​Schedule & Tariffs Centre (STC) and Statistics and Economic Research Centre (SERC) are subdivisions of the Transport Clearing House, PJSC. In pursuance with official regulations of the special authority in the field of Russian civil aviation, STC and SERC operate to serve the interests of the industry and airlines. Information from STC and SERC up-to-date databases are provided to interested users on contractual basis.​​​