Air Pollution Complaints

This page last reviewed February 1, 2017

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The ARB's Complaint Program conducts special investigations of air pollution complaints from all over the state of California, monitors the ARB's complaint hotline and informs Air Pollution Control Districts of possible violations of district rules and assists in conducting selected complaint investigations. To reach the ARB's Vehicle Complaint Hotline, please call 1-800-END-SMOG (1-800-363-7664)

Telephone Hotlines

Vehicle Complaint Hotline: 1-800-END-SMOG (1-800-363-7664)
General Air Pollution Complaint Hotline: 1-800-952-5588

Complaint Resolution

If you would like to learn more about how to resolve air pollution complaints, please review the ARB's Complaint Resolution Protocol (in English or Spanish.)


To report an environmental violation that falls under federal jurisdiction, please visit the U.S. EPA Compliance and Enforcement website, which also includes detailed information regarding what constitutes a federal environmental crime.

Complaint Program Contacts

Complaint Investigations: 

To report a general air quality complaint, please email or telephone 1-800-952-5588.

Idling Commercial Vehicle or
Smoking Vehicle Complaints:

Please email or telephone 1-800-952-5588.

Locomotive Complaints: 

Please email Rebecca Geyer or telephone (916) 229-0438.

Drayage Complaints:  

Please email Debbi Klossing or telephone (626) 350-6574.

TRU Complaints:  

In Northern California, please email Bradley Penick or telephone (916) 229-0479.
In Southern California, please email Aldo Chaney or telephone (626) 350-6577.

Thank you for helping us improve California's air quality!