IEC TS 62056-1-1:2016(E) defines a template for IEC 62056 communication profile standards. It provides the "Table of contents" of such standards and provides guidance to develop the content of the relevant clauses and subclauses.
ICS
35.110 Networking. Including local area networks (LAN), metropolitan area networks (MAN), wide area networks (WAN), etc. / Организация сети
91.140.50 Electricity. Including electric energy meters in buildings, emergency electrical supplies, etc. / Системы электроснабжения. Включая аварийное электроснабжение и т.д.