Main Smog

Main Smog is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Automobile Smog Control Inspection & Repair Station

North American Industry Classification System (NAICS) Categories:

• All Other Automotive Repair And Maintenance > Auto Inspection & Testing Services > Auto Emission Testing

Standard Industry Classification (SIC) Categories:

• Automotive Services, Except Repair & Carwashes > Auto Inspection & Testing Services > Auto Emission Testing