This International Standard has been prepared in response to the rapidly increasing need to ensure and to support the efficient and effective use of energy. This standard provides a) a method to estimate energy consumption of escalators and moving walks on a daily and an annual basis for escalators and moving walks, b) a method for energy classification of new, existing, or modernized escalators and moving walks, c) guidelines for reducing energy consumption that can be used to support building and environmental and energy classification systems. This standard is intended to be a reference for the following parties: - building developers/owners to evaluate the energy consumption of escalators and moving walks; - building owners and service companies when modernising installations including reduction of energy consumption; - the installers and maintenance providers of escalators and moving walks; - consultants and architects involved in specification of escalators and moving walks; - inspecting authorities and other third parties providing energy classification services. This standard includes the German version of EN ISO 25745-3:2015 which has been prepared by CEN/TC 10 "Lifts, escalators and moving walks" of the European Committee for Standardization (CEN). The national interests were represented by Working Committee NA 060-33-01 AA "Aufzüge" ("Lifts") of the Standards Committee Mechanical Engineering (NAM) at DIN. Representatives of manufacturers and users of escalators and moving walks as well as representatives of professional and trade associations were involved in the preparation of the standard.