This document provides details on a federal contract opportunity for bus overhaul services for the National Park Service Intermountain Region. The solicitation number is 140P1521Q0003 and seeks bids for the overhaul of buses to be used by Grand Canyon National Park. Interested vendors should review the PartsManual_Pages301-400_0003.pdf file for additional scope and technical requirements. Bids are due by the date and time specified within the solicitation documentation. The contract will be awarded to a vendor that can demonstrate the qualifications and capacity to complete the overhaul work to specifications, on schedule, and within budget.