II SÉRIE-A — NÚMERO 129

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Article 20

Co-operation between the EPLO Regional Branch in Portugal and the Portuguese Republic

1. The EPLO Regional Branch in Portugal shall cooperate at all times with the competent authorities of the

Portuguese Republic to facilitate the enforcement of the Portuguese legislation, to facilitate the proper

administration of justice, to ensure the enforcement of the police regulations and to prevent the occurrence of

any abuse in connection with the privileges and immunities referred to in this Agreement.

2. The present Agreement does not prejudice the right of the Portuguese Republic to take all the measures

consistent with international law to guarantee order and public security.

CHAPTER IV

SETTLEMENT OF DISPUTES

Article 21

Settlement of disputes with third parties

Disputes arising from contracts and other disputes of private law character to which the EPLO Regional Branch

in Portugal and a Portuguese. person or entity are party shall be submitted to arbitration under the Portuguese

legislation, except if the contract provides for submission to other jurisdiction, namely the Portuguese courts.

Article 22

Submission to international arbitration

When requested by the Portuguese Republic or the EPLO, the EPLO Regional Branch in Portugal shall submit

to international arbitration all disputes that:

a) Result from damages caused by the EPLO Regional Branch in Portugal;

b) Involve any other non-contractual liability of the EPLO Regional Branch in Portugal;

c) Involve the Director, any other official or an expert of the EPLO Regional Branch in Portugal, in which the

person concerned can claim immunity from jurisdiction under the present Agreement, if such immunity has

not been waived

Article 23

Settlement of disputes between the EPLO and the Portuguese Republic

1. Any dispute between EPLO and the Portuguese Republic concerning the interpretation or application of

this Agreement shall be settled, as far as possible, though negotiation or other agreed form of settlement.

2. If the dispute cannot be settled within six months, it shall be submitted, at the request of either Party, for

decision to an ad hoc arbitral tribunal.

3. The arbitral tribunal shall be constituted of three arbitrators appointed in the following manner:

a) Each Party shall appoint an arbitrator within two months of the receipt of the written request for arbitration;

b) Together and within two months, the two arbitrators appointed shall appoint a national of a third State with

whom both Parties have diplomatic relations as president of the arbitral tribunal.

4. If the arbitral tribunal is not constituted within four months of the receipt of the written request for arbitration,

either Party may request the President of the International Court of Justice to make the necessary appointments.

5. If the President of the International Court of Justice is a Portuguese national or is prevented from making

the appointments for any other reason, the next member in the hierarchy of the International Court of Justice who

is not a Portuguese national or who is not prevented shall be requested to make the appointments.

6. The arbitral tribunal shall determine its own rules of procedure and shall render its decisions in accordance