If you are interested in information about how to renounce or relinquish your U.S. citizenship in Guyana, please send an email to ACSGeorge@state.gov . You will receive a complete set of instructions and forms by email. General information is available at https://travel.state.gov/content/travel/en/legal/travel-legal-considerations/us-citizenship/Relinquishing-US-Nationality-Abroad.html