Transcription help? (Preferably from people with experience.)

I’m trying to get an online job through a legitimate transcription company, but there’s something I’m slightly confused about that their guidelines don’t cover.

If there is a noise in the background of the audio, such as a door shutting, would that be transcribed or left out typically? In the test audio, the speaker asks someone to shut a door and you can then clearly hear it closing.

The guidelines for transcription don’t really go over what to do about background noise. I know for CC on TV shows that would be included, but I’m not sure about audio recordings. Anyone?