This greatly expanded edition of the study guide for ISA’s Certified Arborist Utility Specialist certification exam preparation is an essential text for professionals in the field of utility arboriculture - based on scientific research and proven best practices. It provides utility arborists and foresters with the information necessary to navigate the complexities of today’s vegetation management industry, covering the latest methods and techniques in the areas of safety, program and personnel management, utility pruning, integrated vegetation management, electrical knowledge, storm preparation and response, and communications. Any educational or preparatory material, whether published by ISA or not, should not be considered the sole source of information for an ISA certification examination. This publication and the ISA certification program exams are developed through separate processes and entities.