The District of Columbia’s main air pollution control law focuses on reducing emissions from a variety of sources, including industrial and commercial buildings, vehicles, and building construction. According to these laws, emission reduction plans are published and permits are issued following the plans.

Title 20 District Municipal Regulations:

• Chapter 1 - General
• Chapter 2 - General and Non-attainment Area Permits
• Chapter 3 - Operating Permits and Acid Rain Programs
• Chapter 4 - Ambient Monitoring and Emergency Procedures
• Chapter 5 - Source Monitoring and Testing
• Chapter 6 - Particulates
• Chapter 7 - Volatile Organic Compounds
• Chapter 8 - Asbestos, Sulfur, Nitrogen Oxides, and Lead
• Chapter 9 - Motor Vehicular Pollutants, Lead, Odors, and Nuisance Pollutants
• Chapter 10 - Nitrogen Oxides Emissions Budget Program
• Chapter 14 – Air Toxics and Hazardous Air Pollutants
• Chapter 15 - General and Transportation Conformity

Recent Laws and Regulations:

• Notice of Proposed Rulemaking
  Air Quality Permit Fees and Synthetic Minor Permitting Program - DC REGS Notice ID: 6385042
   
• Notice of Proposed Rulemaking
  Chapters 1 and 2 of the Air Quality Regulations - DC REGS Notice ID: 6385139
   
• Air Quality Amendment Act of 2014- Enforcement, Demand-Response Generators, and Mold