; and (C) notify the individual that the individual is registered to vote in elections for Federal office in the State. (3) Treatment of information incorrectly provided If a source agency provides the chief State election official with information with respect to an individual who did not consent to be registered to vote under this section, the chief State election official shall not take any action to register the individual to vote, except that no such individual who is already included on the computerized Statewide voter registration list shall be removed from the list solely because the information was incorrectly provided under subsection (b). (4) No effect on other means of registration Nothing in this section affects a State’s obligation to register voters upon receipt of a valid voter registration application through means provided by National Voter Registration Act of 1993 ( 52 U.S.C. 20501 et seq.), the internet registration procedure described in subtitle A, or other valid means. (5) Individuals in existing records No later than January 2019, each individual who is listed in a source agency’s records and for whom there exists reason to believe the individual is a citizen and not otherwise ineligible to vote shall be mailed a postage pre-paid return postcard including a box for the individual to check, together with the statement (in close proximity to the box and in prominent type), By checking this box, I affirm that I am a citizen of the United States, am eligible to vote in this State, and will be at least eighteen years old by the next general election. I understand that by checking this box, I will be registered to vote if I am eligible to vote in the State. , along with a clear description of the voting eligibility requirements in the State. The postcard shall also include, where required for voter registration, a place for the individual’s signature and designation of party affiliation. An individual who checks the box and returns the completed postcard postmarked not later than the lesser of