The present document specifies the M2M service requirements aiming at an efficient end-to-end delivery of M2M services. It contains the following clauses: ? General requirements - describes communications features necessary for the correct establishment of M2M communications. ? Management - specifies requirements related to the management modes (malfunction detection@ configuration@ accounting@ etc.). ? Functional requirements for M2M services - describes functionalities-related requirements for M2M (data collection reporting@ remote control operations@ etc.). ? Security - covers the requirements for M2M device authentication@ data integrity@ privacy@ etc. ? Naming@ numbering and addressing - provides the requirements relating to naming@ numbering and addressing schemes specific to M2M. The M2M requirements in the present document are influenced by the following use cases: ? Smart meter use cases as described in TR 102 691 [i.2]. ? eHealth use cases as described in TR 102 732 [i.3]. ? Track and Trace use cases as described in annex B. ? Monitoring use cases as described in annex B. ? Transaction use cases as described in annex B. ? Control use cases as described in annex B. ? Home Automation use cases as described in annex B. ? City automation use cases as described in TR 102 897 [i.4]. ? Connected consumer used cases as described in TR 102 875 [i.5]. ? Automotive use cases as described in TR 102 898 [i.6]. ? Smart Grid use cases as described in TR 102 935 [i.10].