First issue
26 The applicant submitted that the Tribunal's decision was affected by error as follows.
27 First, the applicant submitted that the Tribunal did not resolve the constructional choice presented by the language of "public road" by evaluating the "relative coherence of the alternatives with identified statutory objects or policies", referring to: Taylor v Owners - Strata Plan No 11564 [2014] HCA 9; (2014) 253 CLR 531 at 557 [66]; SAS Trustee Corporation v Miles [2018] HCA 55; (2018) 92 ALJR 1064 at 1071 [20]. Rather, the applicant submitted, the Tribunal's construction of "public road" - which term was used in the statutory scheme to delimit the incidence of the road user charge imposed by s 43-10(3) - was predicated on the Tribunal's construction of the Minister's power to determine the rate of that charge. On such an approach, the applicant submitted, the Tribunal found it necessary (at [27]) to "exhaust the scope of the power" to determine the rate of the road user charge under ss 43-10(7) and (8) before attributing meaning to the term "public road". The applicant submitted that such an approach was inapposite given that the considerations that might be available when setting the rate of the road user charge could not be logically conclusive of whether the charge arose in the first place.
28 The applicant submitted it was necessary to have regard to orthodox considerations of text, context and purpose, whereby context was regarded at the first stage, and in its widest sense to include such things as the existing state of the law and the mischief which, by legitimate means, one may discern the statute was intended to remedy, referring to CIC Insurance Ltd v Bankstown Football Club Ltd [1997] HCA 2; 187 CLR 384 at 408; SZTAL v Minister for Immigration and Border Protection [2017] HCA 34; 262 CLR 362 at [14].
29 The applicant referred to the text, the context and the statutory purpose. In relation to the latter, the applicant submitted the overall object of the Fuel Tax Act was to reduce or remove the incidence of fuel tax on fuel used in heavy vehicles for business purposes, referring to s 2-1. As to the purpose of the road user charge in s 43-10(3), the applicant submitted the Tribunal correctly found (at [26]) that this was to "reimburse the public purse for road expenditure occasioned by the damage caused by heavy vehicles to roads not already financed through tolls". In this respect, the applicant submitted that the Revised Explanatory Memorandum to the Fuel Tax Bill 2006 (Cth) made clear (at [1.2], [2.2], [4.3]) that the introduction of the proposed new fuel tax credit system was the first of "a number of fuel tax measures announced in the Government's June 2004 white paper, 'Securing Australia's Energy Future'". That White Paper had in turn stated, at page 100:
The transport sector has long argued that the current excise arrangements for heavy vehicles, defined as those with a gross vehicle mass of 4.5 tonnes or more, are inefficient and need reform. The government has listened and will introduce reforms to remove inefficiencies and ensure the excise system plays a more positive role in supporting Australia's transport task.
The existing partial excise applying to fuel used in heavy vehicles will be formally recognised and set as a non-hypothecated road user charge from 1 July 2006. The value of the charge will be set in accordance with the National Transport Commission's heavy vehicle charging determination process. This cooperative federal-state process assesses the impact of heavy vehicles on road costs, and is used by the states and territories to set and adjust registration charges for these vehicles.
The applicant also referred to that White Paper at pages 14 and 93, as follows:
REDUCING THE BURDEN OF TAXATION -
FUEL EXCISE REFORM
Starting on 1 July 2006 and concluding on 1 July 2015, the fuel excise system will be modernised and simplified. About $1.5 billion in excise liability will be removed during the period to 2012-13 benefiting many thousands of businesses and households. The government will limit the effective application of excise to the business use of fuel in on-road applications in vehicles with a gross vehicle mass of less than 4.5 tonnes, and private use of fuel in on-road vehicles and certain off-road applications. All fuels used off road for all business purposes will become effectively excise free.
Excise on burner fuels will be removed, benefiting up to 90 000 households, mainly in regional areas, that currently pay excise on the fuel they use for heating. The current partial excise on fuels used in heavy vehicles will be converted to a road user charge and the existing urban-rural boundaries will be abolished. The excise arrangements for heavy vehicles will apply to all fuels, not just diesel. This will provide partial excise relief for around 54 000 heavy petrol vehicles for the first time [ABS 2003]. These changes build on the 2003-04 Budget decision that excise rates for all fuels will be based on energy content. Alternative fuels that effectively enter the excise net from 1 July 2011 will receive a 50 percent discount on energy content based excise rates.
