Air qualitySet by air district feeCitation Rule 9510 s.7.2.1

Rule 9510 ISR off-site mitigation fee - NOx

Levied by San Joaquin Valley Air Pollution Control District on new development in Kern County (unincorporated). Authorized under the Air district rule adopted under Health & Safety Code Sec. 40000 et seq. (indirect source review).

Not priced for this house. This charge is real, adopted and collected, and it is left out of Kern County (unincorporated)'s figure for one reason: it is levied per ton NOx mitigated, and a typical home does not fix that quantity. That is not the same as a zero. The fee is owed; what is missing is the number to multiply by, and inventing one would price this house with more confidence and less truth. Every published rate is in the table below.

The record

We haven’t read the documents behind this fee yet, so this section is blank rather than guessed.

1,041 of 1,321 fees carry a quoted record; the largest were read first.

Every published rate

Every rate below applies to residential.

Rate	Basis	Effective	Amount
	per ton NOx mitigated	1 Jul 2026	$9,350

Source documents

–Adopting resolution not found
–Nexus study not found
–Annual fee report (AB 1600) not found
–Published fee schedule not found
–Official boundary map not found
↗Source used for the rates

Not found means we couldn’t locate it, not that it doesn’t exist. Every linked document is archived here, so a dead link isn’t a dead citation.

Where this comes from

Facts with a quoted source: 0 of 10 record fields
Read on: 2 Sep 2026
Kind of document: Adopted fee schedule
Levying agency: SJV Air District
Jurisdiction: Kern County (unincorporated)

What “none” means, and what this fee rests on

High: We read this straight from the document that sets the fee: the city's ordinance, the council resolution, or the official fee schedule. This is the strongest kind of source, because the number and the rule come from the agency that charges it, in its own words.
Medium: We read this from an official document, but not the one that sets the fee. It might be a staff report, a study the fee was based on, or another agency's summary of it. These are usually right, but they can lag behind a change or describe a fee differently from the document that sets it. We also use medium when the agency's own documents disagree with each other.
Low: We could not find this in a current official document. It may come from an older version of the schedule, a secondary source, or from how the agency appears to apply the fee in practice. Treat it as a lead and check with the agency before relying on it.
Derived: Not read from a document at all. Filled in from the type of fee, such as which law authorizes it. Shown separately so it is never mistaken for a quotation.

Cite this page

Source: Development Fee Index, via DevFeeFinder · retrieved 2 Sep 2026

Development Fee Index, “Rule 9510 ISR off-site mitigation fee - NOx, Kern County (unincorporated)”. Figures retrieved 2 Sep 2026 from the documents listed above.

About these figures

Quoted, not summarized. Every amount and fact on this page is copied from the official document it links to. If we couldn’t find something in a document, we leave it blank instead of guessing.

Before any discounts. Some fees offer credits, waivers or phase-ins. They’re listed above but not subtracted, because whether you qualify depends on your project.

Check the date. Fees change. This page shows what was in force on the date at the top, with a link to the document that set it, so you can confirm the current amount yourself. How all of this is put together.

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