(a) General rule.--At any time prior to the 30th day preceding an election, a commission may mail to any qualified elector whose name appears in any district register a notice setting forth the elector's name and address as it appears in the register and requesting the elector in case of any error to present the notice within ten days at the office of the commission to have the error corrected and warning that any discrepancy between the qualified elector's actual name and address and his name and address as recorded in the original register will constitute ground for challenging the elector's vote. The notice shall contain on the outside "Do not forward, return to board of elections" and a request of the postal service to return it within five days if it cannot be delivered to the addressee at the address given.

(b) Checkup by postal service.--At any time prior to the 30th day preceding an election, the commission may cause a checkup to be made by the postal service of any qualified elector whose name appears in any district register.

(c) Quadrennial checkups.--At least once in each four years the commission may conduct a checkup of each registered elector by either of the methods provided for in subsections (a) and (b).

(d) Failure to deliver notice.--Upon the return by the postal service of any notice which it has been unable to deliver at the given address because the addressee cannot be found there or upon report by the postal service that any registered elector does not reside at the address given on the registration card, the commission shall do one of the following:

(1) Direct an authorized employee to visit in person the address of the qualified elector and, if the employee finds that the qualified elector does not reside at the address, to leave at the address the notice prescribed by subsection (e).

(2) Mail to the registered elector at the address given on the registration card the notice prescribed by subsection (e). The notice shall be sent as first class mail and shall contain on the outside a request to the postmaster to forward it if the addressee does not reside at the address given thereon.

(e) Communication with commission.--The notice stipulated by subsection (d) shall require the registered elector to communicate with the commission by a date designated by the commission, which shall be not less than ten days nor more than 30 days from the service or mailing of the notice and in any case not later than the 15th day preceding an election, and satisfy the commission of qualifications as a qualified elector. At the expiration of the time specified in the notice, the commission shall cancel the registration of a person who has not communicated with the commission and proved qualifications as a qualified elector, except that, if a registered elector who has been mailed the notice prescribed by this subsection communicates with the commission claiming the right to remain registered at the address to which the original notice was mailed, the commission shall investigate and, if not satisfied of the right of the registered elector to remain registered at the address, shall cancel the registration of the elector. Every elector whose registration is canceled under this section must register in the manner provided by this part in order to be eligible to vote at any election.

(f) Elector in military service.--The registration of a person in military service shall not be canceled by reason of the failure of the person to reside at the address appearing upon the district register if the person resided at the address on the date of entering military service.

Cross References. Section 1506 is referred to in sections 1507, 1510, 1513 of this title.