Alabama Mobile Sources regulations & environmental compliance analysis

Alabama Mobile Sources: What you need to know

Governing Law and Regulations

Automobile emissions standards: Alabama Administrative Code (Ala. Admin. Code r) 335-3-9

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Employer trip reduction and commuting: 42 USC 7511a(d)(1)(B)

Regulatory Agencies

Alabama Department of Environmental Management (ADEM) Air Division

Jefferson County Department of Health Bureau of Environmental Health

City of Huntsville Division of Natural Resources

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. There are many mobile source regulatory requirements implemented nationally by the U.S. Environmental Protection Agency (EPA) that impact mobile sources in Alabama. In addition, the state has established additional programs to implement optional federal programs and state-specific requirements to control mobile source emissions and make progress toward attainment of all the national ambient air quality standards.

Administration and enforcement. ADEM's Air Division is primarily responsible for the administration and enforcement of the mobile source requirements being implemented in Alabama. Jefferson County and the City of Huntsville have been granted authority to oversee the administration and enforcement of local, state, and federal air quality regulations within their jurisdictions.

State Requirements


Ala. Admin. Code r 335-3-9

Alabama has automobile emissions standards regarding visible emissions, ignition system and engine speed, crankcase ventilation systems, exhaust emissions control systems, evaporative loss control systems, tampering, and idling.

Visible Emission

No gasoline-powered vehicle may emit visible air contaminants on any ...

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