…
FUEL EXCISE REFORM
Key Points
The current excise arrangements are no longer consistent with the principles of good taxation.
The Australian Government will implement a major programme of reform to modernise and simplify the fuel excise system, commencing on 1 July 2006 and concluding on 1 July 2015. The changes will lower compliance costs, reduce tax on business and remove the burden of excise from thousands of individual businesses and households.
The government will limit the effective application of excise to:
• business use of fuel in on-road applications in vehicles with a gross vehicle mass of less than 4.5 tonnes
• private use of fuel in vehicles and certain off-road applications
All fuels used off-road for all business purposes will become excise-free over time.
Excise rates for all fuels will be based on energy content, with alternative fuels receiving a 50 per cent discount on energy content excise rates.
The current complex system of grants and rebates will be replaced by a single business credit system. Excise credits will be claimable through the Business Activity Statement from 1 July 2006.
Partial excise credits will apply to all fuels, including petrol, used for all business purposes on-road in vehicles with a gross vehicle mass of at least 4.5 tonnes.
The net excise paid on fuels used on-road for business purposes in heavy vehicles (those with a gross vehicle mass of 4.5 tonnes or more) will be converted into a road user charge, and the urban-regional boundaries that govern eligibility for excise credits for heavy vehicles will be removed. New requirements will be introduced to address heavy polluters.
…
30 The applicant also referred to the National Transport Commission's January 2006 Regulatory Impact Statement, and October 2005 Technical Report, in relation to the Third Heavy Vehicle Road Pricing Determination.
31 As to the former, the Regulatory Impact Statement, described as setting out the National Transport Commission's proposals for a Third Heavy Vehicle Road Pricing Determination, the following was said, at pages 4 and 9-10:
Costs of providing and maintaining roads for use by light vehicles are not subject to a national cost-recovery charging system. Taxes and charges applying to light vehicles are the province of individual State and Territory governments. Expenditure that does not relate to road construction and maintenance is not recovered by the charges, nor is expenditure on toll roads.
…
… The Pricing Principles are:
"National heavy vehicle road use prices should promote optimal use of infrastructure, vehicles and transport modes.
This is subject to the following:
• full recovery of allocated infrastructure costs while minimising both the over and under recovery from any class of vehicle
• cost effectiveness of pricing instruments
• transparency
• the need to balance administrative simplicity, efficiency and equity (eg impact on regional and remote communities/access)
• the need to have regard to other pricing applications such as light vehicle charges, tolling and congestion.
Note: These principles allow for the inclusion of variable mass distance charges and externality charges relating to noise and air emissions where:
• there are clear net economic gains;
• the extent of effort is recognised; and
• transparency and more accurate pricing within the road mode are ensured".
32 As to the latter, the Technical Report, the applicant referred to [1.2] which in turn referred to the August 2004 Road Use Pricing Principles approved by the Australian Transport Council. Later, at [3.3] under the heading unallocated road expenditure, it was said that certain costs were excluded from the cost allocation process because either they were recovered by other fees or they did not reflect the costs of providing and maintaining roads for motorised road users. It was said that expenditure on roads being financed through tolls was not included in the expenditure reported, and should be excluded from the national heavy vehicle charges calculations in order to avoid double counting.
33 The applicant submitted that, in face of the Tribunal's acceptance of the statutory purpose of the road user charge, whereby toll roads would be excluded from the expenditure calculation by the National Transport Commission to avoid double counting in accounting for heavy vehicles paying their fair share of road construction and maintenance costs, the reasons the Tribunal gave for adopting a broader meaning of public road did not withstand scrutiny. The meaning of "public road" that the Tribunal adopted did not reflect the logical connection, referred to by the Tribunal at [27], between heavy vehicle use and recouping the cost to government of road construction and maintenance.
34 The applicant submitted that its case as to the meaning of a "public road" in s 43-10(3), being a term which, as used in that provision, demarcated the fuel base that was subject to the road user charge, did not depend on the breadth of the ministerial power to set the rate of that charge. To hold, as the Tribunal did, that before working out the meaning of a "public road" in s 43-10(3) one had to exhaust the scope of the determination power in s 43-10(8) collapsed the distinction drawn between these provisions, the applicant submitted. Even if the scope of the rate determination power were as wide as the Tribunal found at [28], the scope of that power did not delineate the base in relation to which the charge could be raised. The applicant submitted that it was not a question of exhausting the scope of the power but of finding the centre of gravity of the power, which was the recoupment of maintenance and construction costs where those costs were borne by the public.
