The following article concerns the issue of durability of service of the Customs official. It presents the legal solutions that contribute to a higher, than in other professional groups, stability of employment. It describes matters related to establishing and terminating the official employment relationship as well as actions directed at rationalising human resources. The analysis of the above mentioned issues was possible thanks to the data base that contains statistical and strategic documents, reports on actions published by the Customs, court rulings and scientific publications. The most useful research methods turned out to be the quantitative comparative and systemic methods.