This document is a primer on cash investment policy statements (IPS), which serve as policy guides to achieve the goals and objectives of investment portfolios. It outlines the importance of an IPS in corporate governance, fulfilling fiduciary duties, and providing discipline in the investment process. The primer details the essential components of an IPS, including purpose and scope, roles and responsibilities, investment objectives, investment constraints, permitted investments, performance evaluation, and compliance protocols. Each component is explained with specific considerations, such as risk tolerance, liquidity needs, and diversification strategies. The document aims to assist entities in developing customized IPS tailored to their unique circumstances, whether for operating cash, working capital, or employee benefit plans. It emphasizes the necessity of understanding an institution's specific situation before creating an IPS, ensuring that investment strategies align with the entity's goals and regulatory requirements.