HARRISBURG, Pa. (AP) — Pennsylvania’s transportation secretary is telling the U.S. Census Bureau that her agency won’t provide driver’s license records as part of a Trump administration effort to gather citizenship information.

Secretary Leslie Richards wrote Thursday to a Census Bureau official, saying her department won’t participate in the project.

More than a dozen other states have already declined to participate, according to an Associated Press survey .

The Census Bureau began asking for five years’ worth of driver’s license records in August, promising the information will be kept confidential.

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That effort began after the U.S. Supreme Court rejected a plan to add a citizenship question to next year’s census.

The effort has alarmed civil rights groups that see it as part of a move by the Trump administration to reduce the political power of minorities.