Qualification for Voting
Subject to the provisions of article 159 of the Constitution, every person may vote at election if he/she is of the age of eighteen years or upwards and is either a citizen of Guyana or a Commonwealth citizen domiciled and resident in Guyana.
GECOM Guyana Election Commission
Source -- http://www.gecom.org.gy/elections_in_guyana.html
(1) No person shall vote at an election unless he is registered as an elector.
Subject to the provisions of paragraphs (3) and (4), a person shall be qualified to be registered as an elector for elections if, and shall not be so qualified unless, on thequalifying date, h e is of the age of eighteen years or upwards and either ––
(a) is a citizen of Guyana; or
(b) is a Commonwealth citizen who is not a citizen of Guyana and who is domiciled and resident in Guyana and has been so resident for a period of one year immediately preceding the qualifying date.
Constitution of Guyana
Source -- http://www.wipo.int/edocs/lexd...ws/en/gy/gy009en.pdf