7.  The applicant is a limited company (société anonyme), which, in accordance with a resolution of its general meeting of 3 March 2000, is in voluntary liquidation. It was represented by its liquidator Mr Jean-Luc Sauvage, who was appointed by a decision of the Nanterre Commercial Court dated 6 March 2000. 8.  The company Société des Mines de Sacilor Lormines, a sub-subsidiary of Usinor, was set up in 1978 to take over, by virtue of a transfer decree of 28 March 1979, the concessions and leases of the Sacilor iron-ore mines in Lorraine. 9.  The applicant subsequently took over other concessions, in particular those of the company Société des Mines du Nord-Est and its subsidiary Société de Droitaumont-Giraumont. It thus held a total of 63 iron-ore mining concessions in Lorraine on the date when it announced that it was to shut down its mining operations. Iron-ore mining had been in constant decline since 1963. The company was forced to discontinue its mining activity because worldwide competition meant that it was no longer profitable to mine iron-ore in Lorraine. The applicant company's iron-ore production had thus fallen from 13,940,000 tonnes in 1978 to 4,300,000 tonnes in 1991. As the demand for the applicant company's phosphoric pig iron had slowly dwindled away, it decided in 1991 to halt production. The closure of the various pits was staggered between 30 June 1992 and 31 July 1993. The applicant company had to stop all extraction operations in July 1993. It underwent privatisation in 1995 and in 1997. 10.  With a view to the complete cessation of its activity, the applicant company initiated the appropriate procedures for the abandonment and renunciation of its concessions. The abandonment procedure, for the purpose of decommissioning and stabilising disused mining installations, entails the implementation of an order (arrêté) in which the requisite abandonment operations are stipulated by the prefect having territorial jurisdiction. It ends when the authorities are able to confirm that the requirements have been fulfilled. The renunciation procedure terminates the concession with the result that its holder is no longer bound by the special mining regulations and is released from the presumption of liability in respect of any damage which occurs above ground. At the time when the cessation of the company's operations was announced, the abandonment and renunciation procedures were governed by Articles 83 and 84 of the Mining Code and by Decree no. 80-330 of 7 May 1980 concerning mining and quarrying regulations. Law no. 94-588 of 15 July 1994, amending certain provisions of the Mining Code, repealed Articles 83 and 84 and replaced them by Articles 79 and 84. Decree no. 95-696 of 9 May 1995, issued after consultation of the Conseil d'Etat, pertaining to the opening of mines and mining regulations, was adopted for the implementation of those provisions. Lastly, Law no. 99-245 of 30 March 1999 concerning liability for damage resulting from mining and the prevention of mining-related risks after discontinuance, brought about further amendments to mining law (see paragraphs 29 to 33 below). 11.  Numerous regulatory measures (over twenty) were taken in this connection against the applicant company, which challenged them all in the Administrative Courts of Strasbourg and Nancy. The applicant company also lodged numerous appeals seeking the annulment of refusals by the Minister responsible for mining to accept its renunciation of a number of concessions; it requested that the Minister be ordered to accept the renunciation of those concessions and sought compensation for the loss it had sustained as a result of the refusals. 12.  The inter-prefectoral order (prefectures of the Lorraine region, the département of Moselle and the département of Meurthe-et-Moselle) of 26 May 1997, laying down regulatory measures in the mining sector, imposed certain obligations on the applicant company:
...
“It is hereby decided as follows:
Article 1: The company Lormines ... shall be required, in a prompt manner, to appoint a panel of three specialists from outside the company, having submitted the composition of the panel for the prior approval of the prefects, and having regard to the opinion of the Regional Director for Industry, Research and the Environment of Lorraine, to carry out the following assignment:
- analysis of the parts of the mining installations referred to in the penultimate paragraph of the preamble, located between elevations NGF 115 and 172 in the municipalities (communes) of Auboue, Briey, Homecourt, Joeuf and Moutiers (Meurthe-et-Moselle), Moyeuvre-Petite, Moyeuvre-Grande, Roncourt, Sainte-Marie-aux-Chênes and Saint-Privat-la-Montagne (Moselle);
- classification of the parts of the mining installations thus enumerated according to the presence of both aggravating instability factors and vulnerability related to the type of dwelling at risk.
