Article 90

Where new circumstances so require, the provisions of this Chapter relating to the  Community's right of ownership may, at the request of a Member State or of the  Commission, be adjusted by the Council, acting unanimously on a proposal from the  Commission and after consulting the European Parliament. The Commission shall  examine any such request made by a Member State.

Article 91

The system of ownership applicable to all objects, materials and assets which are not vested in the Community under this Chapter shall be determined by the law of each Member State.

CHAPTER 9

THE NUCLEAR COMMON MARKET

Article 92

The provisions of this Chapter shall apply to the goods and products specified in the  lists forming Annex IV to this Treaty.

These lists may, at the request of the Commission or of a Member State, be amended  by the Council, acting on a proposal from the Commission.

Article 93

Member States shall abolish between themselves, one year after the entry into force of this Treaty, all customs duties on imports and exports or charges having equivalent effect, and all quantitative restrictions on imports and exports, in respect of:

a.products in List Al and A2;
b.products in List B if subject to a Common Customs Tariff and accompanied by  a certificate issued by the Commission stating that they are intended to be used  for nuclear purposes.

Non European territories under the jurisdiction of a Member State may, however,  continue to levy import and export duties or charges having equivalent effect where  they are of an exclusively fiscal nature. The rates of such duties and charges and the  system governing them shall not give rise to any discrimination between that State  and the other Member States.

Article 94

The Member States shall set up a Common Customs Tariff in accordance with the  following provisions:

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