Guidance

• Maryland's Toxic Air Pollutant (TAP) Regulations Fact Sheet
• Demonstrating Compliance With the Ambient Impact Requirements under the TAP Regulations

Screening Levels

For current Maryland screening levels for toxic air pollutant emissions, please contact Matt Hafner by e-mail at [email protected] or Suna Yi Sariscak by email at [email protected] or call the main Air Quality Permits Program number at 410-537-3230.​