The National Association of State Procurement Officials is proud to make the State and Local Government Procurement: A Practical Guide, 4th Edition, available to government professionals, students, suppliers, educators, and others interested in learning about public procurement. Whether you are a seasoned procurement professional or new to the field, this guide should provide you a valuable reference tool in your efforts. This edition of NASPO’s flagship guide features many changes, improvements, and additional content. This updated 4th Edition identifies the current and rapidly changing forces that are encountered by state or local government procurement officers and suggests ways in which they may be addressed. The text also describes the principles and practices that are at the heart of a procurement system that must remain both flexible and accountable.