Section 1. Be it enacted, &c., That the jurisdiction of this Commonwealth is hereby ceded to the United States of America over that portion of the public road, known as the Emmitsburg Road, within the limits of the National Park at Gettysburg, as defined by the act of Congress, entitled "An act to establish a National Military Park at Gettysburg, Pennsylvania," approved the eleventh day of February, Anno Domini one thousand eight hundred and ninety-five, extending from the borough line, southwesterly, eight thousand two hundred and sixty-three feet to the public road known as the Wheatfield Road: Provided, nevertheless, That this cession is upon the express condition that the Commonwealth of Pennsylvania so far retains concurrent jurisdiction with the United States, over that part of said road which is hereby ceded, as that all civil and criminal process issued under the authority of this Commonwealth may be executed thereon, in like manner as if this act had not passed: Provided, further, That all offenses against the criminal laws of Pennsylvania, committed upon said road, shall remain as before cognizable in the courts of this Commonwealth; but nothing herein contained shall in any wise interfere with the jurisdiction of the United States over any matters embraced in the act of Congress establishing said National Park, approved the eleventh day of February, Anno Domini one thousand eight hundred and ninety-five, nor with any laws, rules, or regulations which have been or may be adopted by the Government of the United States for the preservation and protection of its property and rights in said ceded road, and proper maintenance of good order thereon.