Employment authorization is a legal permission that allows individuals to work in a specific country. It is often required for non-citizens, including immigrants and temporary visa holders, to ensure they can legally earn a living while residing in that country. To obtain employment authorization, individuals typically need to apply through the appropriate government agency, providing necessary documentation and meeting specific eligibility criteria. Once granted, this authorization can be temporary or permanent, depending on the individual's situation and the laws of the country where they wish to work.