4
SHELBY COUNTY v. HOLDER
Opinion of the Court
out” of coverage if it had not used a test or device in the
preceding five years “for the purpose or with the effect of
denying or abridging the right to vote on account of race or
color.” §4(a), id., at 438. In 1965, the covered States
included Alabama, Georgia, Louisiana, Mississippi, South
Carolina, and Virginia. The additional covered subdivisions included 39 counties in North Carolina and one in
Arizona. See 28 CFR pt. 51, App. (2012).
In those jurisdictions, §4 of the Act banned all such tests
or devices. §4(a), 79 Stat. 438. Section 5 provided that no
change in voting procedures could take effect until it was
approved by federal authorities in Washington, D. C.—
either the Attorney General or a court of three judges. Id.,
at 439. A jurisdiction could obtain such “preclearance”
only by proving that the change had neither “the purpose
[nor] the effect of denying or abridging the right to vote on
account of race or color.” Ibid.
Sections 4 and 5 were intended to be temporary; they
were set to expire after five years. See §4(a), id., at 438;
Northwest Austin, supra, at 199. In South Carolina v.
Katzenbach, we upheld the 1965 Act against constitutional
challenge, explaining that it was justified to address “voting discrimination where it persists on a pervasive scale.”
383 U. S., at 308.
In 1970, Congress reauthorized the Act for another five
years, and extended the coverage formula in §4(b) to jurisdictions that had a voting test and less than 50 percent
voter registration or turnout as of 1968. Voting Rights Act
Amendments of 1970, §§3–4, 84 Stat. 315. That swept in
several counties in California, New Hampshire, and New
York. See 28 CFR pt. 51, App. Congress also extended
the ban in §4(a) on tests and devices nationwide. §6, 84
Stat. 315.
In 1975, Congress reauthorized the Act for seven more
years, and extended its coverage to jurisdictions that had
a voting test and less than 50 percent voter registration or