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A new law in Maryland that took effect on Jan. 1 allows illegal aliens to get a driver’s licenses in the state.

Proponents of the law, passed by state lawmakers and signed by Gov. Martin O’Malley, said it would make roads safer, because illegal aliens would have to pass driving tests and could get liability insurance from insurance companies.

The Maryland Highway Safety Act allows illegal aliens to obtain a license without a Social Security number or proof of lawful residency, according to the Washington Post.

The license cannot be used for federal purposes, including entering a federal building or boarding a commercial aircraft.