firstly, a method to be applied by railway undertakings and infrastructure managers in order to check conformity of railway operation and maintenance activities with essential requirements (12923/12),
esiteks raudteeveo-ettevõtjate ja raudteeinfrastruktuuri-ettevõtjate meetod, et kontrollida raudteede toimimise ja hoolduse vastavust olulistele nõuetele (12923/12),