; and (2) by striking within fifty miles of the District of Columbia and inserting within fifty miles of the Federal District . (b) District judges Section 134(b) of such title is amended in the first sentence by striking the District of Columbia, the Southern District of New York, and and inserting the Southern District of New York and . (c) United States attorneys Section 545(a) of such title is amended by striking the first sentence and inserting Each United States attorney shall reside in the district for which he or she is appointed, except that those officers of the Southern District of New York and the Eastern District of New York may reside within 20 miles thereof. . (d) United States marshals Section 561(e)(1) of such title is amended to read as follows: (1) the marshal for the Southern District of New York may reside within 20 miles of the district; and . (e) Clerks of District Courts Section 751(c) of such title is amended by striking the District of Columbia and . (f) Effective date The amendments made by this section shall apply only to individuals appointed after the date of the retrocession under section 102. 212. Renaming of Federal courts (a) Renaming (1) Circuit Court Section 41 of title 28, United States Code, is amended— (A) in the first column, by striking District of Columbia and inserting Federal District ; and (B) in the second column, by striking District of Columbia and inserting Federal District . (2) District Court Section 88 of such title is amended— (A) in the heading, by striking District of Columbia and inserting Federal District ; (B) by amending the first paragraph to read as follows: The Federal District comprise one judicial district.