The purpose of this guide is to help CHC leaders weigh the costs and benefits of remaining with their current EHR system (possibly with enhanced functionality) or switching to a different one. It is intended to be useful to all those participating in decisions about EHR systems, not just to technical experts. The guide offers a step-wise approach to asking important questions, making decisions, and moving forward. The appendices describe the types of products and services that are available to CHCs and that are mentioned throughout the guide.