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Fresno County, CA Building Safety: Plumbing Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Plumbing code adopted
2022 CA Plumbing Code + IAPMO standards
Commercial gas reconnection trigger
180 days disconnected
Residential gas reconnection trigger
1 year disconnected
Gray water systems
Must be engineer-designed & permitted
Septic permitting
Routed through county LAMP since 5-15-2018

Summary

Fresno County adopts the 2022 California Plumbing Code and IAPMO installation standards as its plumbing standard under Code Section 15.20.010, then layers on local permit triggers, such as a required pressure-test permit before restoring long-disconnected gas service to a commercial building.

City-specific rules exist: Fresno, and Clovis have their own plumbing permits rules that differ from Fresno County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

1.For all existing commercial and industrial establishments and places of assembly, when the service has been discontinued for one hundred-eighty (180) days or more, the gas meter may be turned on only after the piping has been pressure tested and when the test and gas appliances have been approved by the Building Official. A permit is required for this test.2.For all existing residential buildings where service has been discontinued for one (1) year or longer, the gas may be turned on only after the piping has been pressure tested and when the test and gas appliances have been approved by the Building Official. A permit is required for this test.D.Section 1212.11 Liquefied Petroleum Gas Facilities and Piping, is amended by adding the following: Liquid petroleum gas facilities shall not be located in any fireplace.

Exception: Decorative gas appliances may be used when the appliance is listed for the use.

E.Section 1215.0, Required Gas Piping Sizing, Subsection 1215.1, is amended by adding the following: Exception 1: For structures located in areas determined by the Building Official as not having a reasonable possibility of obtaining natural gas over the lifetime of the structure may size the gas piping system using Tables 1215.2(24) through 1215.2(35).

Exception 2: In non-residential construction gas pipe sizing within structures may be by any appropriate table with prior approval.

F.Section 1102.0 Roof Drains, Subsection 1102.1 is added to read as follows:

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 51).

Full Breakdown

by reference" as the plumbing standard enforced countywide by the Building Official. 020 then amends specific parts of that code for local conditions and sets several permit triggers of its own. " Residential buildings get a longer grace period under subsection (C)(2): gas service disconnected for a year or more triggers the same pressure-test-and-permit requirement before the gas can be turned back on. 0 to require that "every building shall have an independent connection with a private or public sewer," with a narrow exception letting multiple buildings on one legally undividable lot share a single building sewer. 020(H) folds private sewage disposal (septic) permitting into the county's Local Agency Management Program (LAMP), effective as of May 15, 2018.

Violations & Fines

Turning gas service back on to a long-disconnected commercial building without the required pressure test and Building Official approval violates Section 15.20.020(C)(1). Installing or altering a gray water system without an engineer-approved design and permit violates Section 15.20.020(G). Because Chapter 15.20 has no separate penalty section, a violation falls back to the county's general misdemeanor penalty under Section 1.12.010, up to a $500 fine and six months in jail.

Frequently Asked Questions

Do I need a permit to turn gas back on in a vacant commercial building?
Yes. Section 15.20.020(C)(1) requires the piping to be pressure tested and the gas appliances approved by the Building Official, under a permit, before the meter can be turned back on once commercial or industrial service has been disconnected 180 days or more.
Can I install a gray water system without hiring an engineer?
No. Section 15.20.020(G) requires gray water systems to be "an engineer designed system," and the design must be submitted to and approved by the county before a permit is issued.
What plumbing code does Fresno County enforce?
Section 15.20.010 adopts the 2022 California Plumbing Code and Appendices, plus the IAPMO Installation Standards, by reference as the plumbing standard for the unincorporated county.

Sources & Official References

Other rules in Fresno County

All Fresno County rules

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