California Air Districts

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The state of California has been divided into 35 air districts, each with their own requirements. District borders are established by the state legislature; many follow county borders. If there is a question concerning which district a particular location is part of, detailed border descriptions are available at the district website.

Please be advised that not all districts have emissions requirements that affect the types or sizes of product that Raypak manufactures. Furthermore, certain districts exempt propane-fired units from regulation, and others do not. It is important to be aware of current requirements in each district.

The California Air Resources Board (ARB) maintains a site with information on each district and their requirements. See the links below.

The district roster, with links to district websites and contact data, can be found at:

A map of the districts throughout California can be found at: