On and after July 1, 2010, no judge shall be authorized to participate in the retirement system provided for in the Judges Retirement Act unless the judge (a) is a United States citizen or (b) is a qualified alien under the federal Immigration and Nationality Act, 8 U.S.C. § 1101 et seq., as such act existed on January 1, 2009, and is lawfully present in the United States.