The 2015 edition of the Uniform Plumbing Code (UPC) represents the most current approaches in the plumbing field. It is developed under the ANSI Consensus process is designated as an American National Standards by the American National Standards Institute . This study guide was developed as a tool for self-study or classroom training to assist the user to better understand the requirements of the Uniform Plumbing Code. Although it is quite useful for examination preparation, such as, inspector, certification, contractor, and journeyman, it is not intended to replace the intense study required to be successful for these exams. This text is not intended to replace the Uniform Plumbing Code document.