Facility-Based Mobile Source Measures

Focused on implementation of the five Facility-Based Mobile Source Measures (FBMSMs) adopted in the 2016 AQMP.
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Upcoming Meetings

  • Our Community Meetings to discuss the Rail MOU on 09/19-9/21 have been canceled. 
    Additional information can be found Here: English - Spanish

Meeting Archives Here

What are Facility-Based Mobile Source Measures (FBMSMs)?

The recently adopted 2016 Air Quality Management Plan (AQMP) (linked) identified many control strategies to meet federal ambient air quality standards for ozone and particulate matter, mainly through control measures to reduce nitrogen oxides (NOx), a key precursor pollutant.  Control measures were identified for both stationary sources (factories, refineries, etc.) and mobile sources (cars, trucks, ships, etc.).  The Facility Based Mobile Source Measures identified in the 2016 AQMP will seek to reduce emissions from the indirect mobile sources associated with facilities, for example trucks visiting ports or warehouses, construction equipment used in development, etc.

Why are FBMSMs necessary?

Approximately 80% of the NOx emitted in the air basin is from mobile sources. EPA and CARB have primary authority to regulate emissions from mobile sources, and have adopted many regulations that will continue to reduce emissions in coming years.  However, after considering all existing rules and regulations, an additional 45% reduction of NOx is needed by 2023, and a 55% reduction is needed by 2031.  FBMSMs are intended to help achieve these needed emission reductions.

How can I find out more about financial incentives that South Coast AQMD is pursuing?

South Coast AQMD is undertaking an effort to secure incentive funding for the implementation of the 2016 AQMP that is separate from FBMSM development. More information regarding this effort is available here.  Information regarding existing incentive programs can be found here.

How can I provide feedback on the Facility Based Mobile Source Measures?        

Send us an email at and a staff member will get back to you.

How can I be added to the Facility Based Mobile Source Measures contact list?                          

Subscribe here

Other Helpful Links

Rule 2305 - Warehouse ISR Compliance Webpage

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South Coast Air Quality Management District

21865 Copley Dr, Diamond Bar, CA 91765



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