award a contract to complete the federally required design of a runway safety area, also known as the rsa. the board of supervisors approved a feasibility study for this project in may 2010. some brief background on the project. the faa regulates the runways at san francisco international airport and enforces requirements for runway layout, land, and safety. the faa has required commercial airports that receive federal grant funds must come to the extent possible, implement runway safety areas. runway safety area enhancements -- are enhancements of cleared and gray areas at the end of runways, meant to minimize damage to passengers and aircraft in the case that the aircraft travel beyond the runway service area. in 2005, the faa prepared an improvement plan which mandated all commercial airports that do not have the ability to accommodate the 1,000 feet beyond the end of each run away, install and engineered arresting system by december 31, 2015 of the airport's four runways, the staff was able to look at a variety of options and was able to modify our two longer runways, in order to achi