The company Lormines shall make available to the specialists any technical documents and archives in its possession concerning the operations in question. The company shall transmit to the prefect, within a period of ten days after the notification of the present order, the report issued by the said specialists on the completion of their assignment.
Article 2: The company Lormines ... shall take all necessary measures to ensure the permanent availability of an adequate and sufficiently large network of surveyors, in order to be in a position to implement, upon the request of the prefects, any monitoring and observation measures that may be required by the situation.”
Moreover, in an order of 18 July 1997, the prefects of Moselle and Meurthe-et-Moselle imposed the following on the applicant company:
...
“Having regard to the urgency;
Acknowledging the report of the experts appointed by the company Sacilor Lormines in accordance with the above-mentioned prefectoral order;
Recognising that, in the light of current knowledge, the appearance of cracks in buildings may be a preliminary indication of subsidence;
Upon the proposal of the Regional Director for Industry, Research and the Environment of Lorraine;
It is hereby decided as follows:
Article 1
The company Lormines ... shall take all necessary measures to ensure the permanent availability of an adequate and sufficiently large network of building experts, so that it is able to carry out, promptly and upon the request of the prefects, analysis of the cracks in buildings in the “yellow”, “orange” and “red” zones, the lower parts of buildings included, within the perimeter of the iron-ore mining concessions held by the company Lormines ... in the municipalities of Auboue, Briey, Homecourt, Joeuf and Moutiers (Meurthe-et-Moselle), Moyeuvre-Petite, Moyeuvre-Grande, Roncourt, Sainte-Marie-aux-Chênes and Saint Privat (Moselle);
The assessments carried out by those experts shall be reported in writing to the prefects concerned, in the appropriate time-frame and form such as to be compatible with the triggering of the alert procedure, should that prove necessary, or within 48 hours in other cases.
...” 13.  In letters of 2 July and 17 September 1997 the applicant company lodged administrative appeals with the Minister for Economic Affairs, Finance and Industry, requesting that he rescind the orders of 26 May and 18 July 1997 and seeking the reimbursement of the sums incurred in order to meet the requirements of those orders. The applicant company claimed that the order had failed to take account of the fact that it no longer operated the mines at issue and that the sites referred to in the order had undergone an abandonment and renunciation procedure. 14.  On 29 September 1997, acting upon an application from the Secretary of State for Industry, the Public Works Division of the Conseil d'Etat, under the presidency of Mr Le Vert, the reporting judge being Mr de la Verpillière, gave an advisory opinion concerning the “work of stabilising and rehabilitating the sites of disused mines – Powers of the authority vis-à-vis the mine operator – application of the Law of 15 July 1994”. ... That opinion was published in the annual report of the Conseil d'Etat for the year 1998 and reads as follows:
“The Conseil d'Etat (Public Works Division), has been called upon by the Secretary of State for Industry to answer the following questions: 1. Does not the immediate application of the new Article 84 of the Mining Code impair the established rights of the holders of mining concessions or licences, in so far as work commenced prior to this legislation is at issue? Should or could a limit be set on the regulatory obligations that may be imposed on them, since the objectives now enshrined in the mining regulations were clearly not envisaged when the operations were first started? 2. Should the principle of the proportionality of acts of the administrative authorities be construed as requiring the prefect to take account of the human, financial or technical means available to the operator when he imposes specific measures on the latter?
To what extent, should it prove impossible for the mine operator to implement the prefect's instructions, would the obligations thus imposed be assumed by the State and then performed and financed by the latter? 3. Could the possible extension introduced by the use of the term “measures” rather than “work” in Article 84 of the Mining Code lead to the imposition of other requirements, apart from those whose result is attainable within a period that is consistent with the need to bring an end to the special mining regulations, for example a pumping requirement, which could only be fulfilled in the long term, or in a period that would be difficult to foresee?
In the latter case, is there not a contradiction with Articles 46 and 49 § 2 of the decree of 9 May 1995, which seem, at least implicitly and for mines operated normally, to limit the imposition of mining regulations to the term of the mining concession?
