The transportation purpose represents the most important objective of regional passenger transport. The decision on determining the way of the passengers checking is one of the attributes that needs to be considered in relation to the passengers transportation. This issue may be solved by utilizing the checking devices and their appropriate placement. Applying the checking devices inside the transport means represents the establishing the prerequisites for self-check-in method in terms of passengers checking. This article presents the overview of aspects affecting the number of checking devices utilized within the regional passenger transport. For instance: traveled distance, transport means velocity, transport means circuit period and other may be included among these aspects. In the particular article chapter, the method for determining the number of checking devices utilized within the regional passenger transport is outlined.