ðə wˈɜːk pɚfˈɔːɹmd baɪ ðiːz ˈɑːfɪsɚz lˈɑːɹdʒli dᵻpˈɛndz ˌɔn ðɛɹ ˌɛndʒɪnˈɪɹɪŋ bɹˈæntʃ ænd sˈɜːvɪs ɔːɹ kˈɑːdɚ.
The work performed by these officers largely depends on their engineering branch and service (or cadre).