Moreover, should the prefect confine himself to physical measures or is he entitled to impose financial measures such as payment to an organisation by way of performance? 4. Would it be feasible to arrange for part of the obligations imposed under mining regulations (for example those concerning the pumping of water or maintenance of equipment) to be assigned to a third party (company, consortium of public institutions, etc.)? Could the formal confirmation be issued once the prefect is able to observe that the operator has set up a structure providing for the performance of its obligations – or, on the contrary, can it only be issued once it has been observed that the prescribed measures have actually been carried out or completed? 5. In matters of ordre public (public policy), is the court entitled, and on the basis of what criteria, to consider that section 17 of the Law of 15 July 1994 has an immediate effect on contracts in progress? Would it be possible, if necessary, in the light of the Constitution, to enact legislation giving retrospective effect to the abovementioned section 17? 6. On the basis of what criteria is the court entitled to rule out the application of a clause releasing the mine operator from liability in respect of damage caused by its mining activity, in the event of transfer of ownership? In particular, is the court entitled to find such a clause null and void when the foreseeable or inevitable nature of the damage has been established? In such cases, is it necessary to prove that the operator was aware of the risk or does the existence of the risk suffice, in so far as the operator should have been aware of it? Moreover, may the seriousness of the damage be taken into account in the court's interpretation of the validity of such clauses?
[The Conseil d'Etat] is minded to answer the foregoing questions as follows: 1. As to the mining abandonment procedure (Article 84 of the Mining Code):
(a) A new legal rule will not apply to legal situations which have already become final on the date it enters into force. Accordingly, the abandonment of mining operations which began before the entry into force of the Law of 15 July 1994 will not be governed by the new Article 84 of the Mining Code, introduced by the said Law, if on that date the particulars of the work required for the stabilising and rehabilitation of the site have been irrevocably decided, pursuant to the former Article 83 of the Mining Code and to Articles 22 to 29 of Decree no. 80-330 of 7 May 1980, by the acceptance of the declaration of relinquishment or abandonment submitted by the operator, or by virtue of a prefectoral order prescribing the work to be carried out. In other cases the new Article 84 will be applicable, and it will of course govern the abandonment of mining work started after 15 July 1994.
(b) The principle of the “proportionality of acts of the administrative authorities” entails that the authorities require the operator to take only those measures that are necessary in order to fulfil the objectives and preserve the interests enumerated in Articles 79 and 84 of the Mining Code. In assessing what is necessary, the authorities are not bound by the human, financial or technical capacities of the operator.
(c) The authorities have an obligation to ensure compliance with the measures that they have prescribed pursuant to the abovementioned provisions. In the event of any failure to act on the part of the operator, for any reason whatsoever, they must assume their powers of substitution under the eighth and ninth paragraphs of Article 84. Failing that, the State's responsibility may be totally or partially engaged in the event of non-performance.
(d) It follows from all the provisions of Article 84 of the Mining Code that, unless otherwise agreed by the operator, the authorities cannot impose measures without fixing a time-limit. The performance of such measures cannot be required to continue in the long term, after the mining concession has expired, except in the case provided for under Article 48 of the decree of 9 May 1995.
(e) In order to obtain formal confirmation, the operator must have performed the prescribed measures itself and is not entitled to have them performed by a third party, even if it provides that party with the requisite financial means. 2. As to the validity of clauses in property transfer agreements which exclude the liability of the mining or prospecting company (section 17 of the Law of 15 July 1994):
(a) Subject to the independent findings of the competent courts, it would appear that section 17 of the Law of 15 July 1994, which renders null and void on public policy grounds any clause, in property transfer agreements between mining companies and local authorities or natural persons outside the profession, which excludes the liability of the company for any damage related to its mining activity, does not apply to agreements entered into before the entry into force of the said Law. Unless retroactive effect is expressly stipulated by the legislature, a new law will not affect the terms and conditions of an agreement that has become final prior to the entry into force of that law.
(b) Except in penal matters, the principle of non-retrospectivity of laws is not binding on the legislature, which may therefore decide to give retrospective effect to section 17 of the Law of 15 July 1994.
