θɹˈiːhˈʌndɹɪd ˈeɪɾi wˈʌn ˈɛks ɪŋɡˈæɹɪsən ɹˈoʊl ɪz tə pɹəvˈaɪd spˈɛʃəlˌɪst mˈɪlətˌɛɹi ˈɛɹbeɪs ˌɑːpɚɹˈeɪʃənz æt wˈɪljəmtˌaʊn ɪn kˈɑːnsɚt wɪð ˈʌðɚɹ ˈɛɹbeɪs sˈɜːvɪs pɹəvˈaɪdɚz sˈʌtʃ ɐz dᵻfˈɛns səpˈoːɹt ɡɹˈuːp ænd dʒˈɔɪnt lədʒˈɪstɪks kəmˈænd.
381ECSS's in-garrison role is to provide specialist military airbase operations at Williamtown in concert with other airbase service providers such as Defence Support Group and Joint Logistics Command.