(a) Each citizen of the United States who has attained the age of eighteen years, and who is a bona fide resident of the town to which the citizen applies for admission as an elector shall, on approval by the registrars of voters or town clerk of the town of residence of such citizen, as prescribed by law, be an elector, except as provided in subsection (b) of this section. For purposes of this section, a person shall be deemed to have attained the age of eighteen years on the day of the person’s eighteenth birthday and a person shall be deemed to be a bona fide resident of the town to which the citizen applies for admission as an elector if such person’s dwelling unit is located within the geographic boundaries of such town.

Terms Used In Connecticut General Statutes 9-12

(b) Any citizen who will have attained the age of eighteen years on or before the day of a regular election may apply for admission as an elector. If such citizen is found to be qualified the citizen shall become an elector on the day of the citizen’s eighteenth birthday. The registrars shall add the name of any person applying under this subsection, if found qualified, to the registry list and, if applicable, to the enrollment list, together with the effective date of his registration. The registrars may place the name of each such person at the end of the registry and enrollment lists for the voting district.