35 The applicant submitted that the use of the undefined term "on-road" in the objects provisions of the Fuel Tax Act did not, as the Tribunal found, provide any indication as to the meaning of the term "public road". Given that the only "road" referred to in the substantive provisions of the Fuel Tax Act is a "public road", the Fuel Tax Act can be seen to use the term "on-road" in the objects provisions in ss 2-1 and 40-5 as a shorthand for the phrase "travelling on a public road" in s 41-20. The word "public", appearing in that phrase, must be given work to do. The language of "on-road" simply begged the question of what was comprised by "travelling on a public road" for the purposes of the Fuel Tax Act, the applicant submitted.
36 The applicant submitted that the construction of "public road" for which it contended enabled each of the provisions of the Fuel Tax Act in which that term appeared (being ss 41-10(4)(a), 41-20, 41-25(2)(c), 43-8(c), 43-10(3), 43-10(4)) to operate sensibly. If each of these toll roads was not a "public road", the exclusion in s 43-10(4) did not, as the Tribunal considered, become "fraught". Rather, in that event, the road user charge in s 43-10(3) did not apply to fuel used for travelling on the toll road, so that the exception to that charge in s 43-10(4) simply was not engaged. Further, where there was a potential for s 43-10(4) to exclude the road user charge from being applied to fuel used for travelling on what was admittedly a public road under s 43-10(3), a characterisation exercise must be undertaken to identify a vehicle's "main use" and whether its travel on a public road was "incidental" thereto. The nature of this enquiry was not materially affected by whether or not the toll road was a public road. Further, the applicant submitted, its construction of "public road" would not give any unintended operation to s 41-20. The Tribunal considered that s 41-20 was "intended to be a disentitling provision for vehicles under (sic) 4.5 tonnes" and, on that premise, that the applicant's construction of "public road" would mean that certain travel by light vehicles "would not be subject to the disentitlement". Yet, the Tribunal's identification of the purpose underlying s 41-20 assumed the very proposition that was in issue, namely, that fuel used "on-road" as referred to in s 2-1 of the Fuel Tax Act (and fuel used in a light vehicle "travelling on a public road" as referred to in s 41-20) included fuel used for travel on the toll roads. The extrinsic material did not support that assumption: see the Revised Explanatory Memorandum at [2.10], [2.47], [2.50], [2.51]. Whether or not one of the toll roads was a public road within the meaning of the Fuel Tax Act, fuel used in light vehicles on a public road will be subject to fuel tax, which was the result for which s 41-20 provided, the applicant submitted.
37 The purported "practical common sense" considerations relied upon at [32] of the Tribunal's reasons did not justify the construction of "public road" adopted by the Tribunal, the applicant submitted. The fuel tax credits scheme under the Fuel Tax Act was predicated on self-assessing taxpayers conducting an apportionment exercise to calculate their entitlements thereunder, involving differentiation between acquisitions and uses of fuel: (i) for business and non-business purposes (s 41-5(1)); (ii) for transport and other purposes such as domestic heating (s 41-10(1)); (iii) in heavy vehicles and in light vehicles (s 41-20); (iv) for travelling on a public road and for other purposes (s 41-10(3)); and (v) for "incidental" and non-incidental travel on a public road (s 41-10(4)). Given the detailed analysis of fuel acquisition and usage (pursuant to Div 44) that must be undertaken by taxpayers to accurately claim fuel tax credit entitlements, there was little relative "impracticality" in taxpayers differentiating between fuel used for travelling on the toll roads and fuel used for other purposes.
38 The Tribunal's assumption that, if the respondent Commissioner's construction of "public road" was accepted, "no further inquiry will need to be made", ignored the myriad distinctions that would remain to be considered when working out fuel tax credit entitlements. These included, for instance, whether the road was a private access mining road, forestry road, or port road, etc. The alleged simplicity of the Commissioner's construction of "public road" was thus illusory, the applicant submitted.
