The Humanitarian Accountability Partnership (HAP) was initially developed for application in humanitarian relief programs. The HAP standard is a practical and measurable tool representing a broad consensus on what matters most and what humanitarian action issues are. The standards help organizations design, implement, assess, improve, recognize, and be accountable to programs. Being accountable to crisis-affected communities allows organizations to develop quality programs that meet those people’s needs and reduces the possibility of mistakes, abuse, and corruption. PDI has produced this book to foster the HAP standards. The HAP Principle is equipped to design, implement, assess, improve, and recognize accountable programs. It outlines the policies, processes, procedures, and practices an organization needs to implement to be accountable to crisis-affected communities.