(c) It is not possible to give a general answer to the question concerning the possibility for the court to rule out the application of clauses releasing the vendor from liability. It will be for the competent courts to assess such clauses on a case-by-case basis in the light of Article 1643 of the Civil Code.” 15.  On 31 December 1997 and 17 March 1998 the applicant company applied to the Conseil d'Etat for a judgment declaring ultra vires and annulling the above-mentioned prefectoral orders and the implied decisions of 3 November 1997 and 18 January 1998 by which the Minister had refused to withdraw those orders. The applicant company sought the reimbursement of the expenses that it had paid out for the implementation of those orders. It claimed, in particular, that it was for the authorities to bear the cost of missions for the monitoring and verification of the measures that they themselves had imposed on the operator for the closure of the mines. Moreover, it argued that it no longer operated the mines at issue since 1993 and that, having complied with the requirements laid down by the prefect with regard to the abandonment of mining operations, it had been released from its obligations as concession-holder. In this connection it pointed out that for two concessions the renunciation had been accepted (Valleroy and Moutiers), whilst in the other cases, the abandonment had become effective after the completion of the work prescribed by the prefect in 1995 and 1996 or was still in progress. It lastly considered that, in respect of the former concessions in question, the declarations of abandonment and applications for renunciation had been filed with the prefecture before the entry into force of the Law of 15 July 1994 (see paragraph 31 below) amending certain provisions of the Mining Code and that those concessions could only therefore fall within the statutory and regulatory framework that existed prior to the entry into force of that Law (former Articles 83 and 84 of the Mining Code, see paragraph 29 below). 16.  On 21 March 2000 the President of the Judicial Division of the Conseil d'Etat wrote to the director of legal affairs of the competent ministry to express his concern about the ministry's shortcomings in the preparation of judicial cases which had been set down on a list of the Conseil d'Etat for hearing on 20 March 2000 and which had had to be struck out at the very last minute on account of belated production by the ministry. He gave the following explanations:
“As regards case no. 192947, you were notified of it on 9 March 1998. In the absence of any response on your part, you were again invited to adduce your observations on 16 July, 27 August and 29 September 1998 and on 8 April 1999.
Since a case has to be heard even if the authority fails to reply, the case was entrusted to a reporting judge, examined at the preparatory stage, transmitted to a Government Commissioner and set down for hearing on 20 March, with notice of the hearing being issued on 13 March 2000.
It was not until after that notice of hearing that you produced observations which were received by facsimile in the Conseil d'Etat on 18 March.
As the principle of adversarial proceedings required that your observations be communicated to the applicant company, the striking-out of the case was inevitable. This also happened, with a few minor differences, in case no. 194925. Such a situation is difficult to accept. For the purposes of preparing the case properly the judge sets time-limits for the parties. In some cases, if requested, an extension of the time-limit may be granted.
In the present case, however, it was only after two years and in spite of a number of reminders that you filed your observations, and you did so after the case had been set down for hearing, placing the Conseil d'Etat before the fait accompli and obliging it to strike out the case.
In 1998 the Prime Minister adopted specific measures to ensure the defence of the State in good conditions and the proper operation of judicial proceedings. It is regrettable that in this case his instructions were disregarded so patently.” 17.  In a judgment of 19 May 2000 (nos. 192947 and 194925), notified on 20 June 2000, the Conseil d'Etat, after joining the two cases, ruled as follows:
“... Under the first paragraph of Article 34 of the ... decree [of 9 May 1995 pertaining to the opening of mines and mining regulations]: 'The prefect shall decide, by way of an arrêté (order), on regulations applicable to mining. Except in cases of urgency or imminent danger he shall first invite the mine operator to submit its observations and shall set a time-limit for that purpose'. In view of the seriousness of the subsidence which occurred on 14 October 1996, 18 November 1996 and 15 March 1997 above various mines that had been operated by the company Société des Mines de Sacilor Lormines and having regard to the report filed on 20 May 1997 by the scientific advisory board set up on 25 March 1997 for that purpose, the prefects of Moselle and Meurthe-et-Moselle were legally entitled to issue the urgent order of 26 May 1997 requiring the applicant company to entrust to a panel of experts the analysis and risk assessment of a number of mining sites, and to have a network of surveyors permanently available in order to carry out the requisite supervisory measures. They were also entitled, on account of the urgency, without consulting the mine operator and as soon as the report had been issued by the experts appointed in the order of 26 May 1997, to require the company, in the order of 18 July 1997, to ensure that a network of building experts was permanently available. Accordingly, the arguments to the effect that those orders were issued without complying with the lawful procedure, in breach of the provisions of Article 34 of the decree of 9 May 1995, cannot be upheld.
