Additional Thoughts on Brexit and Public Procurement

I had the pleasure of participating in last night's seminar on Brexit and Public Procurement, which was part of the Brexit Seminar Series 2016/17 organised by the Centre of European Law of King's College London. There was interesting discussion of the WTO GPA, UNCAC and UNCITRAL model law requirements and the possibilities they bring after Brexit, including a rather subtle argument why the UK may retain its condition of party to the WTO GPA on the basis of its final provisions in its Article XXII--which I either did not fully understand, or really do not see working out.

However, there was also a good measure of wishful thinking based on the opportunities that dropping the 'straitjacket of the EU single market approach' to procurement regulation could provide, as well as the possibilities that Brexit would bring in order to mend a system that is broken (with reference to both EU public procurement and State aid law), and which covers up an anti-British bias that can only get worse in the future if the Commission manages to adopt its 'Fortress Europe' strategy. I guess that, after this, my remarks (see presentation below) came in as a minoritarian and pro-EU reaction to these arguments. The rest of this post provides a synthesis of the arguments I made.

In order to counteract some of the arguments being made and, hopefully, to put the issue into broader perspective, I focused my remarks around whether the reform of [British] procurement regulation is feasible or a utopia (which links to my broader ideas on the difficulties of reimagining public procurement regulation). I broke this down in four parts: (1) the unavoidable costs of adopting a distinct 'Very British Model' (borrowing this label from Sarah Hannaford QC); (2) what is likely to happen with the Public Contracts Regulations 2015 immediately after Brexit; (3) what level of coordination between UK (Eng) and EU law should be achieved in the future; and (4) what can and should realistically be done to further reform (UK) public procurement law in the future.

1. On the unavoidable costs of a Very British Model, I guess that the simple insight I was trying to stress was that having diverging regulatory regimes increases the cost of doing business for companies aiming to serve markets where different procurement regimes apply. From the perspective of British companies (particularly SMEs, which PM May seems to be intent on actively supporting), this de facto makes it more difficult for them to export to the EU if they get used to a different domestic regulatory regime.

This can in turn result in a change of supply chains where EU 'importers' acquire the goods (works less well for services) from UK manufacturers and then sells them to the public sector in the rest of the EU, which will require the creation of commercial mark-ups / margins that may well wipe out any financial advantage derived from the taking of the Sterling, as well as any increases in productivity in the future.

Moreover, a Very British Model that significantly deviated from the current EU system would create a significant barrier for cross-border collaboration with other public buyers in the EU (which was mentioned could be particularly relevant in terms of defence procurement, given recent policies to boost EU's military capabilities through a joint defence fund), but also with potential third countries (eg Canada). It would also make negotiations to gain (or retain) membership of the WTO GPA and to subject internationally funded (large infrastructure) projects to the revised Very British System because international partners may need to be convinced that, though different, that new system complied with their requirements. If nothing else, this will be a drain of international and trade negotiators' time and energy.

2. On the likely  immediate future of the Public Contracts Regulations 2015, it is hard to make a forecast. Short of their total repeal and the creation of a massive regulatory vacuum in the control of public expenditure in the UK (which I do not think likely, and certainly hope not to be pursued), the PCR2015 are likely to stay in the books for a while (with or without Great Repeal Bill).

It is possible that the UK Government is tempted to chop bits of them off the statute book. Either suppressing the remedies they create for non-domestic bidders, as suggested by Prof Arrowsmith, and which I consider a daft strategy--for the lack of a better term--because it will not only alienate foreign bidders and international trading partners, but also be easy to circumvent through formal submission of tenders by UK-based entities. Or else shooting holes in the PCR2015 to get rid of parts that may be considered particular examples of bar procurement regulation (say, the use of self-declarations in the form of the ESPD). That would diminish the consistency of the regulatory system and could create undesirable effects.

Overall, as I said before, in the short run, the would be better off by completely keeping the status quo ante Brexit (including remedies for international tenderers and investors) if it wants to preserve its (diplomatic) options of a swift conclusion of procurement-related trade agreements, as well as preventing disruption in investment and infrastructure projects.

