Incazelo yesichazamazwi "yokusebenza okuyimfihlo" kuwumsebenzi oyimfihlo noma ofihliwe wezempi noma wobuhlakani oklanyelwe ukufeza umgomo ngaphandle kokutholwa. Imisebenzi eyimfihlo ngokuvamile yenziwa ama-ejensi kahulumeni noma amayunithi ezempi futhi ngokuvamile isetshenziselwa ukuqoqa ubuhlakani, ukuphazamisa imisebenzi yesitha, noma ukuqhuba izimpi ezingajwayelekile. Le misebenzi igcinwa iyimfihlo futhi ayivunywa ngokusemthethweni uhulumeni noma amasosha, okuyehlukanisa nemisebenzi esobala eyenziwa ngokusobala futhi esidlangalaleni.