The Irrigation, 6th Edition, 2011 published by the Irrigation Association is a key reference used in 1 Exam Prep courses for the Florida Irrigation Contractor License Exam administered under the CILB. This text covers irrigation design principles, hydraulics, water management, system installation, and maintenance practices in accordance with Florida Building Code and state licensing standards. It supports preparation for exam sections on irrigation system layout, controller operation, and backflow prevention. 1 Exam Prep includes this publication in its contractor education curriculum for those pursuing certification through the Florida Department of Business and Professional Regulation (DBPR), aligning with state-approved contractor school guidelines and irrigation education requirements.