3. On the desirable level of coordination between future UK rules and EU public procurement law, including the CJEU case law, I submitted that, regardless of the formal legal obligations to comply with CJEU case law under EEA or other types of agreements, from a normative point of view and at least for as long as the law on the books reads the same way (ie up and until there is a repeal and substitution of the PCR2015), UK law should continue to be substantively coordinated with EU public procurement law.

For two reasons. First, because deviations will create the same additional costs of doing business indicated above (1). And, second, because on the whole (and I am not one to cosy up to the CJEU), I consider that its public procurement case law has been progressive and positive, and helped shape a regulatory system that is massively misunderstood and misconstrued, particularly but not only in the UK (more below).

4. On the productive ways in which [British] public procurement can be reformed in the longer run, I took the seemingly radical view that legal reform should not be the main focus and that there are more pressing issues that can only be sorted out with significant investment (which, of course, triggered the reaction from the floor that 'it ain't gonna happen' in this context and with the massive black hole that Brexit will create in the UK's public finances between now and, at least, 2021). I also stressed that the UK had shown no regulatory creativity whatsoever in the transposition of the 2014 Public procurement package, which indicates that there is a lack of direction and strategy on which to build a significant reform of the current system.

I stressed that most of the complaints against the EU public procurement rules coming from the business community, and particularly SMEs, would equally exist with any regulatory regime that imposed any level of red tape on businesses because that is, quite simply, in the nature of things. Same goes for the criticisms from the public sector. Of course, the existing rules are perfectible (topically, on the need to reform the Remedies Directive), but no system will ever be perfect and there is a level of discomfort with public procurement rules that needs to be accepted as trade off for the anti-corruption and pro-competitive / value for money results they achieve.

Additionally, significant problems of legal certainty and difficulties in the coordination of different sets of procurement rules are exclusively a domestically created issue. For example, the difficult coordination of general procurement rules under the PCR2015 and those applicable to healthcare procurement in the context of NHS England are a UK problem that can, and must, be resolved domestically (see eg here, with a focus on conflicts of interest). 

Moreover, I also stressed that the EU public procurement rules are greatly misunderstood and construed as imposing a tight straitjacket on both procurers and businesses. That is simply not the case, particularly after the revision of the 2014 Public procurement package, which has created enormous spaces for administrative discretion and negotiations--that have in turn triggered the need, more than ever, for a competition-oriented interpretation and implementation of the rules.

My view, and I am happy to expand it, is that properly understood and applied, the current EU rules allow for all the goals I have so far heard businesses and public sector officials indicate they want from a revised [British] public procurement system--except those linked to a protectionist industrial policy, which are economically unwise and undesirable in any case.

The real problem is that an improvement of procurement practice requires three main (and very expensive) changes: (a) a serious investment in technology and the effective roll out of eProcurement; (b) significant investment in human capital and the upgrade of the public sector skill set (particularly in non-legal aspects linked to market intelligence and procurement best practice, along the same lines stressed by the European Court of Auditors in the context of EU institutional procurement); and (c) significant investment in strengthening the public oversight powers of entities such as the National Audit Office and the Office for Budget Responsibility (on the worrying contrary trend, see here) so as to reduce the dependence on (and incentives for) private litigation as the only (meaningful?) check on the way procurement is carried out.

Overcoming this problem requires investment and long-term planning. Two things that seem to go against the very grain of the Brexit process. So, overall, I would not hold my breath. I would more generally not expect any significant change in the way procurement is carried out in the UK in the short to medium term, which in itself can create problems in the longer run.

ECJ new recommendations on the initiation of preliminary ruling proceedings sends clear signal to UK Supreme Court that the Miller case must be referred

The Court of Justice of the European Union (CJEU) has published today a new set of Recommendations to national courts and tribunals, in relation to the initiation of preliminary ruling proceedings [2016] OJ C 439/1. This is a very timely document, which clarifies the circumstances under which a reference for a preliminary ruling can or must take place, as well as the basic parameters that those requests must meet in order to effectively enable the CJEU to issue preliminary rulings, including in cases requiring particularly expeditious handling.

