On 19 May 2010, Norfolk Naval Shipyard completed the six-month Planned Incremental Availability (PIA) maintenance cycle on "Ronald Reagan". This PIA project came in under budget, and it marked both Norfolk Naval Shipyard's largest off-site availability, as well as the largest public-sector work package ever performed on an aircraft carrier berthed at Naval Air Station North Island located near Coronado, California. During the maintenance period, "Ronald Reagan" received technological upgrades that prepared her for her next deployment and subsequent operations. Refurbishments included high-tech combat systems and firefighting equipment to improved ship's laundry services and living spaces. This PIA maintenance project was an example of the 'One Shipyard' concept wherein the US Navy mobilizes its work force across its various shipyards to better meet fleet readiness requirements and to stabilize a vital workforce base for the US defense industry. While Norfolk Naval Shipyard (NNSY) was the project lead, significant work was done by its partners: Puget Sound Naval Shipyard & Intermediate Maintenance Facility (PSNS), Southwest Regional Maintenance Center (SRMC), and Northrop Grumman Shipbuilding (NGSB). During peak manning, about 1,400 worked the project on a daily basis. This included rough 625 NNSY personnel, 165 PSNS employees, and 600 from SWRMC/NGSB.