Vt. Stat. Ann. tit. 17, § 2533

If the town clerk finds an application for an early or absentee voter ballot that has been submitted to him or her to be invalid or incomplete, he or she shall immediately notify the person making the application, either personally or by mail, stating the ground on which the same is found to be invalid. The application may be corrected but shall not be valid unless it is returned corrected to the clerk within the time allowed for submitting an original application.