In practice, Cambodia is one of the least regulated countries in the world when it comes to visas and employment, and many expats do not have the work permits that they ostensibly require. A real life Cambodia work permit. There are two types of work permits in Cambodia: temporary and permanent.lthough this is the case at the time of writing, it is likely that at some point in the future laws about work permits for expats will be more vigorously enforced. For those who are required to get one, a work permit usually costs $100 per year.