39 The applicant submitted that the Court should prefer a construction of "public road" that complemented the notion of a "road user charge", with which that term was statutorily aligned, and which was manifestly concerned with raising a levy which responded to road use by heavy vehicles.
40 The applicant submitted the question was not whether the public had access to these roads. The cost-setting process, the raising of a road user charge, was not concerned with what the public could and could not access. It was concerned with how heavy vehicles use roads and the public costs of maintenance and, indeed, other costs, such as environmental and health costs, associated with heavy vehicle use.
41 The respondent Commissioner submitted that a public road in the Fuel Tax Act was any road which the public may generally access as of right, in the sense that the road operators bear a corresponding obligation to ensure the toll roads and bridges were generally open and available to use by the public. To the extent it was necessary to go beyond that consideration, the respondent submitted, it would be sufficient that the public bear some risk, responsibility or cost in relation to the road, in order for that road to be considered a "public road" for the purposes of s 43-10(3).
42 The respondent submitted that the statutory context revealed that the object of the legislation was to simplify the pre-existing fuel tax, excise and rebate measures, and thus to reduce the administrative burden. The respondent referred in this respect to s 2-1 and to the Revised Explanatory Memorandum at [1.2]-[1.3].
43 The respondent submitted that the context necessarily included the Minister's power to set the rate of the road user charge, that power being in the same provision as that which reduced a taxpayer's credit. The only express constraints on the Minister's power were in ss 43-10(9)-(12).
44 The respondent submitted the legislation was drafted in a way that gave the Minister significant latitude in determining the rate of the road user charge. The consequence of this was that the Minister may have regard to a range of matters, such as costs, risks or responsibilities borne by the public in setting the rate. The key point was that there was no restriction in the legislation that would prevent the Minister from taking into account public costs associated with tolled roads. Whether the Minister did so (or not) was irrelevant. The statutory architecture was broad enough to permit it, and this gave an indication as to the purpose in using the expression "public road" in the same provision, the respondent submitted.
45 The Minister's power may involve the setting of a rate to deal with externalities to road costs, examples of which included the possibility of dealing with environmental costs or risks, the respondent submitted.
46 The respondent submitted that the Go Between Bridge was built at the cost of the Brisbane City Council, and each of the M2 Motorway, Eastlink and the Sydney Harbour Tunnel involved the use of land acquired or held by the public and/or some other public contribution (such as an interest free loan). The respondent referred to the Appendix to the reasons of the Tribunal at [217]-[225], [267]-[269], [286]-[289] and [317]. These were significant public costs or contributions that the Minister could take into account in setting the charge. Given that context, it would make no sense to construe "public roads" in a manner that excluded those toll roads. The statutory purpose of the road user charge - construed by reference to the words Parliament chose to include in s 43-10 rather than by reference to other materials - was to recover any public cost that the Minister could take into account in setting the road user charge. The expression "public road" was to be construed accordingly, the respondent submitted. The power conferred on the Minister in another subparagraph of the provision in question was part of the statutory context that indicated what was intended by the expression "public road".
47 The respondent submitted that the meaning that the word "public" had been given in different statutory contexts was of no assistance at all in this case.
48 There was no controversy, the respondent submitted, that there must be some apportionment exercise for fuel used in travelling on roads that were not public roads.
49 The respondent submitted that the impracticality which his and the Tribunal's construction avoided, and which the applicant's construction could not avoid, was the necessity of enquiring into the contractual requirements in relation to particular toll roads, to ascertain whether and to what extent the public or private interests were to earn a profit, or were to bear costs or responsibility of maintenance. The Sydney Harbour Bridge, which the public paid a toll to access, was a public road on the applicant's test but other cases were much less clear. The Tribunal also extracted facts which were not disputed in a lengthy Appendix, which indicated the complexity of the identified toll road arrangements. Similar difficulties may arise in other contexts, such as on airport or port roads, the respondent submitted.
