ðiːz kˈoʊdz ɑːɹ ˈɔːlsoʊ jˈuːzd baɪ sˌʌm kˈʌmpəniz æz ɐ kˈoʊdɪŋ stˈændɚd æz wˈɛl, ɪspˈɛʃəli ðoʊz ðæt mˈʌst dˈiːl wɪð fˈɛdɚɹəl, stˈeɪt ænd lˈoʊkəl ɡˈʌvɚnmənts fɔːɹ sˈʌtʃ θˈɪŋz æz tˈæksᵻz.
These codes are also used by some companies as a coding standard as well, especially those that must deal with federal, state and local governments for such things as taxes.