In the context of the Brexit related litigation before the UK Supreme Court in the appeal of the High Court's Miller decision, these Recommendations are particularly timely and relevant. There has been a very intense discussion by distinguished legal scholars about the existence or not of an obligation to refer the case to the ECJ for interpretation of Article 50 TEU--and, in particular, in relation with the (ir)revocability of an Art 50(1) notice in view of Art 50(2) TEU. The positions are too wide to discuss here (see this very useful compilation of materials), and I hold the relatively minoritarian view that the UK Supreme Court is under an absolute and inexcusable obligation to request a preliminary ruling on the interpretation of Article 50 TEU.

I find additional support for my view and the underlying interpretation of the CILFIT test in para [6] of the CJEU's Recommendations, which very clearly indicates that:

Where a question is raised in the context of a case that is pending before a court or tribunal against whose decisions there is no judicial remedy under national law, that court or tribunal is nonetheless required to bring a request for a preliminary ruling before the Court (see third paragraph of Article 267 TFEU), unless there is already well-established case-law on the point or unless the correct interpretation of the rule of law in question admits of no reasonable doubt (emphasis added).

Para [3] is also relevant in its stress that:

The jurisdiction of the Court to give a preliminary ruling on the interpretation or validity of EU law is exercised exclusively on the initiative of the national courts and tribunals, whether or not the parties to the main proceedings have expressed the wish that a question be referred to the Court (emphasis added).

In my opinion, the CJEU has sent the clearest possible message to the UK Supreme Court: they expect a request for an interpretation of Article 50 TEU. And the UK Supreme Court will be well advised to do so as soon as possible, once all intervening parties have presented their arguments. Tertium non datur.

Cross-border joint public procurement: some reflections on the puzzling Art 39(2) Dir 2014/24

I gave a seminar on "The emergence of trans-EU public law: public procurement as a case study" yesterday at UEA Law School. My presentation (below) was largely based on this earlier paper of mine, where I discuss the new rules on centralised, joint and cross-border procurement in Directive 2014/24/EU (Arts 37-39). It also aimed to go beyond the technical aspects of the paper in exploring how these new mechanisms of cross-border cooperation between public buyers can help us identify the emergence of trans-EU public law, either of a substantive or 'conflict of laws' type.

The discussion eventually turned on Art 39(1)II Dir 2014/24, which states: "Contracting authorities shall not use the means provided in this Article [ie mechanisms of cross-border collaborative procurement] for the purpose of avoiding the application of mandatory public law provisions in conformity with Union law to which they are subject in their Member State."

This can be seen as an anti-circumvention clause aimed at ensuring that contracting authorities do not seek to disapply mandatory domestic rules by 'escaping' their jurisdiction through international collaboration--and, consequently, as a rule aimed at preserving the competential split between Member States and the EU in an area that arguably exceeds the procurement remit and goes to the core of the principle of national procedural and organisational autonomy.

However, participants in the seminar raised the point that it can also be seen as a 'Trojan horse' indicating further legal integration (and further regulation of these mechanisms in a future 6th iteration or generation of EU public procurement Directives) through the test of 'EU compatibility' of domestic mandatory public law provisions. I find this a very interesting thought, which is worth exploring in more depth. For now, I can only offer a few initial reflections.

From that perspective of 'EU law tests creeping into mandatory domestic public law requirements', and taking the example of free movement of goods, the question would be whether Art 39(1)II Dir 2014/24 does no more than recreate the mechanism of Art 36 TFEU--ie bring to the area of public procurement a 'public policy' (+ proportionality) test that mandatory public law requirements need to meet in order to justify the restriction on free movement that derives from preventing contracting authorities from resorting to enabling provisions for collaborative cross-border procurement. Or, on the contrary, whether it creates a separate test of 'EU law compatibility' that can actually go beyond what could be defended by Member States from a free movement of goods perspective by forcing an interpretation based on the effet utile of the rules in Dir 2014/24 itself--which would, almost by definition, result in more limited scope for absolute restrictions on the possibility to engage in collaborative cross-border joint procurement.

