This document outlines the theory and practice of enterprise risk management (ERM). It discusses how ERM works differently in private versus public sector organizations due to differences in goals and risk tolerance. The document proposes a framework for implementing ERM with five phases: risk governance, risk assessment, risk quantification, risk monitoring and reporting, and risk optimization. It also describes steps to implement ERM such as obtaining buy-in, building an ERM foundation, conducting risk assessments, ongoing monitoring, and developing reporting. Roadblocks to implementation like resistance to change are also addressed.