Article 79 of the Mining Code, in the version deriving from the Law of 15 July 1994, reads as follows: 'prospecting and mining work shall comply with the restrictions and obligations pertaining to ... / public health and safety, ... [and] to the solidity of public or private edifices ... / When the interests mentioned in the previous paragraph are put at risk by such work, the administrative authority may require the prospector or mine operator to take any measures for the purposes of ensuring the protection of those interests within a given time-limit'. The last paragraph of Article 84 of the Mining Code, which lays down the rules governing the discontinuance of mining operations, provides as follows: 'When the measures provided for by the present Article, or those prescribed by the administrative authority pursuant to the present Article, have been executed, the administrative authority shall issue the prospector or operator with its formal confirmation of completion ...'. Article 49 of the decree of 9 May 1995 provides: 'the administrative supervision and the mining regulations shall cease to take effect on the date that the operator is issued with formal confirmation that the work has been completed ... / However, the prefect shall be empowered ... to take ... any measures that may be rendered necessary by incidents or accidents that can be attributed to former mining work, when such events are capable of damaging the interests protected by Article 79 of the Mining Code, until the expiry of the mining concession'.
First, contrary to what has been contended, the Law of 15 July 1994 entered into force as soon as it was published; subsequently, and notwithstanding the fact that the applications for abandonment of operations were submitted before the entry into force of that Law, the prefects of Moselle and Meurthe-et-Moselle legally implemented it.
Secondly, it follows from the combination of the provisions cited above that the completion by the operator of the work prescribed by the administrative authority for the purposes of closing a mine does not suffice to exonerate if from all liability unless and until it has been issued with formal confirmation of completion and, as regards any incidents and accidents that may interfere with the protection of the interests provided for under Article 79 of the Mining Code, for as long as the operator holds the mining concession. It follows from the documents in the case file that, with the exception of the concessions of Valleroy and Moutiers, the prefects of Moselle and Meurthe-et-Moselle had not issued formal confirmation of the completion of work in respect of the mines abandoned by [the applicant company], nor had they accepted the proposed renunciation of the concessions concerned. Subsequently, the prefects ... were lawfully entitled, except in respect of those parts of the municipalities that were located above the Valleroy and Moutiers concessions, to impose on the operator the necessary measures to prevent repetition of subsidence.
Under Articles 79 and 84 of the Mining Code, the administrative authorities are entitled to require the operator to take any measures for the purposes of guaranteeing public health and safety and the solidity of edifices, as provided for in Article 79 of the Code. These measures may consist both in studies for the assessment and enumeration of risks and in work to prevent or put an end to incidents.
It is hereby decided as follows:
Article 1: The implied decisions of 3 November 1997 and 18 January 1998 of the Minister for Economic Affairs, Finance and Industry and the orders of 26 May 1997 and 18 July 1997 are annulled in so far as they imposed on the [applicant company] measures of prevention, supervision and verification in respect of the areas of the municipalities located above the concessions of Valleroy and Moutiers of which the renunciation had been accepted by the authority.
Article 2: The State shall reimburse to Société des Mines de Sacilor Lormines, with interest, the sums pertaining to the sites in respect of which the decisions of the Minister are annulled by the present decision;
Article 3: The State shall pay to Société des Mines de Sacilor Lormines the sum of 20,000 francs under section 75-I of the Law of 10 July 1991.
...
