The following persons are disqualified from registering to vote and from voting: 1. A person who has been convicted of a felony as defined in section 701.7 , or convicted of an offense classified as a felony under federal law. If the person’s rights are later restored by the governor, or by the president of the United States, the person may register to vote. 2. A person who is incompetent to vote. Certification by the clerk of the district court that any such person has been found no longer incompetent by a court shall qualify such person to again be an elector, subject to the other provisions of this chapter . 94 Acts, ch 1169, §7 ; 98 Acts, ch 1185, §2 ; 2002 Acts, ch 1134, §18, 115 Referred to in §53.37 Iowa Constitution, Art. II, §5 Proceedings regarding competency, see §229.27 , 633.552 Restoration of rights by governor, see chapter 914