; and (2) manufacturing safety inspectors, pilots, engineers, Chief Scientist Technical Advisors, aviation safety specialists (1801 series), safety technical specialists, and operational support positions in the Aircraft Certification Service. 526. Instrument landing system installation (a) In general Section 44502(a)(4) of title 49, United States Code, is amended by adding at the end the following: (C) Installation The Administrator shall expedite the installation of at a minimum 15 instrument landing systems (referred to in this subparagraph as ILS ) in the national airspace system by January 1, 2025, by utilizing the existing ILS contract vehicle and the Federal Aviation Administration workforce. . (b) Expedited installation of ILS equipment (1) In general Not later than 180 days after the date of enactment of this section, the Administrator shall initiate action to utilize the existing instrument landing systems (referred to in this subsection as ILS ) contract vehicle and FAA employees in facilitating the expedited installation of ILS equipment into the national airspace system. In carrying out this subsection, the Administrator shall— (A) incorporate lessons learned from the installations under section 44502(a)(4) of title 49, United States Code; (B) record metrics of cost and time savings of expedited installations