<P> Congress enacted major amendments to the Voting Rights Act of 1965 in 1970, 1975, 1982, 1992, and 2006 . Each of these amendments coincided with an impending expiration of some of the Act's special provisions, which originally were set to expire by 1970 . However, in recognition of the voting discrimination that continued despite the Act, Congress repeatedly amended the Act to reauthorize the special provisions . </P> <P> In each of these amendments except for the 1992 amendments, Congress extended the special provisions that were tied to the coverage formula, such as the preclearance requirement . These provisions were extended for five years in 1970, seven years in 1975, and 25 years in both 1982 and 2006 . In 1970 and 1975, Congress also expanded the coverage formula, supplementing it with new 1968 and 1972 trigger dates . Coverage was further enlarged in 1975 when Congress expanded the meaning of "tests or devices" to encompass any jurisdiction that provided English - only election information, such as ballots, if the jurisdiction had a single language minority group that constituted more than five percent of the jurisdiction's voting - age citizens . These expansions brought numerous jurisdictions into coverage, including many located outside of the South . To ease the burdens of the reauthorized special provisions, Congress liberalized the bailout procedure in 1982, allowing covered jurisdictions to escape coverage by upholding the voting rights of protected minorities and affirmatively acting to expand minority political participation . </P> <P> In addition to reauthorizing the special provisions and expanding coverage, Congress amended and added several other provisions to the Act . For instance, Congress expanded the original ban on "tests or devices" to apply nationwide in 1970, and in 1975, Congress made the ban permanent . Separately, in 1975 Congress expanded the Act's scope to protect language minorities from voting discrimination . Congress defined "language minority" to include "persons who are American Indian, Asian American, Alaskan Natives or of Spanish heritage ." Congress amended various provisions, such as the Section 5 preclearance requirement and Section 2 general prohibition of discriminatory voting laws, to prohibit discrimination against language minorities . </P>

When did congress expand the voting rights act to cover language minorities