in the District of Columbia that, on the day before the date of the retrocession, are controlled or owned by the United States and held for defense or Coast Guard purposes. (2) Limitation on authority The power of exclusive legislation described in subparagraph (A) shall vest and remain in the United States only so long as the particular tract or parcel of land involved is controlled or owned by the United States and held for defense or Coast Guard purposes. (b) Authority of State of Maryland (1) In general The reservation of authority in the United States under paragraph (1) shall not operate to prevent such tracts or parcels of land from being a part of the State of Maryland, or to prevent the State from exercising over or upon such lands, concurrently with the United States, any jurisdiction which it would have in the absence of such reservation of authority and which is consistent with the laws hereafter enacted by Congress pursuant to such reservation of authority. (2) Service of process The State of Maryland shall have the right to serve civil or criminal process in such tracts or parcels of land in which the authority of the United States is reserved under paragraph (1) in suits or prosecutions for or on account of rights acquired, obligations incurred, or crimes committed in the State but outside of such lands. B Federal Courts 211. Residency requirements for certain Federal officials (a) Circuit judges Section 44(c) of title 28, United States Code, is amended— (1) by striking Except in the District of Columbia, each and inserting Each