Article 91

If an undertaking does not pay by the time limit set a sum, which it is liable to pay the  Commission either under this Treaty or rules laid down for the implementation thereof or in  discharge of a pecuniary sanction or periodic penalty payment imposed by the Commission,  the Commission may suspend payment of sums which it is liable to pay to that undertaking,  up to the amount of the outstanding payment.

Article 92

Decisions of the Commission, which impose a pecuniary obligation, shall be enforceable.

Enforcement in the territory of Member States shall be carried out by means of the legal  procedure in force in each State, after the order for enforcement in the form in use in the State  in whose territory the decision is to be enforced has been appended to the decision, without  other formality than verification of the authenticity of the decision. This formality shall be  carried out at the instance of a minister designated for this purpose by each of the  governments.

Enforcement may be suspended only by a decision of the Court.

Article 93

The Commission shall maintain all appropriate relations with the United Nations and the  Organization for European Economic Cooperation and shall keep these organizations  regularly informed of the activities of the Community.

Article 94

Relations shall be maintained between the institutions of the Community and the Council of  Europe as provided in a Protocol annexed to this Treaty.

Article 95

In all cases not provided for in this Treaty where it becomes apparent that a decision or  recommendation of the Commission is necessary to attain, within the common market in coal  and steel and in accordance with Article 5, one of the objectives of the Community set out in  Articles 2, 3 and 4, the decision may be taken or the recommendation made with the  unanimous assent of the Council and after the Consultative Committee has been consulted.

Any decision so taken or recommendation so made shall determine what penalties, if any may  be imposed.

If, after the end of the transitional period provided in the Convention on the Transitional  Provisions, unforeseen difficulties emerging in the light of experience in the application of  this Treaty, or fundamental economic or technical changes directly affecting the common  market in coal and steel, make it necessary to adapt the rules for the Commission's exercise of  its powers, appropriate amendments may be made; they must not, however, conflict with the

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