A hygiene plan summarises all the procedures, measures, products and instructions needed to comply with hygiene standards. These are tailored specifically to the tattoo studio in question and aim to prevent the spread of infection. A tattoo studio has to be able to present its hygiene policy in the event of an inspection by the local health authorities, for instance. Hygiene policies have to be updated on a regular basis and their content must be explained to all staff so that they can act as a guide for the studio's day-to-day work.