A voter who is not enrolled in a party may enroll at any election by personally filing the application required by section 142 with the election clerk in charge of the ballots, after which the applicant may vote. If the applicant votes by absentee ballot, the applicant may enroll by filing the enrollment application with the absentee ballot, except that the enrollment application may not be sealed in the absentee ballot envelope. [2001, c. 310, §6 (AMD).]