After deliberation on 26 April 2000 in the presence of: Mrs Aubin, Deputy President of the Judicial Division, presiding; Mrs Moreau, Mr Durand-Viel, Section Presidents; Mr Dulong, Mr Pêcheur, Mr Levis, Senior Members of the Conseil d'Etat; and Miss Bonnat, Auditeur-rapporteur.” 18.  By a decree of 26 May 2000, the President of the Republic appointed Mr Pêcheur, a member of the Conseil d'Etat who had sat in the deliberation of 26 April 2000, to the post of Secretary General of the Ministry for Economic Affairs, Finance and Industry. 19.  On 17 January 2001 the applicant company brought proceedings in the Paris Administrative Court seeking the annulment of the implied decision of rejection resulting from the failure by the Minister for Economic Affairs to respond to its request for payment of the sum of 20,000 francs pursuant to Article 3 of the judgment of the Conseil d'Etat of 19 May 2000. By an order of 28 February 2001, the president of the Administrative Court transmitted the application to the Conseil d'Etat. 20.  Concurrently, the applicant company requested the Conseil d'Etat to order the State to pay a coercive fine of 2,000 francs per day to guarantee execution of the entire decision of 19 May 2000. 21.  In a judgment of 5 April 2002 (nos. 229499 and 231060), notified on 23 May 2002, the Conseil d'Etat found that the execution in question was incomplete:
“... the Minister for Economic Affairs, Finance and Industry ... ordered, on 23 July 2001, the payment of the sum of 71,745.60 francs for the reimbursement of the expenses incurred on the sites in respect of which the Minister's decisions had been annulled by the judgment of 19 May 2000. It follows from a calculation note produced by the authority that this sum consists of an indemnity of 66,000 francs, being the capital, which has not been disputed, and interest amounting to 5,745.60 francs. As regards the interest .... [it] should have run not from 19 May 2000, the date of the decision in which payment was ordered, but from the date on which [the applicant company] had actually paid the invoice of 31 October 1997 issued by the National Institute for the Industrial Environment and Risks. In view of the foregoing, [the applicant company] is justified in arguing that the judgment of 19 May 2000 has not been fully executed.
In the circumstances of the case it is appropriate to require the State ... to take, within a period of two months from notification of the present decision, as regards the start date for calculation of interest at the statutory rate, the necessary measures in order to ensure full execution of Article 2 of the judgment of 19 May 2000, and to order it to pay a coercive fine of 10 euros per day from the expiry of the said period if it has not by then fulfilled the said obligation.
...
After deliberation on 15 March 2002 in the presence of: Mr Labetoulle, President of the Judicial Division, presiding; Mr Durand-Viel, Mr Bonichot, Section Presidents; Mr Dulong, Mr Hoss, Mr Levis, Mr de Froment, Senior Members of the Conseil d'Etat; Mr Thiellay, Maître des Requêtes and Miss Vialettes, Auditeur-rapporteur.” 22.  Further to the above-mentioned orders of 26 May and 18 July 1997 and other orders of 12 August 1997 requiring the analysis of the parts of mining installations that were located in several municipalities which had not been covered by the expert's report prescribed by the inter-prefectoral order of 26 May 1997, and the classification of the parts of mining installations thus enumerated according to the presence of both aggravating instability factors and vulnerability related to the types of dwelling, the prefects of Moselle, Meurthe-et-Moselle and Meuse made an order dated 24 July 1998 containing the following requirements:
“ ...
Article 1
The company Lormines ... shall take all necessary measures, promptly and at the request of the prefects for the places concerned, to carry out an analysis of cracks in buildings or facilities located within the “yellow, orange and red” zones, which are indicated as being at risk from significant soil movements in the maps issued showing degrees of potential delayed subsidence, and which are situated within the ground areas of the iron-ore mining concessions held by the company Lormines on parts of the départements of Moselle, Meurthe-et-Moselle and Meuse.
The assessments shall be reported in writing to the prefects concerned, in the appropriate time-frame and form such as to be compatible with the triggering of the alert procedure, should that prove necessary, or within 48 hours in other cases.
...” 23.  The applicant company was unable to execute this order (non-execution at Moyeuvre-Grande) and execution was thus initiated by the State at the company's expense. In respect of this execution the applicant company was required to pay the sum of 18,572 francs, by a payment order of 7 February 2000 which it disputed before the Strasbourg Administrative Court. 24.  On 17 September 1998 the applicant company lodged with the Conseil d'Etat an application seeking the annulment of the inter-prefectoral order of 24 July 1998, for being ultra vires, and sought a stay of execution of that order. 25.  On 23 March 1999 the company applied to the Conseil d'Etat seeking the annulment of the implied decision of rejection resulting from the Minister's failure to reply to its request for the withdrawal of the inter-prefectoral order of 24 July 1998 and for payment by the State of an indemnity of 450,455 francs to compensate for the expenses it had incurred in implementing the impugned order. 26.  In its submissions of 21 February 2001 the applicant company asked to receive, prior to the hearing, copies of the mining-related opinions given by the administrative divisions of the Conseil d'Etat over the previous few years, as well as the submissions of the Government Commissioner. 27.  On 25 April 2001 the applicant company stated that it did not wish to maintain its requests for the withdrawal of the Government Commissioner and for disqualification of the section of the Conseil d'Etat to which the case had been assigned. 28.  In a judgment of 5 April 2002 (nos. 199686 and 205909), the Conseil d'Etat (with the same bench as for the above-mentioned judgment of 5 April 2002, nos. 229499 and 231060), after joining the two applications, dismissed the applicant company's clams:
...
