Previously published by the Nuclear Regulatory Commission, this new edition is now being published by ASNT. Includes updated and revised information on X-ray safety, current regulations, current radiation units and quantities and new photographs. The book is ideal for companies who need to meet the NRC requirements for training radiographers. ISBN-13: 978-1-57117-123-8 (print) ISBN-13: 978-1-57117-305-8 (ebook)