Restricts federal hiring to U.S. citizens and nationals

Adds a new Section 3117 to federal personnel law that generally prohibits hiring noncitizens as federal employees.

Requires job appointees to sign an affidavit attesting to citizenship and requires the hiring agency to verify citizenship before appointment.

Creates specified exceptions for temporary translators, emergency field services, certain international broadcasters, and short-term wildland firefighters.

Requires OPM guidance within 180 days, Federal Register disclosure when exceptions are used, and a congressional report on existing noncitizen employees.

Establishes criminal penalties for knowingly making a false citizenship affidavit (fine up to $50,000 and/or up to 5 years imprisonment).