Under federal and state law, the South Coast Air Quality Management District (AQMD) is under a legal obligation to enforce air pollution regulations. These regulations are primarily meant to ensure that the surrounding (or ambient) air meets federal and state air quality standards. AQMD also has broad authority to regulate toxic and hazardous air emissions, and these regulations are enforced in the same manner as those which pertain to the ambient air quality standards.

The Inspection Process
What to expect when an AQMD inspector visits your facility.

Training Classes & Workshops
Learn more about complying with AQMD requirements.

Forms Arranged by Rule
Compliance forms and related instruction pages.

Rules & Regulations
Keep up-to-date with the latest AQMD requirements.

Compliance Notices
Notices of Violation & Notices to Comply.

Hearing Board
Learn more about variances & Hearing Board procedures.

Authority & Enforcement
AQMD's legal obligation to make & enforce air pollution regulations

Public Inquiry System
Find out about compliance notices issued by the AQMD.

Rule 1147 Amendment (PDF, 143kb)
Rule 1147 - Nitrogen Oxide Reductions from Miscellaneous Sources amended in September 2011. 

Rule 1173 Amendment (PDF, 482kb)
Definition of term "Tamper-proof" and other amended rule revisions regarding pressure relief devices.

Rule 1144 Advisory (PDF, 103kb)
Important notice to all manufacturers, suppliers and users of metalworking fluids and direct‐contact lubricants regarding rule clarification.

Rule 1147 Advisory (PDF, 1.45mb)
Compliance advisory for operators of small or medium sized combustion equipment, using gaseous or liquid fuels that require an SCAQMD permit, to comply with emissions of SCAQMD Rule 1147 - Nitrogen Oxides Reduction from Miscellaneous Sources.  

Rule 1470 Advisory (PDF, 92kb)
Requirements for new stationary diesel-fueled internal combustion and other compression ignition engines.

Air Quality Complaints
How to report smoke, dust or odor problems to AQMD.

Compliance Assistance
Need assistance with permit applications or AQMD Rules?

Facility Information Detail (FIND)
Information about the regulated facilities in your community.

Flare Events
Provide & view planned and unplanned flare event information.


REgional CLean Air Incentive Market.

Statewide PERP
CARB's Portable Equipment Registration Program.

Rule 1133 Requirements
Composting and Related Operations.


Title V
Technical guidance and permitting.

Rule 1470 Requirements
Stationary Diesel Fueled & Other Compression Ignition Engines.

Newsletter Sign Up
Periodic newsletter updates via Email on a variety of air quality-related topics

South Coast Air Quality Management District

21865 Copley Dr, Diamond Bar, CA 91765



© 2018 South Coast Air Quality Management District