Either way, and having in mind recent cases on 'public policy' justifications for restrictions on free movement of goods, such as the DocMorris 2 case, it seems plausible that Art 39(1)II Dir 2014/24 may effectively be used in the future to demolish traditional public law requirements applicable to public procurement (such as subjection to domestic public contract law, language requirements, etc) on the basis that they disproportionately (or absolutely) restrict the possibility to engage in collaborative cross-border procurement.

For the purposes of the emergence of trans-EU public law, this would be a clear lever for the transformation of Member States' domestic public law requirements applicable to procurement activities, not least because internal market-type analysis would start being applied to public purchasing arrangements and their regulation in a different and possibly more stringent fashion.

So this is an area where I plan to keep an eye in the future and where I would appreciate input concerning any cases that may be developing at domestic level in the Member States. Either now or in the future.

Is the UK moving towards 'innovative small business' procurement set-asides? Would it be a desirable move?

PM Theresa May announced yesterday that the UK Government is to look at how its own public procurement can be used to drive innovation in small businesses that “not only spurs innovation in the public sector, [but] gives new firms a foot in the door”, as part of a review into the Small Businesses Research Initiative (SBRI). It is not clear what innovation in small businesses means, as it could both refer to technologically-innovative small businesses, or to diverse or new forms of small businesses (as part of social or economic innovation more generally).

It is worth noting that PM May indicated that the UK could follow the example of the US government, which concentrates its small business policy in the Small Business Administration (SBA) and the small business set aside of federal government contracts. This seems to indicate a preference for the second type of small business policy (ie a policy for diversity in small businesses, or in support of new business governance forms, on which see here).

In the US, the current, government-wide procurement goal stipulates that at least 23% of all federal government contracting dollars should be awarded to small businesses. This figure is further broken down into additional targeted sub-goals for: Women Owned Small Business (5%), Small Disadvantaged Business (5%), Service Disabled Veteran Owned Small Business (3%) and Historically Underutilized Business Zones (HUBZone) (3%). Notably, none of these set asides are technology-innovation driven, but rather aim to support targeted social groups through a reverse discrimination approach in the award of public contracts.

It is also possible that what PM May had in mind is closer to a policy to provide support for technological innovation-driven small businesses, particularly as she said the review would look at how they could “increase its impact and give more innovators their first break”. 

This is a policy that, even without the industrial policy pressures related to Brexit and its surrounding negotiations and attempts of political capture by economic interest groups, other political parties are seeking to explore in other EU countries. For example, in Spain, a proposal to introduce set-asides of 3% of public contracts for 'legally certified innovative SMEs' was floated recently (see criticism by Dr Pedro Telles and myself here). Thus, a certain trend seems to be emerging in the area of innovation oriented industrial policy, which seems to be the early 21st century hype.

One of the main hurdles to the creation of small business set asides in EU countries derives from EU public procurement law itself, which simply bans this option. Further, the EU's negotiating position in international procurement treaties, and in particular in the WTO Government Procurement Agreement (GPA), have locked in an anti-SME set-aside policy approach (as discussed by K Dawar and M Skalova, 'The Evolution of EU Public Procurement Rules and its Interface with WTO: SME Promotion and Policy Space' in GS Ølykke & A Sanchez-Graells, Reformation or Deformation of the EU Public Procurement Rules (Elgar, 2016)]. 

For the UK, then, the prospect of Brexit may change the legal situation and open the door to an unrestricted 'innovative small business' set-aside policy. But this would only be possible provided the UK exited the single market and resiliated the EU's WTO GPA commitments and negotiating position regarding SME set-asides. This does not seem a likely, and indeed is not a desirable scenario, so the exploratory policy announcement made by PM May may well result in no relevant policy after all. In any case, and more importantly, before aiming to the develop such a policy, the UK would be well advised to think hard about this and try to gain a more sophisticated understanding of the US' system.

