Any organization that aims to improve its practices and provide high-quality services needs to set down some ground rules and regulations, based on which it can be held accountable and responsible. Accordingly, Tipax has set down a series of specific rules and regulations to further be more transparent about its responsibilities toward its clients' shipments. On the other hand, the company is obliged to follow the same laws and regulations as all other organizations active in the area. These limitations and prohibitions apply just as much to the domain of transportation and logistics as they do to any other public business. Given the immensity of the domain of logistics, the prohibitions of international transportation (including by air) have to be considered while dealing with postal shipments. The following is a list of items prohibited by Tipax, the postal network, international transportation, and customs regulations.