Your response should be at least 75 words in length. Describe four duties of the controlling contractor on a steel erection site. Your response should be at least 75 words in length. What is a controlled decking zone (CDZ)? What are the requirements for working in a CDZ? Your response should be at least 75 words in length. Discuss some ways that employee exposure to overhead loads during steel erection can be reduced. When is working under a load permitted? Your response should be at least 75 words in length. Along with a PowerPoint and please follow the directions in the PowerPoint