compliance with the ambient air quality standards and limits in Schedules 1 and 2 for your specific area and averaging periods (regulation 4). Cross‑reference the licence’s “relevant determination” to clause 6 of the Policy so that both the licence and the Policy are addressed in your compliance documentation.

11. Anticipate short‑term exceedances and have a rapid response plan

• Because short averaging periods are present in the Schedules (for example, 15 minutes and 1 hour), implement an incident and response protocol to address spikes in emissions (communications, source shutdown procedures, stack inspections and follow‑up monitoring). Document investigative steps taken after any exceedance.

12. Maintain traceability for historical compliance

• The Regulations have been amended (1999 and 2014) and reprinted in 2004. Retain historical monitoring, licence and reporting records to demonstrate the state of compliance at any given time, particularly if licence conditions change due to regulatory amendments.

13. Coordinate with licensors and technical advisers

• Because many operational specifics are licence‑determined and the Regulations defer aspects to the Policy, proactively engage with the licensing authority to clarify expectations for monitoring methods, reporting formats and milestone schedules. Seek technical advice for appropriate sampling methods for TSP and for conversion to the reference conditions in regulation 2.

14. Seek clarification where the Policy or licence is silent

• If the Policy and licence do not specify monitoring methods, sampling locations, or QA/QC criteria, seek written agreement with the licensing authority or include those details in the compliance programme and reports to avoid later disputes. Because the Regulations provide numerical thresholds without methodological detail, documenting agreed methods reduces the risk of later enforcement disagreements.

Following these steps will align a licence holder’s operational, monitoring and reporting activities with the obligations and numeric thresholds set out in these Regulations. The Regulations create the numeric framework and licence‑based duties; full compliance therefore requires integrating the text of the Regulations with the operative Policy, the licence terms, and the licensing authority’s expectations.