This podcast episode explores the concept of Chevron deference and its impact on environmental regulations. It discusses the controversy surrounding the definition of a stationary source of pollution and the cost of compliance for businesses. The episode also highlights the landmark Supreme Court ruling in 1984 that established Chevron deference, granting agencies the authority to interpret ambiguous laws. The episode further delves into the decline of conservative support for Chevron deference, triggered by concerns over executive powers and government agency discretion.