A Code of Conduct defines the rules and responsibilities for all individuals within a business, and the expectations and obligations which they must meet.
This goes beyond standard policy expectations and includes information about the key practices of the business as well as social and behavioural norms which must be observed. It can be quite a formal approach to defining how you’d like people to work in your business. It isn’t essential in every business, but can be helpful in setting a baseline, particularly where expectations need to be set across a large-scale business