Far from the rosy picture painted by PM May and others, the US federal government's set-aside programme is permanently criticised for the opacity of its direct and indirect costs to the tax payer [very clearly, see [AG Sakallaris, ‘Questioning the Sacred Cow: Reexamining the Justifi cations for Small Business Set Asides’ (2006–2007) 36 Public Contract Law Journal 685; and K Loader, ‘The Challenge of Competitive Procurement: Value for Money versus Small Business Support’ (2007) 27 Public Money and Management 307].

The system has clear explicit costs in terms of its administration and the litigation ensuing classifications of businesses as small or not (or innovative or not) in the first place. Additionally, and simply put, the main implicit cost of a small business set-aside programme, be it for innovative enterprises or of a general nature, is that it reduces competition for public contracts, and the reduction of competition resulting from this artificial division of the market comes at a cost in terms of potential higher contract prices as well as reduced incentives for innovation for non-small businesses [generally, see A Sanchez-Graells, Public Procurement and the EU Competition Rules, 2nd edn (Oxford, Hart, 2015) 60-77]. Thus, this is a very expensive system to run and, in a scenario of ever stronger competing pressures for public funds, legitimate questions can be raised about its desirability.

Moreover, already under the existing UK and EU rules, there are plenty opportunities to engage in a small business friendly management of public procurement without creating set aside programmes (see, for instance, the work of the Procurement of Innovation Platform). Providing better access to public procurement for small businesses has the advantage of making the process more accessible to all interested bidders and, in the end, has the potential of unlocking stronger competition for public contracts. This, of course, is also not a cost-free policy and it requires investment in training and skills in the public sector. However, this is bound to be a much more productive investment in the long run.

Overall, then, following PM May's announcement of the inclusion of government procurement in the innovation review, in my opinion, the best path to follow is to think seriously about how public procurement law can really be simplified and transformed in a way that benefits from technological development and with a view of closing the shortage of skills and human resources in the public sector. This is something that can and should be done independently of Brexit, and which can benefit every public procurement system (for my general ideas, see here). Conversely, starting a path of creation of set asides--and, more generally, the emerging policy of piecemeal deals to appease specific business interests--is only bound to leave the UK taxpayer worse off, Brexit or no Brexit (but particularly in the event of Brexit).

ECJ backs up tough Italian approach to exclusion of non-payers of social security contributions -- will this carry on under Directive 2014/24? (C-199/15)

In its Judgment of 10 November 2016 in Ciclat, C-199/15, EU:C:2016:853 (only in FR and IT), the European Court of Justice (ECJ) has issued a preliminary ruling concerning the compatibility with the pre-2014 EU public procurement rules (Dir 2004/18) of a set of Italian rules that mandates the exclusion of undertakings that have been found to have gravely failed to meet all their social security obligations at the time of the tender, and irrespective of any subsequent regularisation of the situation prior to the award of the contract, or even prior to the assessment of that situation by the contracting authority.

According to the relevant Italian rules, contracting authorities must exclude undertakings that have been definitively found to have committed serious offences regarding the payment of social security contributions in accordance with Italian legislation or that of the State in which they are established (C-199/15, para 8, own translation from French). The only tolerance against this ground of mandatory exclusion is that an offence against the social security will not be considered grave where the difference between the sums owed and those paid does not exceed EUR 100 and is less than 5% of the sums owed (C-199/15, para 11, own translation from French). 

