This 1-day course serves as a building block to provide learners with foundational knowledge for why and how hazardous air pollutants (HAPs) from stationary sources are regulated before taking courses on other air toxics or industry-specific topics, such as permitting, control technologies, inspections, or enforcement. After completion of this course, learners will be able to explain the regulatory framework for hazardous air pollutants from stationary sources. Specifically, learners will be able to: • Identify the key elements of the regulatory framework for HAPs from stationary sources. • Explain how HAPs are identified (listed) and delisted under the Clean Air Act (CAA). • Define major and area stationary sources. • Explain the requirements for identifying (listing) major and area sources under the CAA. • Identify the types of emissions standards. • Describe the components of emissions standards. • Explain how emissions standards are set for major and area sources. • Explain technology and residual risk review of emission standards. Note: It is presumed that learners who attend this course already have foundational knowledge of air toxics topics. If learners do not already have this knowledge, it is recommended that the following e-learning modules are taken prior to attending this course: • What are air toxics? • What are the sources of air toxics? • What are the health and environmental effects of air toxics?