Our Mission

To protect public health and agriculture from the adverse effects of air pollution by identifying air pollution problems and developing a comprehensive program to achieve and maintain state and federal air quality standards.


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We Need You


There is currently a vacancy on the APCD Hearing Board for the Engineer member position. Candidates for the Engineer member position must be licensed in the state of California and must be a resident of Ventura County. For more information regarding the Engineer position, please click here.


Air Streams



Check out our new Air Streams video section. Air Streams highlights District programs as well as what individuals, businesses and local agencies are doing to help clean the air and safeguard our environment. Also included are some vintage clips of past APCD video segments.


Replacing Tier 1 & Tier 2 Ag Engines: Check Before You Buy!


APCD issues a Compliance Assistance Advisory regarding the California Air Resources Boardís Air Toxic Control Measure for Stationary Compression Ignition Engines (ATCM) requirement to replace Tier 1 and Tier 2 diesel Ag engines.

The ATCM prohibits the operation of Tier 1 and Tier 2 agricultural engines after December 31, 2014 for engines rated at 175 BHP or greater and December 31, 2015 for engines rated at 50 to 174 BHP.

Check before you buy! This advisory informs owners or operators of Tier 1 & Tier 2 Ag engines that not all Tier 4 or Interim Tier 4 diesel engines will meet the upcoming ATCM emission standards, and advises them to check before they buy a new engine. The upcoming emission standards are contained in the advisory. Another option is to buy an electric motor instead of a diesel engine.

There will be a limited amount of funding available to qualified applicants to help purchase a new diesel engine, or electric motor.

All Ag engines 50 horsepower and greater, including new replacement engines, are required to be registered with the APCD. For information on the Districtís agricultural engine registration program please click here.

For the District's "Engine Location Change Policy Memo" and notification form, click here.


Portable Diesel Engine Fleet Reporting and Emission Requirements Ė Upcoming Enforcement Action


APCD Issues a Compliance Assistance Advisory directed at owners and operators of portable diesel engines who have not yet complied with the stateís Airborne Toxic Control Measure (ATCM) for Diesel Particulate Matter from Portable Engines reporting requirements, or who have fleets that do not meet the fleet emission requirements. These requirements apply to all portable diesel engines whether they are registered with the Statewide Portable Engine Registration Program (PERP), or operating under an APCD Permit to Operate.


New State Greenhouse Gas Regulations


The California Air Resources Board (ARB) is working on reducing greenhouse gas (GHG) emissions from multiple sectors of Californiaís economy, as part of the implementation of AB 32, the Global Warming Solutions Act. Several of ARBís regulations take effect in 2011 and will affect businesses in Ventura County. ARBís regulations effective this year will apply to operators of larger industrial and commercial refrigeration systems and semiconductor manufacturers. To assist those affected by ARBís regulations, the APCD has prepared several Compliance Assistance Advisories. Read more...


Air Ė the search for one clean breath


To view film, click here.


EV Readiness Plan & Charging Station Grants


On January 23, 2014, Ventura County APCD and Plug in Central Coast hosted a public workshop to discuss the recently released EV Readiness Plan and EV Charging Station Maps. This Plan was developed under the California Energy Commission Grant No. ARV-11-002. In addition, this workshop provided information on current grant opportunities to install publicly accessible EV charging stations in the county. The notice for this workshop may be found here.


Presentation on Light-Duty Vehicle Technology


Check out this California Air Resources Board presentation on Light-Duty Vehicle Technology. This presentation was provided to the Air Pollution Control Board, at their September 10, 2013, meeting. It contains interesting projections on the future market share of various low-emission vehicle technologies.