The Ciclat case can be seen as a twin of the previous Judgment of 10 July 2014 in Consorzio Stabile Libor Lavori Pubblici (C-358/12, EU:C:2014:2063) where the ECJ assessed the compatibility with EU law of the same Italian rules for the exclusion of undertakings that have committed serious offences against the social security of their country of establishment, but in the context of the procurement of contracts below the EU thresholds. In that case, the ECJ considered that the Italian rule was compatible with Articles 49 TFEU and 56 TFEU and the principle of proportionality. Equally and unsurprisingly, in Ciclat, the ECJ has determined that

Article 45 of Directive 2004/18 ... does not preclude national legislation ... which obliges contracting authorities to consider as grounds for exclusion an offense in relation to the payment of social security contributions, which is established in a certificate automatically requested by the contracting authority and issued by the social security institutions, where such infringement existed at the date of participation in a tender, even if it no longer existed on the date of the award of the contract or that of the automatic control by the contracting authority (C-199/15, para 40, own translation from French). 

Despite not advancing EU public procurement law in any relevant way, the Ciclat Judgment can be criticised on two accounts.

First, because the ECJ ducked a relevant question of reverse discrimination due to the different documentary rules applicable to Italian companies (which were subject to the stringent system of automatic certification by the social security administration that gave rise to the case), whereas non-Italian EU tenderers could benefit from the greater flexibility of self-certification (see C-199/15, paras 38-39). At some point, the ECJ will have to stop avoiding problematic issues of reverse discrimination and start constructing a better line of case law that is more attuned to the needs of undertakings competing in an internal market.

Second, the Ciclat Judgment can be criticised for its excessive rigidity. Not only due to the lack of consideration of the very low threshold amounts of tolerance for unpaid social security contributions (or taxes)--which was already the position after Consorzio Stabile Libor Lavori Pubblici--but also due to the irrelevance given to an effective remediation of the infringement by the tenderer, which goes against trends aimed at facilitating substantial compliance and corporate (voluntary) self-cleaning. 

However, this second criticism may seem as not really relevant from a practical perspective in view of the greater flexibility that Article 57(2) Dir 2014/24 has introduced if compared with Art 45 Dir 2004/18 (see discussion here). Indeed, under the 2014 rules, exclusion on the basis of an infringement of social security law (or tax law), even if the infringement has been established by a judicial or administrative decision having final and binding effect in accordance with the legal provisions of the country in which it is established, this exclusion ground will cease to apply where "the economic operator has fulfilled its obligations by paying or entering into a binding arrangement with a view to paying the taxes or social security contributions due, including, where applicable, any interest accrued or fines."

But a close consideration of this provision shows that the moment in which consideration must be paid by the contracting authority to the remedial action taken by the tenderer that was initially found to infringe social security (or tax) law is not specified, and therefore left to the national implementing conditions adopted in each Member State on the basis of Art 57(7) Dir 2014/24. Thus, a possible reading of Ciclat would be to consider that it is compatible with EU procurement law to establish the last date for the submission of tenders as the cut-off date for the assessment of compliance with (or remedy of an infringement of) social security (and tax) law--to the exclusion of any remedial action taken before the contracting authority evaluates the tenders, or even before the contracting authority actually assesses compliance with exclusion and selection criteria. In my view, that would deprive the new rules in Art 57(2) [and, for the same reasons, in Art 57(6) on self-cleaning] of practical effect.

Consequently, the Ciclat Judgment keeps adding reasons to the need to establish a special inter partes procedure where the contracting authority gives a chance to the undertaking to clarify its current situation of compliance or not with social security (and tax) requirements [but, more generally, in relation to any exclusion ground the contracting authority aims to enforce] before proceeding to its effective exclusion. This is not only a practical need, but a requirement derived from the general principles in the EU public procurement Directives and, more generally, the duty of good administration of Art 41 of the Charter of Fundamental Rights of the European Union. Fur further discussion of this important issue, see A Sanchez-Graells, "If it Ain't Broke, Don't Fix It’? EU Requirements of Administrative Oversight and Judicial Protection for Public Contracts", to be published in S Torricelli & F Folliot Lalliot (eds), Administrative oversight and judicial protection for public contracts (Larcier, 2017) forthcoming.

Why an appeal of the High Court Parliamentary approval Brexit judgment will bring the litigation to the cjeu?

