Unit 2 – Regulations and TrainingBy Admin / December 7, 2014 You must first complete Unit 1 – Introduction to TDG before viewing this LessonPlease sign up for the course before starting the lesson. Unit 2 discusses compliance and outlines the training requirements set out in the TDG Act and regulations. Unit 1 - Introduction to TDG Unit 3 - Classification of Dangerous Goods Back to: Transportation of Dangerous Goods (TDG)