SACRAMENTO (CBS/AP) — Federal authorities say as many as 100 commercial truck drivers paid up to $5,000 each to bribe state Department of Motor Vehicles employees for illegal California licenses.

The U.S. Attorney’s Office in Sacramento says Emma Klem, a 45-year-old Salinas DMV employee, and a trucking school owner from Turlock each pleaded guilty Tuesday to conspiracy to commit bribery and to commit identity fraud.

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Two other DMV employees in Salinas and Sacramento and two other trucking school operators face similar charges. Two pleaded not guilty, and the others are awaiting arraignment.

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Court records say the employees changed computer records to falsely show that drivers passed written and behind-the-wheel tests.

Prosecutors say the owners of three truck driving schools bribed the DMV employees between June 2011 and March 2015.

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