The High Court has today issued its Judgment in the dispute about the UK Parliament's necessary approval of a Brexit notification--see R (Miller) -V- Secretary of State for Exiting the European Union [2016] EWHC 2768 (Admin). It has ruled that such Parliamentary approval is indeed required as a matter of UK constitutional and public law. The Government has already announced that it will appeal this decision to the UK Supreme Court (UKSC). The implications of such an appeal are important and need to be carefully considered. One such possible consequence is that the appeal (indirectly) brings the case to the docket of the  Court of Justice of the European Union (CJEU).

In my view, an appeal of the High Court's Judgment before the UKSC will indeed trigger a legal requirement under EU law for the UKSC to send a reference for a preliminary ruling to the CJEU. I have rehearsed most of my arguments on twitter earlier (see here and here) and this posts brings them together.

Basic EU Law Background

Article 267(1)(a) TFEU establishes the monopoly of interpretation of the CJEU and it indicates the Court shall have jurisdiction to give preliminary rulings concerning the interpretation of the Treaties. Article 267(2) then goes on to enable the domestic courts of the Member States to issue request preliminary rulings from the ECJ where questions of interpretation of EU law are raised before them and they consider that a decision on the question is necessary to enable them to give judgment. However, that discretion of domestic courts to request preliminary rulings from the CJEU does not apply to the courts or tribunals of a Member State against whose decisions there is no judicial remedy under national law. In that case, Article 267(3) indicates that where a question on the interpretation of EU law is raised, the highest court  shall bring the matter before the CJEU.

The uncertainties surrounding the interpretation of Art 50 TEU before the High Court

One of the extremely complex issues concerning the UK's potential withdrawal from the EU following the Brexit vote of 23 June 2016 concerns the interpretation of Article 50 TEU (on this, see here). One of the difficult sub-questions concerns the (ir)reversibility of an Art 50 TEU trigger notification. This is an essential element for an assessment of the UK's constitutional requirements for the delivery of such notification, as the High Court's Judgment makes clear.

Indeed, as a preliminary issue, in today's Judgment, the High Court has addressed the problematic interpretation of Art 50 TEU. Unanimously, the High Court has indicated that "Important matters in respect of Article 50 were common ground between the parties: (1) a notice under Article 50(2) cannot be withdrawn once it is given ..." para [10]; and that "Once a notice is given, it will inevitably result in the complete withdrawal of the United Kingdom from membership of the European Union and from the relevant Treaties at the end of the two year period, subject only to agreement on an extension of time ..." para [11].

There are two ways of interpreting the High Court's dealing with the argument on irreversibility of an Art 50 notification. First, that the High Court takes this approach in para [11] because it is common ground between the parties ex para [10]--what I would call the UK procedural approach. Second, that the High Court has of its own interpreted an Art 50 notification to be irreversible ex para [11], which happens to align with the common position of the parties in para [10]--what I would call the EU substantive interpretation approach.

The UK procedural approach is saved by the High Court's discretion under Art 267(2) TFEU to consider that the interpretation of Art 50 TEU is actually not necessary for it to adjudicate the matter at hand because this is not part of the controversy between the parties. However, the EU substantive interpretation does trigger some issues because, having recognised the interpretation of Art 50 TEU as an important aspect for the adjudication of the case, the High Court should not have taken it upon itself to interpret it and should rather have requested a preliminary ruling from the CJEU. However, unless under a very expansive interpretation of the principle of sincere or loyal cooperation in Art 4(3) TEU, this does not amount to a breach of EU law.

The uncertainties surrounding the interpretation of Art 50 TEU before the UK Supreme Court

Now, in case of an appeal of the High Court's decision before the UKSC, in my opinion, the referral to the CJEU is legally unavoidable (I will not deal for now with arguments of judicial politics or pragmatic views on the UKSC's likely course of action). Even if the parties do not challenge or even raise to the UKSC's consideration the matter of the (ir)reversibility of and Article 50 notification, it is a logical given that the UKSC needs to take a stance (even if implicit) on this point in order to be able to rule on the case. If it quashes the High Court's decision, it needs to clarify the points of law which the High Court would have gotten wrong--one of which concerns the irrevocability of an Art 50 notification. if it upholds the High Court's decision, it is (implicitly) accepting the assumption that an Art 50 notification is irrevocable. Either way, the UKSC cannot escape a substantial (implicit) consideration of the interpretation of Article 50.

