In 1970, after the expiration of the Mixed Commission established according to the Geneva Agreement, Presidents Rafael Caldera and Forbes Burnham signed the Port of Spain Protocol, which declared a 12-year moratorium on Venezuela's reclamation of Guayana Esequiba, with the purpose of allowing both governments to promote cooperation and understanding while the border claim was in abeyance.

The protocol was formally signed by the Minister of Foreign Affairs of Venezuela Aristides Calvani, Guyana State Minister for Foreign Affairs Shridath Ramphal and British High Commissioner to Trinidad and Tobago Roland Hunte.

[1] MPs from almost all parties in the Parliament of Venezuela voiced their sharp criticism of the agreement.

[2] In 1983, the deadline of the Port of Spain Protocol expired, and the Venezuelan President Luis Herrera Campins decided not to extend it anymore and resume the effective claim over the territory.

Since then, the contacts between Venezuela and Guyana within the provisions of the Treaty of Geneva are under the recommendations of a UN Secretary General's representative, who can occasionally be changed under agreement by both parties.