As a result of the Dayton Air Force Depot facilities eventually having become inadequate in terms of supporting the Air Force’s increasing accuracy requirements, a search was initiated in 1958 for a replacement facility. The Air Force Industrial Plant No. 48, located at Heath, Ohio, offered most of the desired features…such as underground facilities and a stable seismic environment. On 1 February 1959 the facility was re-designated as the “Heath Maintenance Annex” of the Dayton Air Force Depot, and construction of new facilities began on 9 June 1960. By the end of 1962 the Air Force Measurement Standards Laboratories were completed and was renamed “Newark Air Force Station.” The Air Force Specialty Code (AFSC) 32470 was created on the 31st of August 1958 titled “Precision Measuring Equipment Technician.” This defined the Metrology Technician career field, and was the assigned AFSC to those who attended and graduated from the PMEL school at Lowry AFB, CO. The Air Force assigned management of the worldwide Precision Measurement Equipment Laboratories certification program to the Calibration and Metrology Division in 1965. In 1968 the 2802nd Inertial Guidance and Calibration Group was inactivated and replaced by the Aerospace Guidance and Metrology Center (AGMC). The Calibration and Metrology Division was changed to the “Directorate of Metrology” on 8 November 1968. Newark Air Force Station was renamed “Newark Air Force Base” in June of 1987. Privatization took place at Newark AFB during the 1990s. This resulted in functions of Air Force Primary Standards Laboratories (including Technical Order preparations) being performed by a private contractor. The Air Force created the “Air Force Metrology and Calibration Program Office (AFMETCAL) at Heath, Ohio, to manage Metrology services for the Air Force while retaining engineering authority for all calibrations performed in PMEL labs throughout the Air Force, and to manage the contractor operated Air Force Primary Standards Lab. (Source)