In my view, this engages the UKSC's obligation to request a preliminary ruling from the CJEU under Article 267(3) TFEU and not doing so triggers a risk of infringement of EU law by the UK due to the acts (or omission, in this case) of its highest court.

Semi-Advanced EU Law Background

The UKSC's obligation to request a preliminary reference from the CJEU is controlled by the so-called CILFIT test, which establishes that "a court or tribunal against whose decisions there is no judicial remedy under national law is required, where a question of [EU] law is raised before it, to comply with its obligation to bring the matter before the Court of Justice, unless it has established that the question raised is irrelevant or that the [EU] provision in question has already been interpreted by the Court or that the correct application of [EU] law is so obvious as to leave no scope for any reasonable doubt. The existence of such a possibility must be assessed in the light of the specific characteristics of [EU] law, the particular difficulties to which its interpretation gives rise and the risk of divergences in judicial decisions within the [EU]" (283/81, EU:C:1982:335, para 21).

What does this mean for the UKSC in the Brexit litigation in case of appeal?

In short, my understanding of the CILFIT test is that a highest court of a Member State (the UKSC) must request a preliminary ruling on the interpretation of the Treaties to the CJEU and has no discretion not to do so unless: (a) the question is (objectively) irrelevant for the adjudication of the case, or (b) the provision has already been interpreted by the CJEU, or (c) there is no scope for reasonable doubt in the interpretation of the provision. None of these apply in the specific case of the Article 50 litigation.

First, it is inconceivable to me to argue that the interpretation of Art 50 and the (ir)revocability of a notice under it is irrelevant for the adjudication of this case. A different issue would be whether the UKSC could pragmatically sidestep the need to engage in that interpretation, either by presuming its content (the EU substantive interpretation approach mentioned above), or by insisting on the fact that it is common ground to the parties to the litigation and, therefore, the issue of the (ir)revocability of the notification is not (formally, explicitly) raised before it (the UK procedural approach.

However, in my opinion, neither of these avoidance strategies would meet the basic requirements of good faith in the interpretation of the CILFIT test, coupled with Article 4(3) TEU, which requires the domestic court to assess the need to request a preliminary ruling "in the light of the specific characteristics of [EU] law, the particular difficulties to which its interpretation gives rise and the risk of divergences in judicial decisions within the [EU]". The interpretation of Article 50 TEU is, to put it simply, the most relevant EU constitutional law issue since the OMT litigation and one of the top, if not the top, EU constitutional law issue since the entry into force of the Lisbon Treaty. Engaging in semantics in the analysis of the first prong of the CILFIT test against this background (ie, stretching the narrow interpretation "irrelevant") seems to me logically and legally unacceptable.

Second, it is plain that Art 50 has not been interpret by the CJEU yet. And, thirdly, it is also plain that there is scope (massive scope, a gaping hole) for reasonable doubt in the interpretation of Article 50 TEU. Thus, the so-called acte claire doctrine (ie the counterbalance of the CILFIT test) simply does not apply here.

Overall, in my opinion, the UKSC has an absolute and inexcusable obligation to request a preliminary ruling on the interpretation of Article 50 TEU from the CJEU the moment the appeal against the High Court's Judgment (eventually) reaches its docket. Otherwise, the UKSC risks triggering an infringement of EU law and eventually creating liability in damages under the Kobler / Traghetti del Mediterraneo strand of case law on State liability. Again, I am not dealing with the arguments on the likelihood of an actual infringement case brought forward by the European Commission, or the CJEU's eventual decision. I am, for now, simply stressing the state of EU law, which the UKSC would be well advised to bear in mind and uphold, unless it aims to contribute to the deterioration of the rule of law in the UK and the EU (which is something that keeps me awake at night).