50 The respondent submitted his construction was practical, in that it could be assessed as a matter of common sense whether a road was public, by dint of a taxpayer's ability to make use of a toll road that was integrated into the overall public road system. Toll roads were necessarily accessible to the public generally; in fact, the profitability of such a road depended upon the public taking up that opportunity. Few members of the public would have access to the numerous, lengthy and complex agreements which were necessary to consider in order to work out the extent to which the "government is responsible for construction and maintenance costs". The respondent referred, for example, to the M2 Project Deed, under which the Roads and Traffic Authority was required to "design and construct" works relevant to the Motorway: cl 2.17(a), and also to cll 1.2(c)(i) and (ii) of Exhibit K to the Project Deed. The construction adopted by the Tribunal meant that such an enquiry into the various contractual documents was unnecessary. The respondent also submitted that, even if those documents could be obtained, the applicant's construction involved the impracticality that, in effect, the extent to which a government or private operator bore the cost of construction and maintenance was a question of degree, without a binary answer.
51 In its written reply, the applicant submitted that neither of the two central matters of statutory context relied on by the respondent provided sufficient reason for preferring the respondent's construction of "public road". Section 2-1 of the Fuel Tax Act made clear that the legislation was principally targeted at reducing or removing the incidence of fuel tax levied on taxable fuels used for business purposes. That section, and the paragraphs from the Revised Explanatory Memorandum extracted by the respondent, demonstrated an object not only to reduce the "administrative burden" or "compliance burden" of the former schemes, but to provide actual "excise relief" from the "burden of fuel tax", referring also to the White Paper at 97-102. In this context, the respondent's reliance on the asserted "object of simplification" as supporting what was claimed to be a less "complex" construction of "public road" than that advanced by the applicant was misplaced, the applicant submitted. The applicant referred to Carr v Western Australia [2007] HCA 47; 232 CLR 138 at [5], in a passage recently cited in Australian Mines and Metals Association Inc v Construction, Forestry, Maritime, Mining and Energy Union [2018] FCAFC 223; 363 ALR 343 at [80], for the proposition that the general rule that legislation ought to be construed purposively "may be of little assistance where a statutory provision strikes a balance between competing interests, and the problem of interpretation is that there is uncertainty as to how far the provision goes in seeking to achieve the underlying purpose or object of the Act". The respondent's construction, the applicant submitted, created a broader base for the collection of the road user charge and thus increased the excise burden, contrary to what may be considered to be the overarching legislative purpose.
52 The applicant submitted the respondent's reliance on the scope of the Ministerial power to set the rate of the road user charge as signifying the breadth of the expression "public road" was also problematic. The respondent's observation that the Minister had "significant latitude" in determining the rate of the road user charge in circumstances where it applied did not answer the question of whether it applied in the first place and, thus, the meaning of "public road".
53 The applicant submitted the respondent's argument that the statutory purpose of the road user charge was "to recover any public cost that the Minister could take into account in setting the road user charge" was therefore circular. It disregarded the "not controversial" fact that the sphere of operation of the road user charge was tethered, by the language used by the legislature, to the concepts of road use, travelling on a road and "public road". Whatever factors the Minister may take into account when setting the rate of the road user charge - be they environmental costs, road maintenance costs or other externalities - the Minister's power did not extend to determining the fuel base that was subject to charge, the applicant submitted.
54 The applicant's argument was that, as accepted by the Tribunal at [27], the costs to government of the construction and maintenance of roads lay at the centre of the determination-making power. The Tribunal should have found that those same considerations also lay at the centre of the meaning of "public road". Further, the extrinsic materials which reflected an expectation as to how the road user charge would be calculated and how it had in fact been calculated at the time of the various amendments to s 43-10 of the Fuel Tax Act - that is, by reference to public expenditure on the maintenance of non-tolled roads - were relied upon by the applicant, not as matters said to constrain the Ministerial power per se, but to illuminate the historical context in which Parliament used the expression "public road" to delimit whether that charge would arise.
55 The applicant submitted that the respondent's alternative construction of a "public road" as one in respect of which "the public bear some risk, responsibility or cost" was an unsatisfactory statement of the scope of the expression. The statutory scheme acknowledged that the public at large bore risks, responsibilities and costs in respect of all road travel (eg, environmental risks/costs, per s 41-25). The applicant submitted that adoption of this construction would thus make every road a "public road", giving the word "public" no work to do. This alternative construction should be rejected by reference to the same considerations of legislative purpose, the applicant submitted. The central considerations identified by the Tribunal were a reason to conclude that a "public road" was one in relation to which construction and maintenance costs were principally borne by the public, the applicant submitted, not any road in relation to which the public bears any cost.