ðɪ ˈɑːfɪs wʌz ɪstˈæblɪʃt baɪ lˌɛdʒɪslˈeɪʃən ɪn tˈuː θˈaʊzənd tˈuː, ɪnðɪ ˈæftɚmˌæθ ʌvðə sɛptˈɛmbɚɹ ɪlˈɛvən ɐtˈæks tʊ ɛnʃˈʊɹ kɑːntɪnjˈuːᵻɾi ʌv ɡˈʌvɚnmənt.
The Office was established by legislation in 2002, in the aftermath of the September 11 attacks to ensure continuity of government.