71 Pa. Stat. § 524
The Department of Transportation shall have the power, and its duty shall be, to establish and regulate the establishment in this Commonwealth of the system of rectangular coordinates which has been established and adopted by the United States Coast and Geodetic Survey for defining and stating the positions and location of points on the surface of the earth, to establish or fix triangulation and traverse stations, to collect, check, coordinate and preserve survey data, to advise with parties using the system of coordinates, to supervise the marking of surveys which are to become a part of the system, to keep official records of all surveys and maps, to administer the law establishing the "Pennsylvania Coordinate System," and to adopt and enforce such rules and regulations as may be deemed necessary to carry these powers into effect, and to administer the law relating to the "Pennsylvania Coordinate System."
71 P.S. § 524