This document is a guide to users of IEEE Std 2030-2011, Guide for Smart Grid Interoperability of EnergyTechnology and Information Technology Operation with the Electric Power System (EPS), and End-Use Applications and Loads. It provides guidance in applying the smart grid interoperability reference model (SGIRM) of IEEE Std 2030 in the development of control and automation components. This guide outlines approaches to defining the requirements for control and automation applications within the electric power infrastructure, and describing their design, while adhering to a common open architecture.