This book is perfect for preparing for the Class 4 Hazardous Materials Handling Specialist exam, with easy-to-understand diagrams and plenty of practice questions. - Title: Pass the Exam on the First Try! Class 4 Hazardous Materials Handling Specialist Text & Workbook - ISBN: 978-4-8452-9273-4 - Publisher: Seimido Publishing - Features: Easy-to-understand diagrams, plenty of practice questions, and a final practice exam Thank you for viewing.