This course will provide an overview of both the construction and general industry rules related to confined space and permit-required confined spaces. Examples of actual spaces will be used to clarify the definition and facilitate proper identification of confined space versus permit-required confined spaces. The three means of entering a permit-required confined space are described in Part 35, 90, and 490. These will be discussed along with their correct implementation. This course also includes an introduction to the principles of air monitoring and ventilation of confined and permit-required confined spaces.