42 U.S.C. § 1973aa : US Code - Section 1973AA: Application of prohibition to other States; "test or device" defined

Search 42 U.S.C. § 1973aa : US Code - Section 1973AA: Application of prohibition to other States; "test or device" defined

(a) No citizen shall be denied, because of his failure to comply
with any test or device, the right to vote in any Federal, State,
or local election conducted in any State or political subdivision
of a State.
(b) As used in this section, the term "test or device" means any
requirement that a person as a prerequisite for voting or
registration for voting (1) demonstrate the ability to read, write,
understand, or interpret any matter, (2) demonstrate any
educational achievement or his knowledge of any particular subject,
(3) possess good moral character, or (4) prove his qualifications
by the voucher of registered voters or members of any other class.