“...
Concerning the submissions seeking the annulment of the inter-prefectoral order of 24 July 1998 laying down regulatory measures in the mining sector and the implied decision of rejection by the Minister for Economic Affairs, Finance and Industry further to an administrative appeal against that order:
... Fifthly, Article 79 of the Mining Code, in the version deriving from the Law of 15 July 1994, reads as follows: 'Prospecting and mining work shall comply with the restrictions and obligations pertaining to ... / public health and safety, ... [and] to the solidity of public or private edifices ... : When the interests mentioned in the previous paragraph are put at risk by such work, the administrative authority may require the prospector or mine operator to take any measures for the purposes of ensuring the protection of those interests within a given time-limit'. The last paragraph of Article 84 of the Mining Code, which lays down the rules governing the discontinuance of mining operations, provides as follows: 'When the measures provided for by the present article, or those prescribed by the administrative authority pursuant to the present article, have been executed, the administrative authority shall issue the prospector or operator with its formal confirmation ...'. Article 49 of the decree of 9 May 1995 provides: 'The administrative supervision and the mining regulations shall cease to take effect on the date that the operator is issued with formal confirmation that the work has been completed ... / However, the prefect shall be empowered ... to take ... any measures that may be rendered necessary by incidents or accidents that can be attributed to former mining work, when such events are capable of damaging the interests protected by Article 79 of the Mining Code, until the expiry of the mining concession'. Article 119-4 of the Mining Code provides: 'renunciation, whether total or partial, of rights to mine or quarry prospecting or exploration shall become final only after being accepted by the minister responsible for mining'. Article 34 of the decree of 19 April 1995 provides: 'Applications for renunciation of a mining concession shall be lodged with the minister responsible for mining. / ... Acceptance of renunciation shall be given in an order of the minister responsible for mining'.
Contrary to what has been contended, the Law of 15 July 1994 entered into force as soon as it was published and was to be applied to all mining concessions currently valid at that date. Subsequently, and notwithstanding the fact that the applications for abandonment of work and renunciation of concessions were apparently submitted before the entry into force of that Law, the prefects of Moselle, Meuse and Meurthe-et-Moselle legally implemented it. The applicant company cannot, in any event, appropriately rely on an argument based on a breach of the principles of legitimate expectation and legal certainty when the order appealed against was not made for the purposes of implementing European Community law.
Moreover, it follows from the combination of the provisions cited above that the completion by the operator of the work prescribed by the administrative authority for the purposes of closing a mine does not suffice to release it from all liability unless and until it has been issued with formal confirmation of that completion. In addition, when, as in the present case, any incidents or accidents occur, such as subsidence capable of undermining the solidity of public or private edifices, the prefect remains empowered to intervene, even if he has already issued formal confirmation of completion of the work required for the closure of the mine, for as long as the operator holds the mining concession. It follows from the documents in the case file that, whilst some of the mines enumerated in Article 2 of the order appealed had been the subject of an abandonment procedure, as had been confirmed by the Regional Director for Industry, Research and the Environment, none of the corresponding concessions, at the date of the order appealed, had expired or had been the subject of a renunciation procedure accepted by the minister, such express acceptance alone being capable, contrary to what has been argued in a new memorial filed the day before the hearing, regardless of the date of that acceptance, of giving full effect to any renunciation. Accordingly, the prefects of Moselle, Meuse and Meurthe-et-Moselle were lawfully entitled to require the operator to take the necessary measures to prevent repetition of land subsidence.
Sixthly, in accordance with Articles 79 and 84 of the Mining Code, the administrative authorities are entitled to require the operator to take any measures that may be required for the protection of the objectives of public health and safety and the solidity of edifices, as provided under Article 79 of that Code. Those measures may consist both of studies for the purpose of analysing and enumerating the risks of incidents and of work for the purposes of prevention or remediation.
...
The company Société des Mines de Sacilor Lormines is not justified in seeking the annulment of the inter-prefectoral order of 24 July 1998 and the Minister's implied decision of rejection ...”